shithub: lwext4

Download patch

ref: 53a848cb60542658fc7e9167d38ff30a8f5c788e
parent: ac78a04a195dfaec8f98d1a39753256d08210382
author: gkostka <[email protected]>
date: Sat Jan 11 19:23:00 EST 2014

USB MSC demo.

--- a/demos/stm32f429_disco/cmsis/stm32f4xx.h
+++ b/demos/stm32f429_disco/cmsis/stm32f4xx.h
@@ -121,7 +121,7 @@
   */           
 
 #if !defined  (HSE_VALUE) 
-  #define HSE_VALUE    ((uint32_t)25000000) /*!< Value of the External oscillator in Hz */
+  #define HSE_VALUE    ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
   
 #endif /* HSE_VALUE */
 
--- a/demos/stm32f429_disco/config.h
+++ b/demos/stm32f429_disco/config.h
@@ -1,7 +1,7 @@
 /**
  * @file    main.c
  * @version 0.01
- * @date    Oct 2, 2014
+ * @date    Jan 2, 2014
  * @author  Grzegorz Kostka, [email protected]
  * @brief   ...
  *
@@ -16,6 +16,7 @@
 #ifndef CONFIG_H_
 #define CONFIG_H_
 
+/**@brief   Main clock frequency.*/
 #define CFG_CCLK_FREQ       168000000ul
 
 #endif /* CONFIG_H_ */
--- /dev/null
+++ b/demos/stm32f429_disco/hw_init.c
@@ -1,0 +1,77 @@
+/**
+ * @file    hw_init.c
+ * @version 0.01
+ * @date    Oct 2, 2012
+ * @author  Grzegorz Kostka, [email protected]
+ * @brief   ...
+ *
+ * @note
+ *
+ * @addtogroup group
+ * @{
+ *      @addtogroup subgroup
+ *      @{
+ **********************************************************/
+
+#include <config.h>
+#include <stm32f4xx.h>
+#include <stm32f429i_discovery_lcd.h>
+#include <lcd_log.h>
+#include <pll.h>
+#include <stdint.h>
+
+#include <usb_core.h>
+#include <usbh_core.h>
+#include <usbh_msc_core.h>
+#include <usbh_usr.h>
+
+#include <pll.h>
+#include <hw_init.h>
+
+USB_OTG_CORE_HANDLE     USB_OTG_Core;
+USBH_HOST               USB_Host;
+
+void hw_init(void)
+{
+    pll_init();
+
+    /* Initialize the LEDs */
+    STM_EVAL_LEDInit(LED3);
+    STM_EVAL_LEDInit(LED4);
+
+    /*Init USB Host */
+    USBH_Init(&USB_OTG_Core,
+        USB_OTG_HS_CORE_ID,
+        &USB_Host,
+        &USBH_MSC_cb,
+        &USBH_USR_cb);
+
+    LCD_Init();
+    LCD_LayerInit();
+    LCD_DisplayOn();
+    LTDC_Cmd(ENABLE);
+    LCD_SetLayer(LCD_FOREGROUND_LAYER);
+    LCD_LOG_Init();
+
+    LCD_LOG_SetHeader((uint8_t *)"LWEXT4 DEMO");
+}
+
+void hw_usb_process(void)
+{
+    USBH_Process(&USB_OTG_Core, &USB_Host);
+}
+
+bool hw_usb_connected(void)
+{
+    return HCD_IsDeviceConnected(&USB_OTG_Core);
+}
+
+void hw_led_red(bool on)
+{
+    on ? STM_EVAL_LEDOn(LED4) : STM_EVAL_LEDOff(LED4);
+}
+
+void hw_led_green(bool on)
+{
+    on ? STM_EVAL_LEDOn(LED3) : STM_EVAL_LEDOff(LED3);
+}
--- /dev/null
+++ b/demos/stm32f429_disco/hw_init.h
@@ -1,0 +1,30 @@
+/**
+ * @file    hw_init.h
+ * @version 0.01
+ * @date    Oct 2, 2012
+ * @author  Grzegorz Kostka, [email protected]
+ * @brief   ...
+ *
+ * @note
+ *
+ * @addtogroup group
+ * @{
+ *      @addtogroup subgroup
+ *      @{
+ **********************************************************/
+
+#ifndef HW_INIT_H_
+#define HW_INIT_H_
+
+#include <config.h>
+#include <stdbool.h>
+
+void hw_init(void);
+void hw_usb_process(void);
+bool hw_usb_connected(void);
+
+void hw_led_red(bool on);
+void hw_led_green(bool on);
+
+
+#endif /* HW_INIT_H_ */
--- a/demos/stm32f429_disco/main.c
+++ b/demos/stm32f429_disco/main.c
@@ -13,57 +13,32 @@
  *      @{
  **********************************************************/
 
-#include "config.h"
-#include "stm32f4xx.h"
-#include "stm32f429i_discovery_lcd.h"
-#include "lcd_log.h"
-#include "pll.h"
-#include <stdint.h>
+#include <config.h>
+#include <hw_init.h>
 
+#include <stdio.h>
 
-uint32_t sEE_TIMEOUT_UserCallback(void)
+int main(void)
 {
-    return 0;
-}
+    volatile int count;
+    hw_init();
 
-int32_t bsp_init (void)
-{
-    /* Initialize the LEDs */
-    STM_EVAL_LEDInit(LED3);
-    STM_EVAL_LEDInit(LED4);
+    printf("Connect USB drive...\n");
 
-    LCD_Init();
-    LCD_LayerInit();
-    LCD_DisplayOn();
-    LTDC_Cmd(ENABLE);
-    LCD_SetLayer(LCD_FOREGROUND_LAYER);
-    LCD_LOG_Init();
+    while(!hw_usb_connected())
+        hw_usb_process();
+    printf("USB drive connected\n");
 
-    LCD_LOG_SetHeader((uint8_t *)"STM32F4 LWEXT4 DEMO");
+    hw_led_red(1);
 
-    return 0;
-}
-
-
-int main(void)
-{
-    volatile uint32_t count, count_max = 10000000;
-
-    pll_init();
-    bsp_init();
-
     int i = 0;
     while (1)
     {
-        for (count = 0; count < count_max; count++);
-        STM_EVAL_LEDOn(LED3);
-        STM_EVAL_LEDOn(LED4);
-        for (count = 0; count < count_max; count++);
-        STM_EVAL_LEDOff(LED3);
-        STM_EVAL_LEDOff(LED4);
-
-        __io_putchar((i++ % 10) + '0');__io_putchar('\n');
-
+        for (count = 0; count < 1000000; count++);
+        hw_led_green(1);
+        for (count = 0; count < 1000000; count++);
+        hw_led_green(0);
+        printf("%d\n", i++);
     }
 }
 
--- a/demos/stm32f429_disco/pll.h
+++ b/demos/stm32f429_disco/pll.h
@@ -19,7 +19,7 @@
 #include <config.h>
 
 
-/**@brief	...*/
+/**@brief	Clock initialization.*/
 void pll_init(void);
 
 
--- a/demos/stm32f429_disco/stm/stm32f429/stm32f429i_discovery_i2c_ee.h
+++ b/demos/stm32f429_disco/stm/stm32f429/stm32f429i_discovery_i2c_ee.h
@@ -89,7 +89,7 @@
       
 #define sEE_OK                    0
 #define sEE_FAIL                  1   
- 
+#define USE_DEFAULT_TIMEOUT_CALLBACK
 
 /**
   * @}
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/audio/inc/usbd_audio_core.h
@@ -1,0 +1,164 @@
+/**
+  ******************************************************************************
+  * @file    usbd_audio_core.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header file for the usbd_audio_core.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+
+#ifndef __USB_AUDIO_CORE_H_
+#define __USB_AUDIO_CORE_H_
+
+#include "usbd_ioreq.h"
+#include "usbd_req.h"
+#include "usbd_desc.h"
+
+
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup usbd_audio
+  * @brief This file is the Header file for USBD_audio.c
+  * @{
+  */ 
+
+
+/** @defgroup usbd_audio_Exported_Defines
+  * @{
+  */ 
+
+/* AudioFreq * DataSize (2 bytes) * NumChannels (Stereo: 2) */
+#define AUDIO_OUT_PACKET                              (uint32_t)(((USBD_AUDIO_FREQ * 2 * 2) /1000)) 
+
+/* Number of sub-packets in the audio transfer buffer. You can modify this value but always make sure
+  that it is an even number and higher than 3 */
+#define OUT_PACKET_NUM                                   4
+/* Total size of the audio transfer buffer */
+#define TOTAL_OUT_BUF_SIZE                           ((uint32_t)(AUDIO_OUT_PACKET * OUT_PACKET_NUM))
+
+#define AUDIO_CONFIG_DESC_SIZE                        109
+#define AUDIO_INTERFACE_DESC_SIZE                     9
+#define USB_AUDIO_DESC_SIZ                            0x09
+#define AUDIO_STANDARD_ENDPOINT_DESC_SIZE             0x09
+#define AUDIO_STREAMING_ENDPOINT_DESC_SIZE            0x07
+
+#define AUDIO_DESCRIPTOR_TYPE                         0x21
+#define USB_DEVICE_CLASS_AUDIO                        0x01
+#define AUDIO_SUBCLASS_AUDIOCONTROL                   0x01
+#define AUDIO_SUBCLASS_AUDIOSTREAMING                 0x02
+#define AUDIO_PROTOCOL_UNDEFINED                      0x00
+#define AUDIO_STREAMING_GENERAL                       0x01
+#define AUDIO_STREAMING_FORMAT_TYPE                   0x02
+
+/* Audio Descriptor Types */
+#define AUDIO_INTERFACE_DESCRIPTOR_TYPE               0x24
+#define AUDIO_ENDPOINT_DESCRIPTOR_TYPE                0x25
+
+/* Audio Control Interface Descriptor Subtypes */
+#define AUDIO_CONTROL_HEADER                          0x01
+#define AUDIO_CONTROL_INPUT_TERMINAL                  0x02
+#define AUDIO_CONTROL_OUTPUT_TERMINAL                 0x03
+#define AUDIO_CONTROL_FEATURE_UNIT                    0x06
+
+#define AUDIO_INPUT_TERMINAL_DESC_SIZE                0x0C
+#define AUDIO_OUTPUT_TERMINAL_DESC_SIZE               0x09
+#define AUDIO_STREAMING_INTERFACE_DESC_SIZE           0x07
+
+#define AUDIO_CONTROL_MUTE                            0x0001
+
+#define AUDIO_FORMAT_TYPE_I                           0x01
+#define AUDIO_FORMAT_TYPE_III                         0x03
+
+#define USB_ENDPOINT_TYPE_ISOCHRONOUS                 0x01
+#define AUDIO_ENDPOINT_GENERAL                        0x01
+
+#define AUDIO_REQ_GET_CUR                             0x81
+#define AUDIO_REQ_SET_CUR                             0x01
+
+#define AUDIO_OUT_STREAMING_CTRL                      0x02
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_TypesDefinitions
+  * @{
+  */
+typedef struct _Audio_Fops
+{
+    uint8_t  (*Init)         (uint32_t  AudioFreq, uint32_t Volume, uint32_t options);
+    uint8_t  (*DeInit)       (uint32_t options);
+    uint8_t  (*AudioCmd)     (uint8_t* pbuf, uint32_t size, uint8_t cmd);
+    uint8_t  (*VolumeCtl)    (uint8_t vol);
+    uint8_t  (*MuteCtl)      (uint8_t cmd);
+    uint8_t  (*PeriodicTC)   (uint8_t cmd);
+    uint8_t  (*GetState)     (void);
+}AUDIO_FOPS_TypeDef;
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_CORE_Exported_Macros
+  * @{
+  */ 
+#define AUDIO_PACKET_SZE(frq)          (uint8_t)(((frq * 2 * 2)/1000) & 0xFF), \
+                                       (uint8_t)((((frq * 2 * 2)/1000) >> 8) & 0xFF)
+#define SAMPLE_FREQ(frq)               (uint8_t)(frq), (uint8_t)((frq >> 8)), (uint8_t)((frq >> 16))
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_Variables
+  * @{
+  */ 
+
+extern USBD_Class_cb_TypeDef  AUDIO_cb;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_Functions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+#endif  // __USB_AUDIO_CORE_H_
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+  
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/audio/inc/usbd_audio_out_if.h
@@ -1,0 +1,125 @@
+/**
+  ******************************************************************************
+  * @file    usbd_audio_out_if.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header file for the usbd_audio_out_if.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+
+#ifndef __USB_AUDIO_OUT_IF_H_
+#define __USB_AUDIO_OUT_IF_H_
+
+#ifdef STM32F2XX
+ #include "stm322xg_usb_audio_codec.h"
+#elif defined(STM32F4XX)
+ #include "stm324xg_usb_audio_codec.h"
+#elif defined(STM32F10X_CL)
+ #include "stm3210c_usb_audio_codec.h"
+#endif /* STM32F2XX */
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup usbd_audio
+  * @brief This file is the Header file for USBD_audio.c
+  * @{
+  */ 
+
+
+/** @defgroup usbd_audio_Exported_Defines
+  * @{
+  */ 
+/* Audio Commands enmueration */
+typedef enum
+{
+  AUDIO_CMD_PLAY = 1,
+  AUDIO_CMD_PAUSE,
+  AUDIO_CMD_STOP,
+}AUDIO_CMD_TypeDef;
+
+/* Mute commands */
+#define AUDIO_MUTE                      0x01
+#define AUDIO_UNMUTE                    0x00
+
+/* Functions return value */
+#define AUDIO_OK                        0x00
+#define AUDIO_FAIL                      0xFF
+
+/* Audio Machine States */
+#define AUDIO_STATE_INACTIVE            0x00
+#define AUDIO_STATE_ACTIVE              0x01
+#define AUDIO_STATE_PLAYING             0x02
+#define AUDIO_STATE_PAUSED              0x03
+#define AUDIO_STATE_STOPPED             0x04
+#define AUDIO_STATE_ERROR               0x05
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_TypesDefinitions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_CORE_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_Variables
+  * @{
+  */ 
+
+extern AUDIO_FOPS_TypeDef  AUDIO_OUT_fops;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_Functions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+#endif  /* __USB_AUDIO_OUT_IF_H_ */
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+  
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/audio/src/usbd_audio_core.c
@@ -1,0 +1,671 @@
+/**
+  ******************************************************************************
+  * @file    usbd_audio_core.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides the high layer firmware functions to manage the 
+  *          following functionalities of the USB Audio Class:
+  *           - Initialization and Configuration of high and low layer
+  *           - Enumeration as Audio Streaming Device
+  *           - Audio Streaming data transfer
+  *           - AudioControl requests management
+  *           - Error management
+  *           
+  *  @verbatim
+  *      
+  *          ===================================================================      
+  *                                Audio Class Driver Description
+  *          =================================================================== 
+  *           This driver manages the Audio Class 1.0 following the "USB Device Class Definition for
+  *           Audio Devices V1.0 Mar 18, 98".
+  *           This driver implements the following aspects of the specification:
+  *             - Device descriptor management
+  *             - Configuration descriptor management
+  *             - Standard AC Interface Descriptor management
+  *             - 1 Audio Streaming Interface (with single channel, PCM, Stereo mode)
+  *             - 1 Audio Streaming Endpoint
+  *             - 1 Audio Terminal Input (1 channel)
+  *             - Audio Class-Specific AC Interfaces
+  *             - Audio Class-Specific AS Interfaces
+  *             - AudioControl Requests: only SET_CUR and GET_CUR requests are supported (for Mute)
+  *             - Audio Feature Unit (limited to Mute control)
+  *             - Audio Synchronization type: Asynchronous
+  *             - Single fixed audio sampling rate (configurable in usbd_conf.h file)
+  *          
+  *           @note
+  *            The Audio Class 1.0 is based on USB Specification 1.0 and thus supports only
+  *            Low and Full speed modes and does not allow High Speed transfers.
+  *            Please refer to "USB Device Class Definition for Audio Devices V1.0 Mar 18, 98"
+  *            for more details.
+  * 
+  *           These aspects may be enriched or modified for a specific user application.
+  *          
+  *            This driver doesn't implement the following aspects of the specification 
+  *            (but it is possible to manage these features with some modifications on this driver):
+  *             - AudioControl Endpoint management
+  *             - AudioControl requsests other than SET_CUR and GET_CUR
+  *             - Abstraction layer for AudioControl requests (only Mute functionality is managed)
+  *             - Audio Synchronization type: Adaptive
+  *             - Audio Compression modules and interfaces
+  *             - MIDI interfaces and modules
+  *             - Mixer/Selector/Processing/Extension Units (Feature unit is limited to Mute control)
+  *             - Any other application-specific modules
+  *             - Multiple and Variable audio sampling rates
+  *             - Out Streaming Endpoint/Interface (microphone)
+  *      
+  *  @endverbatim
+  *                                  
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "usbd_audio_core.h"
+#include "usbd_audio_out_if.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup usbd_audio 
+  * @brief usbd core module
+  * @{
+  */ 
+
+/** @defgroup usbd_audio_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_audio_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_audio_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_audio_Private_FunctionPrototypes
+  * @{
+  */
+
+/*********************************************
+   AUDIO Device library callbacks
+ *********************************************/
+static uint8_t  usbd_audio_Init       (void  *pdev, uint8_t cfgidx);
+static uint8_t  usbd_audio_DeInit     (void  *pdev, uint8_t cfgidx);
+static uint8_t  usbd_audio_Setup      (void  *pdev, USB_SETUP_REQ *req);
+static uint8_t  usbd_audio_EP0_RxReady(void *pdev);
+static uint8_t  usbd_audio_DataIn     (void *pdev, uint8_t epnum);
+static uint8_t  usbd_audio_DataOut    (void *pdev, uint8_t epnum);
+static uint8_t  usbd_audio_SOF        (void *pdev);
+static uint8_t  usbd_audio_OUT_Incplt (void  *pdev);
+
+/*********************************************
+   AUDIO Requests management functions
+ *********************************************/
+static void AUDIO_Req_GetCurrent(void *pdev, USB_SETUP_REQ *req);
+static void AUDIO_Req_SetCurrent(void *pdev, USB_SETUP_REQ *req);
+static uint8_t  *USBD_audio_GetCfgDesc (uint8_t speed, uint16_t *length);
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_audio_Private_Variables
+  * @{
+  */ 
+/* Main Buffer for Audio Data Out transfers and its relative pointers */
+uint8_t  IsocOutBuff [TOTAL_OUT_BUF_SIZE * 2];
+uint8_t* IsocOutWrPtr = IsocOutBuff;
+uint8_t* IsocOutRdPtr = IsocOutBuff;
+
+/* Main Buffer for Audio Control Rrequests transfers and its relative variables */
+uint8_t  AudioCtl[64];
+uint8_t  AudioCtlCmd = 0;
+uint32_t AudioCtlLen = 0;
+uint8_t  AudioCtlUnit = 0;
+
+static uint32_t PlayFlag = 0;
+
+static __IO uint32_t  usbd_audio_AltSet = 0;
+static uint8_t usbd_audio_CfgDesc[AUDIO_CONFIG_DESC_SIZE];
+
+/* AUDIO interface class callbacks structure */
+USBD_Class_cb_TypeDef  AUDIO_cb = 
+{
+  usbd_audio_Init,
+  usbd_audio_DeInit,
+  usbd_audio_Setup,
+  NULL, /* EP0_TxSent */
+  usbd_audio_EP0_RxReady,
+  usbd_audio_DataIn,
+  usbd_audio_DataOut,
+  usbd_audio_SOF,
+  NULL,
+  usbd_audio_OUT_Incplt,   
+  USBD_audio_GetCfgDesc,
+#ifdef USB_OTG_HS_CORE  
+  USBD_audio_GetCfgDesc, /* use same config as per FS */
+#endif    
+};
+
+/* USB AUDIO device Configuration Descriptor */
+static uint8_t usbd_audio_CfgDesc[AUDIO_CONFIG_DESC_SIZE] =
+{
+  /* Configuration 1 */
+  0x09,                                 /* bLength */
+  USB_CONFIGURATION_DESCRIPTOR_TYPE,    /* bDescriptorType */
+  LOBYTE(AUDIO_CONFIG_DESC_SIZE),       /* wTotalLength  109 bytes*/
+  HIBYTE(AUDIO_CONFIG_DESC_SIZE),      
+  0x02,                                 /* bNumInterfaces */
+  0x01,                                 /* bConfigurationValue */
+  0x00,                                 /* iConfiguration */
+  0xC0,                                 /* bmAttributes  BUS Powred*/
+  0x32,                                 /* bMaxPower = 100 mA*/
+  /* 09 byte*/
+  
+  /* USB Speaker Standard interface descriptor */
+  AUDIO_INTERFACE_DESC_SIZE,            /* bLength */
+  USB_INTERFACE_DESCRIPTOR_TYPE,        /* bDescriptorType */
+  0x00,                                 /* bInterfaceNumber */
+  0x00,                                 /* bAlternateSetting */
+  0x00,                                 /* bNumEndpoints */
+  USB_DEVICE_CLASS_AUDIO,               /* bInterfaceClass */
+  AUDIO_SUBCLASS_AUDIOCONTROL,          /* bInterfaceSubClass */
+  AUDIO_PROTOCOL_UNDEFINED,             /* bInterfaceProtocol */
+  0x00,                                 /* iInterface */
+  /* 09 byte*/
+  
+  /* USB Speaker Class-specific AC Interface Descriptor */
+  AUDIO_INTERFACE_DESC_SIZE,            /* bLength */
+  AUDIO_INTERFACE_DESCRIPTOR_TYPE,      /* bDescriptorType */
+  AUDIO_CONTROL_HEADER,                 /* bDescriptorSubtype */
+  0x00,          /* 1.00 */             /* bcdADC */
+  0x01,
+  0x27,                                 /* wTotalLength = 39*/
+  0x00,
+  0x01,                                 /* bInCollection */
+  0x01,                                 /* baInterfaceNr */
+  /* 09 byte*/
+  
+  /* USB Speaker Input Terminal Descriptor */
+  AUDIO_INPUT_TERMINAL_DESC_SIZE,       /* bLength */
+  AUDIO_INTERFACE_DESCRIPTOR_TYPE,      /* bDescriptorType */
+  AUDIO_CONTROL_INPUT_TERMINAL,         /* bDescriptorSubtype */
+  0x01,                                 /* bTerminalID */
+  0x01,                                 /* wTerminalType AUDIO_TERMINAL_USB_STREAMING   0x0101 */
+  0x01,
+  0x00,                                 /* bAssocTerminal */
+  0x01,                                 /* bNrChannels */
+  0x00,                                 /* wChannelConfig 0x0000  Mono */
+  0x00,
+  0x00,                                 /* iChannelNames */
+  0x00,                                 /* iTerminal */
+  /* 12 byte*/
+  
+  /* USB Speaker Audio Feature Unit Descriptor */
+  0x09,                                 /* bLength */
+  AUDIO_INTERFACE_DESCRIPTOR_TYPE,      /* bDescriptorType */
+  AUDIO_CONTROL_FEATURE_UNIT,           /* bDescriptorSubtype */
+  AUDIO_OUT_STREAMING_CTRL,             /* bUnitID */
+  0x01,                                 /* bSourceID */
+  0x01,                                 /* bControlSize */
+  AUDIO_CONTROL_MUTE,                   /* bmaControls(0) */
+  0x00,                                 /* bmaControls(1) */
+  0x00,                                 /* iTerminal */
+  /* 09 byte*/
+  
+  /*USB Speaker Output Terminal Descriptor */
+  0x09,      /* bLength */
+  AUDIO_INTERFACE_DESCRIPTOR_TYPE,      /* bDescriptorType */
+  AUDIO_CONTROL_OUTPUT_TERMINAL,        /* bDescriptorSubtype */
+  0x03,                                 /* bTerminalID */
+  0x01,                                 /* wTerminalType  0x0301*/
+  0x03,
+  0x00,                                 /* bAssocTerminal */
+  0x02,                                 /* bSourceID */
+  0x00,                                 /* iTerminal */
+  /* 09 byte*/
+  
+  /* USB Speaker Standard AS Interface Descriptor - Audio Streaming Zero Bandwith */
+  /* Interface 1, Alternate Setting 0                                             */
+  AUDIO_INTERFACE_DESC_SIZE,  /* bLength */
+  USB_INTERFACE_DESCRIPTOR_TYPE,        /* bDescriptorType */
+  0x01,                                 /* bInterfaceNumber */
+  0x00,                                 /* bAlternateSetting */
+  0x00,                                 /* bNumEndpoints */
+  USB_DEVICE_CLASS_AUDIO,               /* bInterfaceClass */
+  AUDIO_SUBCLASS_AUDIOSTREAMING,        /* bInterfaceSubClass */
+  AUDIO_PROTOCOL_UNDEFINED,             /* bInterfaceProtocol */
+  0x00,                                 /* iInterface */
+  /* 09 byte*/
+  
+  /* USB Speaker Standard AS Interface Descriptor - Audio Streaming Operational */
+  /* Interface 1, Alternate Setting 1                                           */
+  AUDIO_INTERFACE_DESC_SIZE,  /* bLength */
+  USB_INTERFACE_DESCRIPTOR_TYPE,        /* bDescriptorType */
+  0x01,                                 /* bInterfaceNumber */
+  0x01,                                 /* bAlternateSetting */
+  0x01,                                 /* bNumEndpoints */
+  USB_DEVICE_CLASS_AUDIO,               /* bInterfaceClass */
+  AUDIO_SUBCLASS_AUDIOSTREAMING,        /* bInterfaceSubClass */
+  AUDIO_PROTOCOL_UNDEFINED,             /* bInterfaceProtocol */
+  0x00,                                 /* iInterface */
+  /* 09 byte*/
+  
+  /* USB Speaker Audio Streaming Interface Descriptor */
+  AUDIO_STREAMING_INTERFACE_DESC_SIZE,  /* bLength */
+  AUDIO_INTERFACE_DESCRIPTOR_TYPE,      /* bDescriptorType */
+  AUDIO_STREAMING_GENERAL,              /* bDescriptorSubtype */
+  0x01,                                 /* bTerminalLink */
+  0x01,                                 /* bDelay */
+  0x01,                                 /* wFormatTag AUDIO_FORMAT_PCM  0x0001*/
+  0x00,
+  /* 07 byte*/
+  
+  /* USB Speaker Audio Type III Format Interface Descriptor */
+  0x0B,                                 /* bLength */
+  AUDIO_INTERFACE_DESCRIPTOR_TYPE,      /* bDescriptorType */
+  AUDIO_STREAMING_FORMAT_TYPE,          /* bDescriptorSubtype */
+  AUDIO_FORMAT_TYPE_III,                /* bFormatType */ 
+  0x02,                                 /* bNrChannels */
+  0x02,                                 /* bSubFrameSize :  2 Bytes per frame (16bits) */
+  16,                                   /* bBitResolution (16-bits per sample) */ 
+  0x01,                                 /* bSamFreqType only one frequency supported */ 
+  SAMPLE_FREQ(USBD_AUDIO_FREQ),         /* Audio sampling frequency coded on 3 bytes */
+  /* 11 byte*/
+  
+  /* Endpoint 1 - Standard Descriptor */
+  AUDIO_STANDARD_ENDPOINT_DESC_SIZE,    /* bLength */
+  USB_ENDPOINT_DESCRIPTOR_TYPE,         /* bDescriptorType */
+  AUDIO_OUT_EP,                         /* bEndpointAddress 1 out endpoint*/
+  USB_ENDPOINT_TYPE_ISOCHRONOUS,        /* bmAttributes */
+  AUDIO_PACKET_SZE(USBD_AUDIO_FREQ),    /* wMaxPacketSize in Bytes (Freq(Samples)*2(Stereo)*2(HalfWord)) */
+  0x01,                                 /* bInterval */
+  0x00,                                 /* bRefresh */
+  0x00,                                 /* bSynchAddress */
+  /* 09 byte*/
+  
+  /* Endpoint - Audio Streaming Descriptor*/
+  AUDIO_STREAMING_ENDPOINT_DESC_SIZE,   /* bLength */
+  AUDIO_ENDPOINT_DESCRIPTOR_TYPE,       /* bDescriptorType */
+  AUDIO_ENDPOINT_GENERAL,               /* bDescriptor */
+  0x00,                                 /* bmAttributes */
+  0x00,                                 /* bLockDelayUnits */
+  0x00,                                 /* wLockDelay */
+  0x00,
+  /* 07 byte*/
+} ;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_audio_Private_Functions
+  * @{
+  */ 
+
+/**
+* @brief  usbd_audio_Init
+*         Initilaizes the AUDIO interface.
+* @param  pdev: device instance
+* @param  cfgidx: Configuration index
+* @retval status
+*/
+static uint8_t  usbd_audio_Init (void  *pdev, 
+                                 uint8_t cfgidx)
+{  
+  /* Open EP OUT */
+  DCD_EP_Open(pdev,
+              AUDIO_OUT_EP,
+              AUDIO_OUT_PACKET,
+              USB_OTG_EP_ISOC);
+
+  /* Initialize the Audio output Hardware layer */
+  if (AUDIO_OUT_fops.Init(USBD_AUDIO_FREQ, DEFAULT_VOLUME, 0) != USBD_OK)
+  {
+    return USBD_FAIL;
+  }
+    
+  /* Prepare Out endpoint to receive audio data */
+  DCD_EP_PrepareRx(pdev,
+                   AUDIO_OUT_EP,
+                   (uint8_t*)IsocOutBuff,                        
+                   AUDIO_OUT_PACKET);  
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  usbd_audio_Init
+*         DeInitializes the AUDIO layer.
+* @param  pdev: device instance
+* @param  cfgidx: Configuration index
+* @retval status
+*/
+static uint8_t  usbd_audio_DeInit (void  *pdev, 
+                                   uint8_t cfgidx)
+{ 
+  DCD_EP_Close (pdev , AUDIO_OUT_EP);
+  
+  /* DeInitialize the Audio output Hardware layer */
+  if (AUDIO_OUT_fops.DeInit(0) != USBD_OK)
+  {
+    return USBD_FAIL;
+  }
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_Setup
+  *         Handles the Audio control request parsing.
+  * @param  pdev: instance
+  * @param  req: usb requests
+  * @retval status
+  */
+static uint8_t  usbd_audio_Setup (void  *pdev, 
+                                  USB_SETUP_REQ *req)
+{
+  uint16_t len=USB_AUDIO_DESC_SIZ;
+  uint8_t  *pbuf=usbd_audio_CfgDesc + 18;
+  
+  switch (req->bmRequest & USB_REQ_TYPE_MASK)
+  {
+    /* AUDIO Class Requests -------------------------------*/
+  case USB_REQ_TYPE_CLASS :    
+    switch (req->bRequest)
+    {
+    case AUDIO_REQ_GET_CUR:
+      AUDIO_Req_GetCurrent(pdev, req);
+      break;
+      
+    case AUDIO_REQ_SET_CUR:
+      AUDIO_Req_SetCurrent(pdev, req);   
+      break;
+
+    default:
+      USBD_CtlError (pdev, req);
+      return USBD_FAIL;
+    }
+    break;
+    
+    /* Standard Requests -------------------------------*/
+  case USB_REQ_TYPE_STANDARD:
+    switch (req->bRequest)
+    {
+    case USB_REQ_GET_DESCRIPTOR: 
+      if( (req->wValue >> 8) == AUDIO_DESCRIPTOR_TYPE)
+      {
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+        pbuf = usbd_audio_Desc;   
+#else
+        pbuf = usbd_audio_CfgDesc + 18;
+#endif 
+        len = MIN(USB_AUDIO_DESC_SIZ , req->wLength);
+      }
+      
+      USBD_CtlSendData (pdev, 
+                        pbuf,
+                        len);
+      break;
+      
+    case USB_REQ_GET_INTERFACE :
+      USBD_CtlSendData (pdev,
+                        (uint8_t *)&usbd_audio_AltSet,
+                        1);
+      break;
+      
+    case USB_REQ_SET_INTERFACE :
+      if ((uint8_t)(req->wValue) < AUDIO_TOTAL_IF_NUM)
+      {
+        usbd_audio_AltSet = (uint8_t)(req->wValue);
+      }
+      else
+      {
+        /* Call the error management function (command will be nacked */
+        USBD_CtlError (pdev, req);
+      }
+      break;
+    }
+  }
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_EP0_RxReady
+  *         Handles audio control requests data.
+  * @param  pdev: device device instance
+  * @retval status
+  */
+static uint8_t  usbd_audio_EP0_RxReady (void  *pdev)
+{ 
+  /* Check if an AudioControl request has been issued */
+  if (AudioCtlCmd == AUDIO_REQ_SET_CUR)
+  {/* In this driver, to simplify code, only SET_CUR request is managed */
+    /* Check for which addressed unit the AudioControl request has been issued */
+    if (AudioCtlUnit == AUDIO_OUT_STREAMING_CTRL)
+    {/* In this driver, to simplify code, only one unit is manage */
+      /* Call the audio interface mute function */
+      AUDIO_OUT_fops.MuteCtl(AudioCtl[0]);
+      
+      /* Reset the AudioCtlCmd variable to prevent re-entering this function */
+      AudioCtlCmd = 0;
+      AudioCtlLen = 0;
+    }
+  } 
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_DataIn
+  *         Handles the audio IN data stage.
+  * @param  pdev: instance
+  * @param  epnum: endpoint number
+  * @retval status
+  */
+static uint8_t  usbd_audio_DataIn (void *pdev, uint8_t epnum)
+{
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_DataOut
+  *         Handles the Audio Out data stage.
+  * @param  pdev: instance
+  * @param  epnum: endpoint number
+  * @retval status
+  */
+static uint8_t  usbd_audio_DataOut (void *pdev, uint8_t epnum)
+{     
+  if (epnum == AUDIO_OUT_EP)
+  {    
+    /* Increment the Buffer pointer or roll it back when all buffers are full */
+    if (IsocOutWrPtr >= (IsocOutBuff + (AUDIO_OUT_PACKET * OUT_PACKET_NUM)))
+    {/* All buffers are full: roll back */
+      IsocOutWrPtr = IsocOutBuff;
+    }
+    else
+    {/* Increment the buffer pointer */
+      IsocOutWrPtr += AUDIO_OUT_PACKET;
+    }
+    
+    /* Toggle the frame index */  
+    ((USB_OTG_CORE_HANDLE*)pdev)->dev.out_ep[epnum].even_odd_frame = 
+      (((USB_OTG_CORE_HANDLE*)pdev)->dev.out_ep[epnum].even_odd_frame)? 0:1;
+      
+    /* Prepare Out endpoint to receive next audio packet */
+    DCD_EP_PrepareRx(pdev,
+                     AUDIO_OUT_EP,
+                     (uint8_t*)(IsocOutWrPtr),
+                     AUDIO_OUT_PACKET);
+      
+    /* Trigger the start of streaming only when half buffer is full */
+    if ((PlayFlag == 0) && (IsocOutWrPtr >= (IsocOutBuff + ((AUDIO_OUT_PACKET * OUT_PACKET_NUM) / 2))))
+    {
+      /* Enable start of Streaming */
+      PlayFlag = 1;
+    }
+  }
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_SOF
+  *         Handles the SOF event (data buffer update and synchronization).
+  * @param  pdev: instance
+  * @param  epnum: endpoint number
+  * @retval status
+  */
+static uint8_t  usbd_audio_SOF (void *pdev)
+{     
+  /* Check if there are available data in stream buffer.
+    In this function, a single variable (PlayFlag) is used to avoid software delays.
+    The play operation must be executed as soon as possible after the SOF detection. */
+  if (PlayFlag)
+  {      
+    /* Start playing received packet */
+    AUDIO_OUT_fops.AudioCmd((uint8_t*)(IsocOutRdPtr),  /* Samples buffer pointer */
+                            AUDIO_OUT_PACKET,          /* Number of samples in Bytes */
+                            AUDIO_CMD_PLAY);           /* Command to be processed */
+    
+    /* Increment the Buffer pointer or roll it back when all buffers all full */  
+    if (IsocOutRdPtr >= (IsocOutBuff + (AUDIO_OUT_PACKET * OUT_PACKET_NUM)))
+    {/* Roll back to the start of buffer */
+      IsocOutRdPtr = IsocOutBuff;
+    }
+    else
+    {/* Increment to the next sub-buffer */
+      IsocOutRdPtr += AUDIO_OUT_PACKET;
+    }
+    
+    /* If all available buffers have been consumed, stop playing */
+    if (IsocOutRdPtr == IsocOutWrPtr)
+    {    
+      /* Pause the audio stream */
+      AUDIO_OUT_fops.AudioCmd((uint8_t*)(IsocOutBuff),   /* Samples buffer pointer */
+                              AUDIO_OUT_PACKET,          /* Number of samples in Bytes */
+                              AUDIO_CMD_PAUSE);          /* Command to be processed */
+      
+      /* Stop entering play loop */
+      PlayFlag = 0;
+      
+      /* Reset buffer pointers */
+      IsocOutRdPtr = IsocOutBuff;
+      IsocOutWrPtr = IsocOutBuff;
+    }
+  }
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_OUT_Incplt
+  *         Handles the iso out incomplete event.
+  * @param  pdev: instance
+  * @retval status
+  */
+static uint8_t  usbd_audio_OUT_Incplt (void  *pdev)
+{
+  return USBD_OK;
+}
+
+/******************************************************************************
+     AUDIO Class requests management
+******************************************************************************/
+/**
+  * @brief  AUDIO_Req_GetCurrent
+  *         Handles the GET_CUR Audio control request.
+  * @param  pdev: instance
+  * @param  req: setup class request
+  * @retval status
+  */
+static void AUDIO_Req_GetCurrent(void *pdev, USB_SETUP_REQ *req)
+{  
+  /* Send the current mute state */
+  USBD_CtlSendData (pdev, 
+                    AudioCtl,
+                    req->wLength);
+}
+
+/**
+  * @brief  AUDIO_Req_SetCurrent
+  *         Handles the SET_CUR Audio control request.
+  * @param  pdev: instance
+  * @param  req: setup class request
+  * @retval status
+  */
+static void AUDIO_Req_SetCurrent(void *pdev, USB_SETUP_REQ *req)
+{ 
+  if (req->wLength)
+  {
+    /* Prepare the reception of the buffer over EP0 */
+    USBD_CtlPrepareRx (pdev, 
+                       AudioCtl,
+                       req->wLength);
+    
+    /* Set the global variables indicating current request and its length 
+    to the function usbd_audio_EP0_RxReady() which will process the request */
+    AudioCtlCmd = AUDIO_REQ_SET_CUR;     /* Set the request value */
+    AudioCtlLen = req->wLength;          /* Set the request data length */
+    AudioCtlUnit = HIBYTE(req->wIndex);  /* Set the request target unit */
+  }
+}
+
+/**
+  * @brief  USBD_audio_GetCfgDesc 
+  *         Returns configuration descriptor.
+  * @param  speed : current device speed
+  * @param  length : pointer data length
+  * @retval pointer to descriptor buffer
+  */
+static uint8_t  *USBD_audio_GetCfgDesc (uint8_t speed, uint16_t *length)
+{
+  *length = sizeof (usbd_audio_CfgDesc);
+  return usbd_audio_CfgDesc;
+}
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/audio/src/usbd_audio_out_if.c
@@ -1,0 +1,321 @@
+/**
+  ******************************************************************************
+  * @file    usbd_audio_out_if.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides the Audio Out (palyback) interface API.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_audio_core.h"
+#include "usbd_audio_out_if.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup usbd_audio_out_if 
+  * @brief usbd out interface module
+  * @{
+  */ 
+
+/** @defgroup usbd_audio_out_if_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_audio_out_if_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_audio_out_if_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_audio_out_if_Private_FunctionPrototypes
+  * @{
+  */
+static uint8_t  Init         (uint32_t  AudioFreq, uint32_t Volume, uint32_t options);
+static uint8_t  DeInit       (uint32_t options);
+static uint8_t  AudioCmd     (uint8_t* pbuf, uint32_t size, uint8_t cmd);
+static uint8_t  VolumeCtl    (uint8_t vol);
+static uint8_t  MuteCtl      (uint8_t cmd);
+static uint8_t  PeriodicTC   (uint8_t cmd);
+static uint8_t  GetState     (void);
+
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_audio_out_if_Private_Variables
+  * @{
+  */ 
+AUDIO_FOPS_TypeDef  AUDIO_OUT_fops = 
+{
+  Init,
+  DeInit,
+  AudioCmd,
+  VolumeCtl,
+  MuteCtl,
+  PeriodicTC,
+  GetState
+};
+
+static uint8_t AudioState = AUDIO_STATE_INACTIVE;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_audio_out_if_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @brief  Init
+  *         Initialize and configures all required resources for audio play function.
+  * @param  AudioFreq: Statrtup audio frequency. 
+  * @param  Volume: Startup volume to be set.
+  * @param  options: specific options passed to low layer function.
+  * @retval AUDIO_OK if all operations succeed, AUDIO_FAIL else.
+  */
+static uint8_t  Init         (uint32_t AudioFreq, 
+                              uint32_t Volume, 
+                              uint32_t options)
+{
+  static uint32_t Initialized = 0;
+  
+  /* Check if the low layer has already been initialized */
+  if (Initialized == 0)
+  {
+    /* Call low layer function */
+    if (EVAL_AUDIO_Init(OUTPUT_DEVICE_AUTO, Volume, AudioFreq) != 0)
+    {
+      AudioState = AUDIO_STATE_ERROR;
+      return AUDIO_FAIL;
+    }
+    
+    /* Set the Initialization flag to prevent reinitializing the interface again */
+    Initialized = 1;
+  }
+  
+  /* Update the Audio state machine */
+  AudioState = AUDIO_STATE_ACTIVE;
+    
+  return AUDIO_OK;
+}
+
+/**
+  * @brief  DeInit
+  *         Free all resources used by low layer and stops audio-play function.
+  * @param  options: options passed to low layer function.
+  * @retval AUDIO_OK if all operations succeed, AUDIO_FAIL else.
+  */
+static uint8_t  DeInit       (uint32_t options)
+{
+  /* Update the Audio state machine */
+  AudioState = AUDIO_STATE_INACTIVE;
+  
+  return AUDIO_OK;
+}
+
+/**
+  * @brief  AudioCmd 
+  *         Play, Stop, Pause or Resume current file.
+  * @param  pbuf: address from which file shoud be played.
+  * @param  size: size of the current buffer/file.
+  * @param  cmd: command to be executed, can be AUDIO_CMD_PLAY , AUDIO_CMD_PAUSE, 
+  *              AUDIO_CMD_RESUME or AUDIO_CMD_STOP.
+  * @retval AUDIO_OK if all operations succeed, AUDIO_FAIL else.
+  */
+static uint8_t  AudioCmd(uint8_t* pbuf, 
+                         uint32_t size,
+                         uint8_t cmd)
+{
+  /* Check the current state */
+  if ((AudioState == AUDIO_STATE_INACTIVE) || (AudioState == AUDIO_STATE_ERROR))
+  {
+    AudioState = AUDIO_STATE_ERROR;
+    return AUDIO_FAIL;
+  }
+  
+  switch (cmd)
+  {
+    /* Process the PLAY command ----------------------------*/
+  case AUDIO_CMD_PLAY:
+    /* If current state is Active or Stopped */
+    if ((AudioState == AUDIO_STATE_ACTIVE) || \
+       (AudioState == AUDIO_STATE_STOPPED) || \
+       (AudioState == AUDIO_STATE_PLAYING))
+    {
+      Audio_MAL_Play((uint32_t)pbuf, (size/2));
+      AudioState = AUDIO_STATE_PLAYING;
+      return AUDIO_OK;
+    }
+    /* If current state is Paused */
+    else if (AudioState == AUDIO_STATE_PAUSED)
+    {
+      if (EVAL_AUDIO_PauseResume(AUDIO_RESUME, (uint32_t)pbuf, (size/2)) != 0)
+      {
+        AudioState = AUDIO_STATE_ERROR;
+        return AUDIO_FAIL;
+      }
+      else
+      {
+        AudioState = AUDIO_STATE_PLAYING;
+        return AUDIO_OK;
+      } 
+    } 
+    else /* Not allowed command */
+    {
+      return AUDIO_FAIL;
+    }
+    
+    /* Process the STOP command ----------------------------*/
+  case AUDIO_CMD_STOP:
+    if (AudioState != AUDIO_STATE_PLAYING)
+    {
+      /* Unsupported command */
+      return AUDIO_FAIL;
+    }
+    else if (EVAL_AUDIO_Stop(CODEC_PDWN_SW) != 0)
+    {
+      AudioState = AUDIO_STATE_ERROR;
+      return AUDIO_FAIL;
+    }
+    else
+    {
+      AudioState = AUDIO_STATE_STOPPED;
+      return AUDIO_OK;
+    }
+  
+    /* Process the PAUSE command ---------------------------*/
+  case AUDIO_CMD_PAUSE:
+    if (AudioState != AUDIO_STATE_PLAYING)
+    {
+      /* Unsupported command */
+      return AUDIO_FAIL;
+    }
+    else if (EVAL_AUDIO_PauseResume(AUDIO_PAUSE, (uint32_t)pbuf, (size/2)) != 0)
+    {
+      AudioState = AUDIO_STATE_ERROR;
+      return AUDIO_FAIL;
+    }
+    else
+    {
+      AudioState = AUDIO_STATE_PAUSED;
+      return AUDIO_OK;
+    } 
+    
+    /* Unsupported command ---------------------------------*/
+  default:
+    return AUDIO_FAIL;
+  }  
+}
+
+/**
+  * @brief  VolumeCtl
+  *         Set the volume level in %
+  * @param  vol: volume level to be set in % (from 0% to 100%)
+  * @retval AUDIO_OK if all operations succeed, AUDIO_FAIL else.
+  */
+static uint8_t  VolumeCtl    (uint8_t vol)
+{
+  /* Call low layer volume setting function */  
+  if (EVAL_AUDIO_VolumeCtl(vol) != 0)
+  {
+    AudioState = AUDIO_STATE_ERROR;
+    return AUDIO_FAIL;
+  }
+  
+  return AUDIO_OK;
+}
+
+/**
+  * @brief  MuteCtl
+  *         Mute or Unmute the audio current output
+  * @param  cmd: can be 0 to unmute, or 1 to mute.
+  * @retval AUDIO_OK if all operations succeed, AUDIO_FAIL else.
+  */
+static uint8_t  MuteCtl      (uint8_t cmd)
+{
+  /* Call low layer mute setting function */  
+  if (EVAL_AUDIO_Mute(cmd) != 0)
+  {
+    AudioState = AUDIO_STATE_ERROR;
+    return AUDIO_FAIL;
+  }
+  
+  return AUDIO_OK;
+}
+
+/**
+  * @brief  
+  *         
+  * @param  
+  * @param  
+  * @retval AUDIO_OK if all operations succeed, AUDIO_FAIL else.
+  */
+static uint8_t  PeriodicTC   (uint8_t cmd)
+{
+
+  
+  return AUDIO_OK;
+}
+
+
+/**
+  * @brief  GetState
+  *         Return the current state of the audio machine
+  * @param  None
+  * @retval Current State.
+  */
+static uint8_t  GetState   (void)
+{
+  return AudioState;
+}
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/cdc/inc/usbd_cdc_core.h
@@ -1,0 +1,143 @@
+/**
+  ******************************************************************************
+  * @file    usbd_cdc_core.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header file for the usbd_cdc_core.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+
+#ifndef __USB_CDC_CORE_H_
+#define __USB_CDC_CORE_H_
+
+#include  "usbd_ioreq.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup usbd_cdc
+  * @brief This file is the Header file for USBD_cdc.c
+  * @{
+  */ 
+
+
+/** @defgroup usbd_cdc_Exported_Defines
+  * @{
+  */ 
+#define USB_CDC_CONFIG_DESC_SIZ                (67)
+#define USB_CDC_DESC_SIZ                       (67-9)
+
+#define CDC_DESCRIPTOR_TYPE                     0x21
+
+#define DEVICE_CLASS_CDC                        0x02
+#define DEVICE_SUBCLASS_CDC                     0x00
+
+
+#define USB_DEVICE_DESCRIPTOR_TYPE              0x01
+#define USB_CONFIGURATION_DESCRIPTOR_TYPE       0x02
+#define USB_STRING_DESCRIPTOR_TYPE              0x03
+#define USB_INTERFACE_DESCRIPTOR_TYPE           0x04
+#define USB_ENDPOINT_DESCRIPTOR_TYPE            0x05
+
+#define STANDARD_ENDPOINT_DESC_SIZE             0x09
+
+#define CDC_DATA_IN_PACKET_SIZE                CDC_DATA_MAX_PACKET_SIZE
+        
+#define CDC_DATA_OUT_PACKET_SIZE               CDC_DATA_MAX_PACKET_SIZE
+
+/*---------------------------------------------------------------------*/
+/*  CDC definitions                                                    */
+/*---------------------------------------------------------------------*/
+
+/**************************************************/
+/* CDC Requests                                   */
+/**************************************************/
+#define SEND_ENCAPSULATED_COMMAND               0x00
+#define GET_ENCAPSULATED_RESPONSE               0x01
+#define SET_COMM_FEATURE                        0x02
+#define GET_COMM_FEATURE                        0x03
+#define CLEAR_COMM_FEATURE                      0x04
+#define SET_LINE_CODING                         0x20
+#define GET_LINE_CODING                         0x21
+#define SET_CONTROL_LINE_STATE                  0x22
+#define SEND_BREAK                              0x23
+#define NO_CMD                                  0xFF
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_TypesDefinitions
+  * @{
+  */
+typedef struct _CDC_IF_PROP
+{
+  uint16_t (*pIf_Init)     (void);   
+  uint16_t (*pIf_DeInit)   (void);   
+  uint16_t (*pIf_Ctrl)     (uint32_t Cmd, uint8_t* Buf, uint32_t Len);
+  uint16_t (*pIf_DataTx)   (uint8_t* Buf, uint32_t Len);
+  uint16_t (*pIf_DataRx)   (uint8_t* Buf, uint32_t Len);
+}
+CDC_IF_Prop_TypeDef;
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_CORE_Exported_Macros
+  * @{
+  */ 
+  
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_Variables
+  * @{
+  */ 
+
+extern USBD_Class_cb_TypeDef  USBD_CDC_cb;
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_Functions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+#endif  // __USB_CDC_CORE_H_
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+  
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/cdc/inc/usbd_cdc_if_template.h
@@ -1,0 +1,46 @@
+/**
+  ******************************************************************************
+  * @file    usbd_cdc_if_template.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Header for dfu_mal.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_CDC_IF_TEMPLATE_H
+#define __USBD_CDC_IF_TEMPLATE_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+#include "usbd_conf.h"
+#include "usbd_cdc_core.h"
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+extern CDC_IF_Prop_TypeDef  TEMPLATE_fops;
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+#endif /* __USBD_CDC_IF_TEMPLATE_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/cdc/src/usbd_cdc_core.c
@@ -1,0 +1,817 @@
+/**
+  ******************************************************************************
+  * @file    usbd_cdc_core.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides the high layer firmware functions to manage the 
+  *          following functionalities of the USB CDC Class:
+  *           - Initialization and Configuration of high and low layer
+  *           - Enumeration as CDC Device (and enumeration for each implemented memory interface)
+  *           - OUT/IN data transfer
+  *           - Command IN transfer (class requests management)
+  *           - Error management
+  *           
+  *  @verbatim
+  *      
+  *          ===================================================================      
+  *                                CDC Class Driver Description
+  *          =================================================================== 
+  *           This driver manages the "Universal Serial Bus Class Definitions for Communications Devices
+  *           Revision 1.2 November 16, 2007" and the sub-protocol specification of "Universal Serial Bus 
+  *           Communications Class Subclass Specification for PSTN Devices Revision 1.2 February 9, 2007"
+  *           This driver implements the following aspects of the specification:
+  *             - Device descriptor management
+  *             - Configuration descriptor management
+  *             - Enumeration as CDC device with 2 data endpoints (IN and OUT) and 1 command endpoint (IN)
+  *             - Requests management (as described in section 6.2 in specification)
+  *             - Abstract Control Model compliant
+  *             - Union Functional collection (using 1 IN endpoint for control)
+  *             - Data interface class
+
+  *           @note
+  *             For the Abstract Control Model, this core allows only transmitting the requests to
+  *             lower layer dispatcher (ie. usbd_cdc_vcp.c/.h) which should manage each request and
+  *             perform relative actions.
+  * 
+  *           These aspects may be enriched or modified for a specific user application.
+  *          
+  *            This driver doesn't implement the following aspects of the specification 
+  *            (but it is possible to manage these features with some modifications on this driver):
+  *             - Any class-specific aspect relative to communication classes should be managed by user application.
+  *             - All communication classes other than PSTN are not managed
+  *      
+  *  @endverbatim
+  *                                  
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_cdc_core.h"
+#include "usbd_desc.h"
+#include "usbd_req.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup usbd_cdc 
+  * @brief usbd core module
+  * @{
+  */ 
+
+/** @defgroup usbd_cdc_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_cdc_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_cdc_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_cdc_Private_FunctionPrototypes
+  * @{
+  */
+
+/*********************************************
+   CDC Device library callbacks
+ *********************************************/
+static uint8_t  usbd_cdc_Init        (void  *pdev, uint8_t cfgidx);
+static uint8_t  usbd_cdc_DeInit      (void  *pdev, uint8_t cfgidx);
+static uint8_t  usbd_cdc_Setup       (void  *pdev, USB_SETUP_REQ *req);
+static uint8_t  usbd_cdc_EP0_RxReady  (void *pdev);
+static uint8_t  usbd_cdc_DataIn      (void *pdev, uint8_t epnum);
+static uint8_t  usbd_cdc_DataOut     (void *pdev, uint8_t epnum);
+static uint8_t  usbd_cdc_SOF         (void *pdev);
+
+/*********************************************
+   CDC specific management functions
+ *********************************************/
+static void Handle_USBAsynchXfer  (void *pdev);
+static uint8_t  *USBD_cdc_GetCfgDesc (uint8_t speed, uint16_t *length);
+#ifdef USE_USB_OTG_HS  
+static uint8_t  *USBD_cdc_GetOtherCfgDesc (uint8_t speed, uint16_t *length);
+#endif
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_cdc_Private_Variables
+  * @{
+  */ 
+extern CDC_IF_Prop_TypeDef  APP_FOPS;
+extern uint8_t USBD_DeviceDesc   [USB_SIZ_DEVICE_DESC];
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t usbd_cdc_CfgDesc  [USB_CDC_CONFIG_DESC_SIZ] __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t usbd_cdc_OtherCfgDesc  [USB_CDC_CONFIG_DESC_SIZ] __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN static __IO uint32_t  usbd_cdc_AltSet  __ALIGN_END = 0;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t USB_Rx_Buffer   [CDC_DATA_MAX_PACKET_SIZE] __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t APP_Rx_Buffer   [APP_RX_DATA_SIZE] __ALIGN_END ; 
+
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t CmdBuff[CDC_CMD_PACKET_SZE] __ALIGN_END ;
+
+uint32_t APP_Rx_ptr_in  = 0;
+uint32_t APP_Rx_ptr_out = 0;
+uint32_t APP_Rx_length  = 0;
+
+uint8_t  USB_Tx_State = 0;
+
+static uint32_t cdcCmd = 0xFF;
+static uint32_t cdcLen = 0;
+
+/* CDC interface class callbacks structure */
+USBD_Class_cb_TypeDef  USBD_CDC_cb = 
+{
+  usbd_cdc_Init,
+  usbd_cdc_DeInit,
+  usbd_cdc_Setup,
+  NULL,                 /* EP0_TxSent, */
+  usbd_cdc_EP0_RxReady,
+  usbd_cdc_DataIn,
+  usbd_cdc_DataOut,
+  usbd_cdc_SOF,
+  NULL,
+  NULL,     
+  USBD_cdc_GetCfgDesc,
+#ifdef USE_USB_OTG_HS   
+  USBD_cdc_GetOtherCfgDesc, /* use same cobfig as per FS */
+#endif /* USE_USB_OTG_HS  */
+};
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+/* USB CDC device Configuration Descriptor */
+__ALIGN_BEGIN uint8_t usbd_cdc_CfgDesc[USB_CDC_CONFIG_DESC_SIZ]  __ALIGN_END =
+{
+  /*Configuration Descriptor*/
+  0x09,   /* bLength: Configuration Descriptor size */
+  USB_CONFIGURATION_DESCRIPTOR_TYPE,      /* bDescriptorType: Configuration */
+  USB_CDC_CONFIG_DESC_SIZ,                /* wTotalLength:no of returned bytes */
+  0x00,
+  0x02,   /* bNumInterfaces: 2 interface */
+  0x01,   /* bConfigurationValue: Configuration value */
+  0x00,   /* iConfiguration: Index of string descriptor describing the configuration */
+  0xC0,   /* bmAttributes: self powered */
+  0x32,   /* MaxPower 0 mA */
+  
+  /*---------------------------------------------------------------------------*/
+  
+  /*Interface Descriptor */
+  0x09,   /* bLength: Interface Descriptor size */
+  USB_INTERFACE_DESCRIPTOR_TYPE,  /* bDescriptorType: Interface */
+  /* Interface descriptor type */
+  0x00,   /* bInterfaceNumber: Number of Interface */
+  0x00,   /* bAlternateSetting: Alternate setting */
+  0x01,   /* bNumEndpoints: One endpoints used */
+  0x02,   /* bInterfaceClass: Communication Interface Class */
+  0x02,   /* bInterfaceSubClass: Abstract Control Model */
+  0x01,   /* bInterfaceProtocol: Common AT commands */
+  0x00,   /* iInterface: */
+  
+  /*Header Functional Descriptor*/
+  0x05,   /* bLength: Endpoint Descriptor size */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x00,   /* bDescriptorSubtype: Header Func Desc */
+  0x10,   /* bcdCDC: spec release number */
+  0x01,
+  
+  /*Call Management Functional Descriptor*/
+  0x05,   /* bFunctionLength */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x01,   /* bDescriptorSubtype: Call Management Func Desc */
+  0x00,   /* bmCapabilities: D0+D1 */
+  0x01,   /* bDataInterface: 1 */
+  
+  /*ACM Functional Descriptor*/
+  0x04,   /* bFunctionLength */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x02,   /* bDescriptorSubtype: Abstract Control Management desc */
+  0x02,   /* bmCapabilities */
+  
+  /*Union Functional Descriptor*/
+  0x05,   /* bFunctionLength */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x06,   /* bDescriptorSubtype: Union func desc */
+  0x00,   /* bMasterInterface: Communication class interface */
+  0x01,   /* bSlaveInterface0: Data Class Interface */
+  
+  /*Endpoint 2 Descriptor*/
+  0x07,                           /* bLength: Endpoint Descriptor size */
+  USB_ENDPOINT_DESCRIPTOR_TYPE,   /* bDescriptorType: Endpoint */
+  CDC_CMD_EP,                     /* bEndpointAddress */
+  0x03,                           /* bmAttributes: Interrupt */
+  LOBYTE(CDC_CMD_PACKET_SZE),     /* wMaxPacketSize: */
+  HIBYTE(CDC_CMD_PACKET_SZE),
+#ifdef USE_USB_OTG_HS
+  0x10,                           /* bInterval: */
+#else
+  0xFF,                           /* bInterval: */
+#endif /* USE_USB_OTG_HS */
+  
+  /*---------------------------------------------------------------------------*/
+  
+  /*Data class interface descriptor*/
+  0x09,   /* bLength: Endpoint Descriptor size */
+  USB_INTERFACE_DESCRIPTOR_TYPE,  /* bDescriptorType: */
+  0x01,   /* bInterfaceNumber: Number of Interface */
+  0x00,   /* bAlternateSetting: Alternate setting */
+  0x02,   /* bNumEndpoints: Two endpoints used */
+  0x0A,   /* bInterfaceClass: CDC */
+  0x00,   /* bInterfaceSubClass: */
+  0x00,   /* bInterfaceProtocol: */
+  0x00,   /* iInterface: */
+  
+  /*Endpoint OUT Descriptor*/
+  0x07,   /* bLength: Endpoint Descriptor size */
+  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType: Endpoint */
+  CDC_OUT_EP,                        /* bEndpointAddress */
+  0x02,                              /* bmAttributes: Bulk */
+  LOBYTE(CDC_DATA_MAX_PACKET_SIZE),  /* wMaxPacketSize: */
+  HIBYTE(CDC_DATA_MAX_PACKET_SIZE),
+  0x00,                              /* bInterval: ignore for Bulk transfer */
+  
+  /*Endpoint IN Descriptor*/
+  0x07,   /* bLength: Endpoint Descriptor size */
+  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType: Endpoint */
+  CDC_IN_EP,                         /* bEndpointAddress */
+  0x02,                              /* bmAttributes: Bulk */
+  LOBYTE(CDC_DATA_MAX_PACKET_SIZE),  /* wMaxPacketSize: */
+  HIBYTE(CDC_DATA_MAX_PACKET_SIZE),
+  0x00                               /* bInterval: ignore for Bulk transfer */
+} ;
+
+#ifdef USE_USB_OTG_HS
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */ 
+__ALIGN_BEGIN uint8_t usbd_cdc_OtherCfgDesc[USB_CDC_CONFIG_DESC_SIZ]  __ALIGN_END =
+{ 
+  0x09,   /* bLength: Configuation Descriptor size */
+  USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION,   
+  USB_CDC_CONFIG_DESC_SIZ,
+  0x00,
+  0x02,   /* bNumInterfaces: 2 interfaces */
+  0x01,   /* bConfigurationValue: */
+  0x04,   /* iConfiguration: */
+  0xC0,   /* bmAttributes: */
+  0x32,   /* MaxPower 100 mA */  
+  
+  /*Interface Descriptor */
+  0x09,   /* bLength: Interface Descriptor size */
+  USB_INTERFACE_DESCRIPTOR_TYPE,  /* bDescriptorType: Interface */
+  /* Interface descriptor type */
+  0x00,   /* bInterfaceNumber: Number of Interface */
+  0x00,   /* bAlternateSetting: Alternate setting */
+  0x01,   /* bNumEndpoints: One endpoints used */
+  0x02,   /* bInterfaceClass: Communication Interface Class */
+  0x02,   /* bInterfaceSubClass: Abstract Control Model */
+  0x01,   /* bInterfaceProtocol: Common AT commands */
+  0x00,   /* iInterface: */
+  
+  /*Header Functional Descriptor*/
+  0x05,   /* bLength: Endpoint Descriptor size */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x00,   /* bDescriptorSubtype: Header Func Desc */
+  0x10,   /* bcdCDC: spec release number */
+  0x01,
+  
+  /*Call Management Functional Descriptor*/
+  0x05,   /* bFunctionLength */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x01,   /* bDescriptorSubtype: Call Management Func Desc */
+  0x00,   /* bmCapabilities: D0+D1 */
+  0x01,   /* bDataInterface: 1 */
+  
+  /*ACM Functional Descriptor*/
+  0x04,   /* bFunctionLength */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x02,   /* bDescriptorSubtype: Abstract Control Management desc */
+  0x02,   /* bmCapabilities */
+  
+  /*Union Functional Descriptor*/
+  0x05,   /* bFunctionLength */
+  0x24,   /* bDescriptorType: CS_INTERFACE */
+  0x06,   /* bDescriptorSubtype: Union func desc */
+  0x00,   /* bMasterInterface: Communication class interface */
+  0x01,   /* bSlaveInterface0: Data Class Interface */
+  
+  /*Endpoint 2 Descriptor*/
+  0x07,                           /* bLength: Endpoint Descriptor size */
+  USB_ENDPOINT_DESCRIPTOR_TYPE,   /* bDescriptorType: Endpoint */
+  CDC_CMD_EP,                     /* bEndpointAddress */
+  0x03,                           /* bmAttributes: Interrupt */
+  LOBYTE(CDC_CMD_PACKET_SZE),     /* wMaxPacketSize: */
+  HIBYTE(CDC_CMD_PACKET_SZE),
+  0xFF,                           /* bInterval: */
+  
+  /*---------------------------------------------------------------------------*/
+  
+  /*Data class interface descriptor*/
+  0x09,   /* bLength: Endpoint Descriptor size */
+  USB_INTERFACE_DESCRIPTOR_TYPE,  /* bDescriptorType: */
+  0x01,   /* bInterfaceNumber: Number of Interface */
+  0x00,   /* bAlternateSetting: Alternate setting */
+  0x02,   /* bNumEndpoints: Two endpoints used */
+  0x0A,   /* bInterfaceClass: CDC */
+  0x00,   /* bInterfaceSubClass: */
+  0x00,   /* bInterfaceProtocol: */
+  0x00,   /* iInterface: */
+  
+  /*Endpoint OUT Descriptor*/
+  0x07,   /* bLength: Endpoint Descriptor size */
+  USB_ENDPOINT_DESCRIPTOR_TYPE,      /* bDescriptorType: Endpoint */
+  CDC_OUT_EP,                        /* bEndpointAddress */
+  0x02,                              /* bmAttributes: Bulk */
+  0x40,                              /* wMaxPacketSize: */
+  0x00,
+  0x00,                              /* bInterval: ignore for Bulk transfer */
+  
+  /*Endpoint IN Descriptor*/
+  0x07,   /* bLength: Endpoint Descriptor size */
+  USB_ENDPOINT_DESCRIPTOR_TYPE,     /* bDescriptorType: Endpoint */
+  CDC_IN_EP,                        /* bEndpointAddress */
+  0x02,                             /* bmAttributes: Bulk */
+  0x40,                             /* wMaxPacketSize: */
+  0x00,
+  0x00                              /* bInterval */
+};
+#endif /* USE_USB_OTG_HS  */
+
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_cdc_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @brief  usbd_cdc_Init
+  *         Initilaize the CDC interface
+  * @param  pdev: device instance
+  * @param  cfgidx: Configuration index
+  * @retval status
+  */
+static uint8_t  usbd_cdc_Init (void  *pdev, 
+                               uint8_t cfgidx)
+{
+  uint8_t *pbuf;
+
+  /* Open EP IN */
+  DCD_EP_Open(pdev,
+              CDC_IN_EP,
+              CDC_DATA_IN_PACKET_SIZE,
+              USB_OTG_EP_BULK);
+  
+  /* Open EP OUT */
+  DCD_EP_Open(pdev,
+              CDC_OUT_EP,
+              CDC_DATA_OUT_PACKET_SIZE,
+              USB_OTG_EP_BULK);
+  
+  /* Open Command IN EP */
+  DCD_EP_Open(pdev,
+              CDC_CMD_EP,
+              CDC_CMD_PACKET_SZE,
+              USB_OTG_EP_INT);
+  
+  pbuf = (uint8_t *)USBD_DeviceDesc;
+  pbuf[4] = DEVICE_CLASS_CDC;
+  pbuf[5] = DEVICE_SUBCLASS_CDC;
+  
+  /* Initialize the Interface physical components */
+  APP_FOPS.pIf_Init();
+
+  /* Prepare Out endpoint to receive next packet */
+  DCD_EP_PrepareRx(pdev,
+                   CDC_OUT_EP,
+                   (uint8_t*)(USB_Rx_Buffer),
+                   CDC_DATA_OUT_PACKET_SIZE);
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_cdc_Init
+  *         DeInitialize the CDC layer
+  * @param  pdev: device instance
+  * @param  cfgidx: Configuration index
+  * @retval status
+  */
+static uint8_t  usbd_cdc_DeInit (void  *pdev, 
+                                 uint8_t cfgidx)
+{
+  /* Open EP IN */
+  DCD_EP_Close(pdev,
+              CDC_IN_EP);
+  
+  /* Open EP OUT */
+  DCD_EP_Close(pdev,
+              CDC_OUT_EP);
+  
+  /* Open Command IN EP */
+  DCD_EP_Close(pdev,
+              CDC_CMD_EP);
+
+  /* Restore default state of the Interface physical components */
+  APP_FOPS.pIf_DeInit();
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_cdc_Setup
+  *         Handle the CDC specific requests
+  * @param  pdev: instance
+  * @param  req: usb requests
+  * @retval status
+  */
+static uint8_t  usbd_cdc_Setup (void  *pdev, 
+                                USB_SETUP_REQ *req)
+{
+  uint16_t len=USB_CDC_DESC_SIZ;
+  uint8_t  *pbuf=usbd_cdc_CfgDesc + 9;
+  
+  switch (req->bmRequest & USB_REQ_TYPE_MASK)
+  {
+    /* CDC Class Requests -------------------------------*/
+  case USB_REQ_TYPE_CLASS :
+      /* Check if the request is a data setup packet */
+      if (req->wLength)
+      {
+        /* Check if the request is Device-to-Host */
+        if (req->bmRequest & 0x80)
+        {
+          /* Get the data to be sent to Host from interface layer */
+          APP_FOPS.pIf_Ctrl(req->bRequest, CmdBuff, req->wLength);
+          
+          /* Send the data to the host */
+          USBD_CtlSendData (pdev, 
+                            CmdBuff,
+                            req->wLength);          
+        }
+        else /* Host-to-Device requeset */
+        {
+          /* Set the value of the current command to be processed */
+          cdcCmd = req->bRequest;
+          cdcLen = req->wLength;
+          
+          /* Prepare the reception of the buffer over EP0
+          Next step: the received data will be managed in usbd_cdc_EP0_TxSent() 
+          function. */
+          USBD_CtlPrepareRx (pdev,
+                             CmdBuff,
+                             req->wLength);          
+        }
+      }
+      else /* No Data request */
+      {
+        /* Transfer the command to the interface layer */
+        APP_FOPS.pIf_Ctrl(req->bRequest, NULL, 0);
+      }
+      
+      return USBD_OK;
+      
+    default:
+      USBD_CtlError (pdev, req);
+      return USBD_FAIL;
+    
+      
+      
+    /* Standard Requests -------------------------------*/
+  case USB_REQ_TYPE_STANDARD:
+    switch (req->bRequest)
+    {
+    case USB_REQ_GET_DESCRIPTOR: 
+      if( (req->wValue >> 8) == CDC_DESCRIPTOR_TYPE)
+      {
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+        pbuf = usbd_cdc_Desc;   
+#else
+        pbuf = usbd_cdc_CfgDesc + 9 + (9 * USBD_ITF_MAX_NUM);
+#endif 
+        len = MIN(USB_CDC_DESC_SIZ , req->wLength);
+      }
+      
+      USBD_CtlSendData (pdev, 
+                        pbuf,
+                        len);
+      break;
+      
+    case USB_REQ_GET_INTERFACE :
+      USBD_CtlSendData (pdev,
+                        (uint8_t *)&usbd_cdc_AltSet,
+                        1);
+      break;
+      
+    case USB_REQ_SET_INTERFACE :
+      if ((uint8_t)(req->wValue) < USBD_ITF_MAX_NUM)
+      {
+        usbd_cdc_AltSet = (uint8_t)(req->wValue);
+      }
+      else
+      {
+        /* Call the error management function (command will be nacked */
+        USBD_CtlError (pdev, req);
+      }
+      break;
+    }
+  }
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_cdc_EP0_RxReady
+  *         Data received on control endpoint
+  * @param  pdev: device device instance
+  * @retval status
+  */
+static uint8_t  usbd_cdc_EP0_RxReady (void  *pdev)
+{ 
+  if (cdcCmd != NO_CMD)
+  {
+    /* Process the data */
+    APP_FOPS.pIf_Ctrl(cdcCmd, CmdBuff, cdcLen);
+    
+    /* Reset the command variable to default value */
+    cdcCmd = NO_CMD;
+  }
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_DataIn
+  *         Data sent on non-control IN endpoint
+  * @param  pdev: device instance
+  * @param  epnum: endpoint number
+  * @retval status
+  */
+static uint8_t  usbd_cdc_DataIn (void *pdev, uint8_t epnum)
+{
+  uint16_t USB_Tx_ptr;
+  uint16_t USB_Tx_length;
+
+  if (USB_Tx_State == 1)
+  {
+    if (APP_Rx_length == 0) 
+    {
+      USB_Tx_State = 0;
+    }
+    else 
+    {
+      if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE){
+        USB_Tx_ptr = APP_Rx_ptr_out;
+        USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
+        
+        APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;
+        APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;    
+      }
+      else 
+      {
+        USB_Tx_ptr = APP_Rx_ptr_out;
+        USB_Tx_length = APP_Rx_length;
+        
+        APP_Rx_ptr_out += APP_Rx_length;
+        APP_Rx_length = 0;
+      }
+      
+      /* Prepare the available data buffer to be sent on IN endpoint */
+      DCD_EP_Tx (pdev,
+                 CDC_IN_EP,
+                 (uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
+                 USB_Tx_length);
+    }
+  }  
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_cdc_DataOut
+  *         Data received on non-control Out endpoint
+  * @param  pdev: device instance
+  * @param  epnum: endpoint number
+  * @retval status
+  */
+static uint8_t  usbd_cdc_DataOut (void *pdev, uint8_t epnum)
+{      
+  uint16_t USB_Rx_Cnt;
+  
+  /* Get the received data buffer and update the counter */
+  USB_Rx_Cnt = ((USB_OTG_CORE_HANDLE*)pdev)->dev.out_ep[epnum].xfer_count;
+  
+  /* USB data will be immediately processed, this allow next USB traffic being 
+     NAKed till the end of the application Xfer */
+  APP_FOPS.pIf_DataRx(USB_Rx_Buffer, USB_Rx_Cnt);
+  
+  /* Prepare Out endpoint to receive next packet */
+  DCD_EP_PrepareRx(pdev,
+                   CDC_OUT_EP,
+                   (uint8_t*)(USB_Rx_Buffer),
+                   CDC_DATA_OUT_PACKET_SIZE);
+
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_audio_SOF
+  *         Start Of Frame event management
+  * @param  pdev: instance
+  * @param  epnum: endpoint number
+  * @retval status
+  */
+static uint8_t  usbd_cdc_SOF (void *pdev)
+{      
+  static uint32_t FrameCount = 0;
+  
+  if (FrameCount++ == CDC_IN_FRAME_INTERVAL)
+  {
+    /* Reset the frame counter */
+    FrameCount = 0;
+    
+    /* Check the data to be sent through IN pipe */
+    Handle_USBAsynchXfer(pdev);
+  }
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  Handle_USBAsynchXfer
+  *         Send data to USB
+  * @param  pdev: instance
+  * @retval None
+  */
+static void Handle_USBAsynchXfer (void *pdev)
+{
+  uint16_t USB_Tx_ptr;
+  uint16_t USB_Tx_length;
+  
+  if(USB_Tx_State != 1)
+  {
+    if (APP_Rx_ptr_out == APP_RX_DATA_SIZE)
+    {
+      APP_Rx_ptr_out = 0;
+    }
+    
+    if(APP_Rx_ptr_out == APP_Rx_ptr_in) 
+    {
+      USB_Tx_State = 0; 
+      return;
+    }
+    
+    if(APP_Rx_ptr_out > APP_Rx_ptr_in) /* rollback */
+    { 
+      APP_Rx_length = APP_RX_DATA_SIZE - APP_Rx_ptr_out;
+    
+    }
+    else 
+    {
+      APP_Rx_length = APP_Rx_ptr_in - APP_Rx_ptr_out;
+     
+    }
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+     APP_Rx_length &= ~0x03;
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+    
+    if (APP_Rx_length > CDC_DATA_IN_PACKET_SIZE)
+    {
+      USB_Tx_ptr = APP_Rx_ptr_out;
+      USB_Tx_length = CDC_DATA_IN_PACKET_SIZE;
+      
+      APP_Rx_ptr_out += CDC_DATA_IN_PACKET_SIZE;	
+      APP_Rx_length -= CDC_DATA_IN_PACKET_SIZE;
+    }
+    else
+    {
+      USB_Tx_ptr = APP_Rx_ptr_out;
+      USB_Tx_length = APP_Rx_length;
+      
+      APP_Rx_ptr_out += APP_Rx_length;
+      APP_Rx_length = 0;
+    }
+    USB_Tx_State = 1; 
+
+    DCD_EP_Tx (pdev,
+               CDC_IN_EP,
+               (uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],
+               USB_Tx_length);
+  }  
+  
+}
+
+/**
+  * @brief  USBD_cdc_GetCfgDesc 
+  *         Return configuration descriptor
+  * @param  speed : current device speed
+  * @param  length : pointer data length
+  * @retval pointer to descriptor buffer
+  */
+static uint8_t  *USBD_cdc_GetCfgDesc (uint8_t speed, uint16_t *length)
+{
+  *length = sizeof (usbd_cdc_CfgDesc);
+  return usbd_cdc_CfgDesc;
+}
+
+/**
+  * @brief  USBD_cdc_GetCfgDesc 
+  *         Return configuration descriptor
+  * @param  speed : current device speed
+  * @param  length : pointer data length
+  * @retval pointer to descriptor buffer
+  */
+#ifdef USE_USB_OTG_HS 
+static uint8_t  *USBD_cdc_GetOtherCfgDesc (uint8_t speed, uint16_t *length)
+{
+  *length = sizeof (usbd_cdc_OtherCfgDesc);
+  return usbd_cdc_OtherCfgDesc;
+}
+#endif
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/cdc/src/usbd_cdc_if_template.c
@@ -1,0 +1,207 @@
+/**
+  ******************************************************************************
+  * @file    usbd_cdc_if_template.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Generic media access Layer.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED 
+#pragma     data_alignment = 4 
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_cdc_if_template.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* These are external variables imported from CDC core to be used for IN 
+   transfer management. */
+extern uint8_t  APP_Rx_Buffer []; /* Write CDC received data in this buffer.
+                                     These data will be sent over USB IN endpoint
+                                     in the CDC core functions. */
+extern uint32_t APP_Rx_ptr_in;    /* Increment this pointer or roll it back to
+                                     start address when writing received data
+                                     in the buffer APP_Rx_Buffer. */
+
+/* Private function prototypes -----------------------------------------------*/
+static uint16_t TEMPLATE_Init     (void);
+static uint16_t TEMPLATE_DeInit   (void);
+static uint16_t TEMPLATE_Ctrl     (uint32_t Cmd, uint8_t* Buf, uint32_t Len);
+static uint16_t TEMPLATE_DataTx   (uint8_t* Buf, uint32_t Len);
+static uint16_t TEMPLATE_DataRx (uint8_t* Buf, uint32_t Len);
+
+CDC_IF_Prop_TypeDef TEMPLATE_fops = 
+{
+  TEMPLATE_Init,
+  TEMPLATE_DeInit,
+  TEMPLATE_Ctrl,
+  TEMPLATE_DataTx,
+  TEMPLATE_DataRx
+};
+
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  TEMPLATE_Init
+  *         Initializes the CDC media low layer
+  * @param  None
+  * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+  */
+static uint16_t TEMPLATE_Init(void)
+{
+  /*
+     Add your initialization code here 
+  */  
+  return USBD_OK;
+}
+
+/**
+  * @brief  TEMPLATE_DeInit
+  *         DeInitializes the CDC media low layer
+  * @param  None
+  * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+  */
+static uint16_t TEMPLATE_DeInit(void)
+{
+  /*
+     Add your deinitialization code here 
+  */  
+  return USBD_OK;
+}
+
+
+/**
+  * @brief  TEMPLATE_Ctrl
+  *         Manage the CDC class requests
+  * @param  Cmd: Command code            
+  * @param  Buf: Buffer containing command data (request parameters)
+  * @param  Len: Number of data to be sent (in bytes)
+  * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+  */
+static uint16_t TEMPLATE_Ctrl (uint32_t Cmd, uint8_t* Buf, uint32_t Len)
+{ 
+  switch (Cmd)
+  {
+  case SEND_ENCAPSULATED_COMMAND:
+    /* Add your code here */
+    break;
+
+  case GET_ENCAPSULATED_RESPONSE:
+    /* Add your code here */
+    break;
+
+  case SET_COMM_FEATURE:
+    /* Add your code here */
+    break;
+
+  case GET_COMM_FEATURE:
+    /* Add your code here */
+    break;
+
+  case CLEAR_COMM_FEATURE:
+    /* Add your code here */
+    break;
+
+  case SET_LINE_CODING:
+    /* Add your code here */
+    break;
+
+  case GET_LINE_CODING:
+    /* Add your code here */
+    break;
+
+  case SET_CONTROL_LINE_STATE:
+    /* Add your code here */
+    break;
+
+  case SEND_BREAK:
+     /* Add your code here */
+    break;    
+    
+  default:
+    break;
+  }
+
+  return USBD_OK;
+}
+
+/**
+  * @brief  TEMPLATE_DataTx
+  *         CDC received data to be send over USB IN endpoint are managed in 
+  *         this function.
+  * @param  Buf: Buffer of data to be sent
+  * @param  Len: Number of data to be sent (in bytes)
+  * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+  */
+static uint16_t TEMPLATE_DataTx (uint8_t* Buf, uint32_t Len)
+{
+
+  /* Get the data to be sent */
+  for (i = 0; i < Len; i++)
+  {
+    /* APP_Rx_Buffer[APP_Rx_ptr_in] = XXX_ReceiveData(XXX); */
+  }
+
+  /* Increment the in pointer */
+  APP_Rx_ptr_in++;
+  
+  /* To avoid buffer overflow */
+  if(APP_Rx_ptr_in == APP_RX_DATA_SIZE)
+  {
+    APP_Rx_ptr_in = 0;
+  }  
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  TEMPLATE_DataRx
+  *         Data received over USB OUT endpoint are sent over CDC interface 
+  *         through this function.
+  *           
+  *         @note
+  *         This function will block any OUT packet reception on USB endpoint 
+  *         untill exiting this function. If you exit this function before transfer
+  *         is complete on CDC interface (ie. using DMA controller) it will result 
+  *         in receiving more data while previous ones are still not sent.
+  *                 
+  * @param  Buf: Buffer of data to be received
+  * @param  Len: Number of data received (in bytes)
+  * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+  */
+static uint16_t TEMPLATE_DataRx (uint8_t* Buf, uint32_t Len)
+{
+  uint32_t i;
+  
+  /* Send the received buffer */
+  for (i = 0; i < Len; i++)
+  {
+    /* XXXX_SendData(XXXX, *(Buf + i) ); */
+  } 
+ 
+  return USBD_OK;
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/inc/usbd_dfu_core.h
@@ -1,0 +1,193 @@
+/**
+  ******************************************************************************
+  * @file    usbd_dfu_core.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header file for the usbd_dfu_core.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+
+#ifndef __USB_DFU_CORE_H_
+#define __USB_DFU_CORE_H_
+
+#include  "usbd_ioreq.h"
+#include  "usbd_dfu_mal.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup usbd_dfu
+  * @brief This file is the Header file for USBD_dfu.c
+  * @{
+  */ 
+
+
+/** @defgroup usbd_dfu_Exported_Defines
+  * @{
+  */ 
+#define USB_DFU_CONFIG_DESC_SIZ       (18 + (9 * USBD_ITF_MAX_NUM))
+#define USB_DFU_DESC_SIZ              9
+
+#define DFU_DESCRIPTOR_TYPE           0x21
+
+
+/*---------------------------------------------------------------------*/
+/*  DFU definitions                                                    */
+/*---------------------------------------------------------------------*/
+
+
+
+/**************************************************/
+/* DFU Requests  DFU states                       */
+/**************************************************/
+
+
+#define STATE_appIDLE                 0
+#define STATE_appDETACH               1
+#define STATE_dfuIDLE                 2
+#define STATE_dfuDNLOAD_SYNC          3
+#define STATE_dfuDNBUSY               4
+#define STATE_dfuDNLOAD_IDLE          5
+#define STATE_dfuMANIFEST_SYNC        6
+#define STATE_dfuMANIFEST             7
+#define STATE_dfuMANIFEST_WAIT_RESET  8
+#define STATE_dfuUPLOAD_IDLE          9
+#define STATE_dfuERROR                10
+
+/**************************************************/
+/* DFU Requests  DFU status                       */
+/**************************************************/
+
+#define STATUS_OK                   0x00
+#define STATUS_ERRTARGET            0x01
+#define STATUS_ERRFILE              0x02
+#define STATUS_ERRWRITE             0x03
+#define STATUS_ERRERASE             0x04
+#define STATUS_ERRCHECK_ERASED      0x05
+#define STATUS_ERRPROG              0x06
+#define STATUS_ERRVERIFY            0x07
+#define STATUS_ERRADDRESS           0x08
+#define STATUS_ERRNOTDONE           0x09
+#define STATUS_ERRFIRMWARE          0x0A
+#define STATUS_ERRVENDOR            0x0B
+#define STATUS_ERRUSBR              0x0C
+#define STATUS_ERRPOR               0x0D
+#define STATUS_ERRUNKNOWN           0x0E
+#define STATUS_ERRSTALLEDPKT        0x0F
+
+/**************************************************/
+/* DFU Requests  DFU states Manifestation State   */
+/**************************************************/
+
+#define Manifest_complete           0x00
+#define Manifest_In_Progress        0x01
+
+
+/**************************************************/
+/* Special Commands  with Download Request        */
+/**************************************************/
+
+#define CMD_GETCOMMANDS              0x00
+#define CMD_SETADDRESSPOINTER        0x21
+#define CMD_ERASE                    0x41
+
+/**************************************************/
+/* Other defines                                  */
+/**************************************************/
+/* Bit Detach capable = bit 3 in bmAttributes field */
+#define DFU_DETACH_MASK              (uint8_t)(1 << 4) 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_TypesDefinitions
+  * @{
+  */
+/**************************************************/
+/* DFU Requests                                   */
+/**************************************************/
+
+typedef enum _DFU_REQUESTS {
+  DFU_DETACH = 0,
+  DFU_DNLOAD = 1,
+  DFU_UPLOAD,
+  DFU_GETSTATUS,
+  DFU_CLRSTATUS,
+  DFU_GETSTATE,
+  DFU_ABORT
+} DFU_REQUESTS;
+
+typedef  void (*pFunction)(void);
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_CORE_Exported_Macros
+  * @{
+  */ 
+/**********  Descriptor of DFU interface 0 Alternate setting n ****************/  
+#define USBD_DFU_IF_DESC(n)   0x09,   /* bLength: Interface Descriptor size */ \
+                              USB_INTERFACE_DESCRIPTOR_TYPE,   /* bDescriptorType */ \
+                              0x00,   /* bInterfaceNumber: Number of Interface */ \
+                              (n),      /* bAlternateSetting: Alternate setting */ \
+                              0x00,   /* bNumEndpoints*/ \
+                              0xFE,   /* bInterfaceClass: Application Specific Class Code */ \
+                              0x01,   /* bInterfaceSubClass : Device Firmware Upgrade Code */ \
+                              0x02,   /* nInterfaceProtocol: DFU mode protocol */ \
+                              USBD_IDX_INTERFACE_STR + (n) + 1 /* iInterface: Index of string descriptor */ \
+                              /* 18 */
+  
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_Variables
+  * @{
+  */ 
+
+extern USBD_Class_cb_TypeDef  DFU_cb;
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_Functions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+#endif  // __USB_DFU_CORE_H_
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+  
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/inc/usbd_dfu_mal.h
@@ -1,0 +1,81 @@
+/**
+  ******************************************************************************
+  * @file    usbd_dfu_mal.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Header for usbd_dfu_mal.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __DFU_MAL_H
+#define __DFU_MAL_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+
+#include "usbd_conf.h"
+#include "usbd_dfu_core.h"
+
+/* Exported types ------------------------------------------------------------*/
+typedef struct _DFU_MAL_PROP
+{
+  const uint8_t* pStrDesc;
+  uint16_t (*pMAL_Init)     (void);   
+  uint16_t (*pMAL_DeInit)   (void);   
+  uint16_t (*pMAL_Erase)    (uint32_t Add);
+  uint16_t (*pMAL_Write)    (uint32_t Add, uint32_t Len);
+  uint8_t  *(*pMAL_Read)    (uint32_t Add, uint32_t Len);
+  uint16_t (*pMAL_CheckAdd) (uint32_t Add);
+  const uint32_t EraseTiming;
+  const uint32_t WriteTiming;
+}
+DFU_MAL_Prop_TypeDef;
+
+
+/* Exported constants --------------------------------------------------------*/
+#define MAL_OK                          0
+#define MAL_FAIL                        1
+
+/* utils macro ---------------------------------------------------------------*/
+#define _1st_BYTE(x)  (uint8_t)((x)&0xFF)             /* 1st addressing cycle */
+#define _2nd_BYTE(x)  (uint8_t)(((x)&0xFF00)>>8)      /* 2nd addressing cycle */
+#define _3rd_BYTE(x)  (uint8_t)(((x)&0xFF0000)>>16)   /* 3rd addressing cycle */
+#define _4th_BYTE(x)  (uint8_t)(((x)&0xFF000000)>>24) /* 4th addressing cycle */
+
+/* Exported macro ------------------------------------------------------------*/
+#define SET_POLLING_TIMING(x)   buffer[1] = _1st_BYTE(x);\
+                                buffer[2] = _2nd_BYTE(x);\
+                                buffer[3] = _3rd_BYTE(x);  
+
+/* Exported functions ------------------------------------------------------- */
+
+uint16_t MAL_Init (void);
+uint16_t MAL_DeInit (void);
+uint16_t MAL_Erase (uint32_t SectorAddress);
+uint16_t MAL_Write (uint32_t SectorAddress, uint32_t DataLength);
+uint8_t *MAL_Read  (uint32_t SectorAddress, uint32_t DataLength);
+uint16_t MAL_GetStatus(uint32_t SectorAddress ,uint8_t Cmd, uint8_t *buffer);
+
+extern uint8_t  MAL_Buffer[XFERSIZE]; /* RAM Buffer for Downloaded Data */
+#endif /* __DFU_MAL_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/inc/usbd_flash_if.h
@@ -1,0 +1,58 @@
+/**
+  ******************************************************************************
+  * @file    usbd_flash_if.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Header for usbd_flash_if.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __FLASH_IF_MAL_H
+#define __FLASH_IF_MAL_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_dfu_mal.h"
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+#define FLASH_START_ADD                  0x08000000
+
+#ifdef STM32F2XX
+ #define FLASH_END_ADD                   0x08100000
+ #define FLASH_IF_STRING                 "@Internal Flash   /0x08000000/03*016Ka,01*016Kg,01*064Kg,07*128Kg"
+#elif defined(STM32F4XX)
+ #define FLASH_END_ADD                   0x08100000
+ #define FLASH_IF_STRING                 "@Internal Flash   /0x08000000/03*016Ka,01*016Kg,01*064Kg,07*128Kg"
+#elif defined(STM32F10X_CL)
+ #define FLASH_END_ADD                   0x08040000
+ #define FLASH_IF_STRING                 "@Internal Flash   /0x08000000/06*002Ka,122*002Kg"  
+#endif /* STM32F2XX */
+
+
+extern DFU_MAL_Prop_TypeDef DFU_Flash_cb;
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+
+#endif /* __FLASH_IF_MAL_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/inc/usbd_mem_if_template.h
@@ -1,0 +1,51 @@
+/**
+  ******************************************************************************
+  * @file    usbd_mem_if_template.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Header for usbd_mem_if_template.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __MEM_IF_MAL_H
+#define __MEM_IF_MAL_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+
+#include "usbd_dfu_mal.h"
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+#define MEM_START_ADD                 0x00000000 /* Dummy start address */
+#define MEM_END_ADD                   (uint32_t)(MEM_START_ADD + (5 * 1024)) /* Dummy Size = 5KB */
+
+#define MEM_IF_STRING                 "@Dummy Memory   /0x00000000/01*002Kg,03*001Kg"
+
+extern DFU_MAL_Prop_TypeDef DFU_Mem_cb;
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+
+#endif /* __MEM_IF_MAL_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/inc/usbd_otp_if.h
@@ -1,0 +1,49 @@
+/**
+  ******************************************************************************
+  * @file    usbd_otp_if.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Header for usbd_otp_if.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __OTP_IF_MAL_H
+#define __OTP_IF_MAL_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_dfu_mal.h"
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+#define OTP_START_ADD                  0x1FFF7800             
+#define OTP_END_ADD                    (uint32_t)(OTP_START_ADD + 528) 
+
+#define OTP_IF_STRING                  "@OTP Area   /0x1FFF7800/01*512 g,01*016 g"
+
+extern DFU_MAL_Prop_TypeDef DFU_Otp_cb;
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+
+#endif /* __OTP_IF_MAL_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/src/usbd_dfu_core.c
@@ -1,0 +1,1052 @@
+/**
+  ******************************************************************************
+  * @file    usbd_dfu_core.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides the high layer firmware functions to manage the 
+  *          following functionalities of the USB DFU Class:
+  *           - Initialization and Configuration of high and low layer
+  *           - Enumeration as DFU Device (and enumeration for each implemented memory interface)
+  *           - Transfers to/from memory interfaces
+  *           - Easy-to-customize "plug-in-like" modules for adding/removing memory interfaces.
+  *           - Error management
+  *           
+  *  @verbatim
+  *      
+  *          ===================================================================      
+  *                                DFU Class Driver Description
+  *          =================================================================== 
+  *           This driver manages the DFU class V1.1 following the "Device Class Specification for 
+  *           Device Firmware Upgrade Version 1.1 Aug 5, 2004".
+  *           This driver implements the following aspects of the specification:
+  *             - Device descriptor management
+  *             - Configuration descriptor management
+  *             - Enumeration as DFU device (in DFU mode only)
+  *             - Requests management (supporting ST DFU sub-protocol)
+  *             - Memory operations management (Download/Upload/Erase/Detach/GetState/GetStatus)
+  *             - DFU state machine implementation.
+  *          
+  *           @note
+  *            ST DFU sub-protocol is compliant with DFU protocol and use sub-requests to manage
+  *            memory addressing, commands processing, specific memories operations (ie. Erase) ...
+  *            As required by the DFU specification, only endpoint 0 is used in this application.
+  *            Other endpoints and functions may be added to the application (ie. DFU ...)
+  * 
+  *           These aspects may be enriched or modified for a specific user application.
+  *          
+  *           This driver doesn't implement the following aspects of the specification 
+  *           (but it is possible to manage these features with some modifications on this driver):
+  *             - Manifestation Tolerant mode
+  *      
+  *  @endverbatim
+  *                                  
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_dfu_core.h"
+#include "usbd_desc.h"
+#include "usbd_req.h"
+#include "usb_bsp.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup usbd_dfu 
+  * @brief usbd core module
+  * @{
+  */ 
+
+/** @defgroup usbd_dfu_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_dfu_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_dfu_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup usbd_dfu_Private_FunctionPrototypes
+  * @{
+  */
+
+/*********************************************
+   DFU Device library callbacks
+ *********************************************/
+static uint8_t  usbd_dfu_Init     (void  *pdev, 
+                                  uint8_t cfgidx);
+
+static uint8_t  usbd_dfu_DeInit   (void  *pdev, 
+                                  uint8_t cfgidx);
+
+static uint8_t  usbd_dfu_Setup    (void  *pdev, 
+                                  USB_SETUP_REQ *req);
+
+static uint8_t  EP0_TxSent        (void  *pdev);
+
+static uint8_t  EP0_RxReady       (void  *pdev);
+
+
+static uint8_t  *USBD_DFU_GetCfgDesc (uint8_t speed, 
+                                      uint16_t *length);
+
+
+#ifdef USB_OTG_HS_CORE
+static uint8_t  *USBD_DFU_GetOtherCfgDesc (uint8_t speed, 
+                                      uint16_t *length);
+#endif
+
+static uint8_t* USBD_DFU_GetUsrStringDesc (uint8_t speed, 
+                                           uint8_t index ,
+                                           uint16_t *length);
+
+/*********************************************
+   DFU Requests management functions
+ *********************************************/
+static void DFU_Req_DETACH    (void *pdev, 
+                               USB_SETUP_REQ *req);
+
+static void DFU_Req_DNLOAD    (void *pdev,
+                               USB_SETUP_REQ *req);
+
+static void DFU_Req_UPLOAD    (void *pdev,
+                               USB_SETUP_REQ *req);
+
+static void DFU_Req_GETSTATUS (void *pdev);
+
+static void DFU_Req_CLRSTATUS (void *pdev);
+
+static void DFU_Req_GETSTATE  (void *pdev);
+
+static void DFU_Req_ABORT     (void *pdev);
+
+static void DFU_LeaveDFUMode  (void *pdev); 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_dfu_Private_Variables
+  * @{
+  */ 
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t usbd_dfu_CfgDesc[USB_DFU_CONFIG_DESC_SIZ] __ALIGN_END ;
+
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t usbd_dfu_OtherCfgDesc[USB_DFU_CONFIG_DESC_SIZ] __ALIGN_END ;
+
+/* The list of Interface String descriptor pointers is defined in usbd_dfu_mal.c 
+  file. This list can be updated whenever a memory has to be added or removed */
+extern const uint8_t* usbd_dfu_StringDesc[];
+
+/* State Machine variables */
+uint8_t DeviceState;
+uint8_t DeviceStatus[6];
+uint32_t Manifest_State = Manifest_complete;
+/* Data Management variables */
+static uint32_t wBlockNum = 0, wlength = 0;
+static uint32_t Pointer = APP_DEFAULT_ADD;  /* Base Address to Erase, Program or Read */
+static __IO uint32_t  usbd_dfu_AltSet = 0;
+
+extern uint8_t MAL_Buffer[];
+
+/* DFU interface class callbacks structure */
+USBD_Class_cb_TypeDef  DFU_cb = 
+{
+  usbd_dfu_Init,
+  usbd_dfu_DeInit,
+  usbd_dfu_Setup,
+  EP0_TxSent,
+  EP0_RxReady,
+  NULL, /* DataIn, */
+  NULL, /* DataOut, */
+  NULL, /*SOF */
+  NULL,
+  NULL,     
+  USBD_DFU_GetCfgDesc,
+#ifdef USB_OTG_HS_CORE  
+  USBD_DFU_GetOtherCfgDesc, /* use same cobfig as per FS */
+#endif  
+  USBD_DFU_GetUsrStringDesc,
+};
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+/* USB DFU device Configuration Descriptor */
+__ALIGN_BEGIN uint8_t usbd_dfu_CfgDesc[USB_DFU_CONFIG_DESC_SIZ] __ALIGN_END =
+{
+  0x09, /* bLength: Configuation Descriptor size */
+  USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType: Configuration */
+  USB_DFU_CONFIG_DESC_SIZ,
+  /* wTotalLength: Bytes returned */
+  0x00,
+  0x01,         /*bNumInterfaces: 1 interface*/
+  0x01,         /*bConfigurationValue: Configuration value*/
+  0x02,         /*iConfiguration: Index of string descriptor describing the configuration*/
+  0xC0,         /*bmAttributes: bus powered and Supprts Remote Wakeup */
+  0x32,         /*MaxPower 100 mA: this current is used for detecting Vbus*/
+  /* 09 */
+  
+  /**********  Descriptor of DFU interface 0 Alternate setting 0 **************/  
+  USBD_DFU_IF_DESC(0), /* This interface is mandatory for all devices */
+  
+#if (USBD_ITF_MAX_NUM > 1)
+  /**********  Descriptor of DFU interface 0 Alternate setting 1 **************/ 
+  USBD_DFU_IF_DESC(1),
+#endif /* (USBD_ITF_MAX_NUM > 1) */
+
+#if (USBD_ITF_MAX_NUM > 2)
+  /**********  Descriptor of DFU interface 0 Alternate setting 2 **************/ 
+  USBD_DFU_IF_DESC(2),
+#endif /* (USBD_ITF_MAX_NUM > 2) */
+
+#if (USBD_ITF_MAX_NUM > 3)
+  /**********  Descriptor of DFU interface 0 Alternate setting 3 **************/ 
+  USBD_DFU_IF_DESC(3),
+#endif /* (USBD_ITF_MAX_NUM > 3) */
+
+#if (USBD_ITF_MAX_NUM > 4)
+  /**********  Descriptor of DFU interface 0 Alternate setting 4 **************/ 
+  USBD_DFU_IF_DESC(4),
+#endif /* (USBD_ITF_MAX_NUM > 4) */
+
+#if (USBD_ITF_MAX_NUM > 5)
+  /**********  Descriptor of DFU interface 0 Alternate setting 5 **************/ 
+  USBD_DFU_IF_DESC(5),
+#endif /* (USBD_ITF_MAX_NUM > 5) */
+
+#if (USBD_ITF_MAX_NUM > 6)
+#error "ERROR: usbd_dfu_core.c: Modify the file to support more descriptors!"
+#endif /* (USBD_ITF_MAX_NUM > 6) */
+
+  /******************** DFU Functional Descriptor********************/
+  0x09,   /*blength = 9 Bytes*/
+  DFU_DESCRIPTOR_TYPE,   /* DFU Functional Descriptor*/
+  0x0B,   /*bmAttribute
+                bitCanDnload             = 1      (bit 0)
+                bitCanUpload             = 1      (bit 1)
+                bitManifestationTolerant = 0      (bit 2)
+                bitWillDetach            = 1      (bit 3)
+                Reserved                          (bit4-6)
+                bitAcceleratedST         = 0      (bit 7)*/
+  0xFF,   /*DetachTimeOut= 255 ms*/
+  0x00,
+  /*WARNING: In DMA mode the multiple MPS packets feature is still not supported
+   ==> In this case, when using DMA XFERSIZE should be set to 64 in usbd_conf.h */
+  TRANSFER_SIZE_BYTES(XFERSIZE),       /* TransferSize = 1024 Byte*/         
+  0x1A,                                /* bcdDFUVersion*/
+  0x01
+  /***********************************************************/
+  /* 9*/
+} ;
+
+#ifdef USE_USB_OTG_HS
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+
+__ALIGN_BEGIN uint8_t usbd_dfu_OtherCfgDesc[USB_DFU_CONFIG_DESC_SIZ] __ALIGN_END =
+{
+  0x09, /* bLength: Configuation Descriptor size */
+  USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION, /* bDescriptorType: Configuration */
+  USB_DFU_CONFIG_DESC_SIZ,
+  /* wTotalLength: Bytes returned */
+  0x00,
+  0x01,         /*bNumInterfaces: 1 interface*/
+  0x01,         /*bConfigurationValue: Configuration value*/
+  0x02,         /*iConfiguration: Index of string descriptor describing the configuration*/
+  0xC0,         /*bmAttributes: bus powered and Supprts Remote Wakeup */
+  0x32,         /*MaxPower 100 mA: this current is used for detecting Vbus*/
+  /* 09 */
+  
+  /**********  Descriptor of DFU interface 0 Alternate setting 0 **************/  
+  USBD_DFU_IF_DESC(0), /* This interface is mandatory for all devices */
+  
+#if (USBD_ITF_MAX_NUM > 1)
+  /**********  Descriptor of DFU interface 0 Alternate setting 1 **************/ 
+  USBD_DFU_IF_DESC(1),
+#endif /* (USBD_ITF_MAX_NUM > 1) */
+
+#if (USBD_ITF_MAX_NUM > 2)
+  /**********  Descriptor of DFU interface 0 Alternate setting 2 **************/ 
+  USBD_DFU_IF_DESC(2),
+#endif /* (USBD_ITF_MAX_NUM > 2) */
+
+#if (USBD_ITF_MAX_NUM > 3)
+  /**********  Descriptor of DFU interface 0 Alternate setting 3 **************/ 
+  USBD_DFU_IF_DESC(3),
+#endif /* (USBD_ITF_MAX_NUM > 3) */
+
+#if (USBD_ITF_MAX_NUM > 4)
+  /**********  Descriptor of DFU interface 0 Alternate setting 4 **************/ 
+  USBD_DFU_IF_DESC(4),
+#endif /* (USBD_ITF_MAX_NUM > 4) */
+
+#if (USBD_ITF_MAX_NUM > 5)
+  /**********  Descriptor of DFU interface 0 Alternate setting 5 **************/ 
+  USBD_DFU_IF_DESC(5),
+#endif /* (USBD_ITF_MAX_NUM > 5) */
+
+#if (USBD_ITF_MAX_NUM > 6)
+#error "ERROR: usbd_dfu_core.c: Modify the file to support more descriptors!"
+#endif /* (USBD_ITF_MAX_NUM > 6) */
+
+  /******************** DFU Functional Descriptor********************/
+  0x09,   /*blength = 9 Bytes*/
+  DFU_DESCRIPTOR_TYPE,   /* DFU Functional Descriptor*/
+  0x0B,   /*bmAttribute
+                bitCanDnload             = 1      (bit 0)
+                bitCanUpload             = 1      (bit 1)
+                bitManifestationTolerant = 0      (bit 2)
+                bitWillDetach            = 1      (bit 3)
+                Reserved                          (bit4-6)
+                bitAcceleratedST         = 0      (bit 7)*/
+  0xFF,   /*DetachTimeOut= 255 ms*/
+  0x00,
+  /*WARNING: In DMA mode the multiple MPS packets feature is still not supported
+   ==> In this case, when using DMA XFERSIZE should be set to 64 in usbd_conf.h */
+  TRANSFER_SIZE_BYTES(XFERSIZE),       /* TransferSize = 1024 Byte*/         
+  0x1A,                                /* bcdDFUVersion*/
+  0x01
+  /***********************************************************/
+  /* 9*/
+};
+#endif /* USE_USB_OTG_HS */
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+
+__ALIGN_BEGIN static uint8_t usbd_dfu_Desc[USB_DFU_DESC_SIZ] __ALIGN_END =
+{
+  0x09,   /*blength = 9 Bytes*/
+  DFU_DESCRIPTOR_TYPE,   /* DFU Functional Descriptor*/
+  0x0B,   /*bmAttribute
+                bitCanDnload             = 1      (bit 0)
+                bitCanUpload             = 1      (bit 1)
+                bitManifestationTolerant = 0      (bit 2)
+                bitWillDetach            = 1      (bit 3)
+                Reserved                          (bit4-6)
+                bitAcceleratedST         = 0      (bit 7)*/
+  0xFF,   /*DetachTimeOut= 255 ms*/
+  0x00,
+  /*WARNING: In DMA mode the multiple MPS packets feature is still not supported
+   ==> In this case, when using DMA XFERSIZE should be set to 64 in usbd_conf.h */
+  TRANSFER_SIZE_BYTES(XFERSIZE),  /* TransferSize = 1024 Byte*/
+  0x1A,                     /* bcdDFUVersion*/
+  0x01
+};
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+
+/**
+  * @}
+  */ 
+
+/** @defgroup usbd_dfu_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @brief  usbd_dfu_Init
+  *         Initializes the DFU interface.
+  * @param  pdev: device instance
+  * @param  cfgidx: Configuration index
+  * @retval status
+  */
+static uint8_t  usbd_dfu_Init (void  *pdev, 
+                               uint8_t cfgidx)
+{
+  /* Initilialize the MAL(Media Access Layer) */
+  MAL_Init();
+  
+  /* Initialize the state of the DFU interface */
+  DeviceState = STATE_dfuIDLE;
+  DeviceStatus[0] = STATUS_OK;
+  DeviceStatus[4] = DeviceState;
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_dfu_Init
+  *         De-initializes the DFU layer.
+  * @param  pdev: device instance
+  * @param  cfgidx: Configuration index
+  * @retval status
+  */
+static uint8_t  usbd_dfu_DeInit (void  *pdev, 
+                                 uint8_t cfgidx)
+{
+  /* Restore default state */
+  DeviceState = STATE_dfuIDLE;
+  DeviceStatus[0] = STATUS_OK;
+  DeviceStatus[4] = DeviceState;
+  wBlockNum = 0;
+  wlength = 0;
+
+  /* DeInitilialize the MAL(Media Access Layer) */
+  MAL_DeInit();
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  usbd_dfu_Setup
+  *         Handles the DFU request parsing.
+  * @param  pdev: instance
+  * @param  req: usb requests
+  * @retval status
+  */
+static uint8_t  usbd_dfu_Setup (void  *pdev, 
+                                USB_SETUP_REQ *req)
+{
+  uint16_t len = 0;
+  uint8_t  *pbuf = NULL;
+  
+  switch (req->bmRequest & USB_REQ_TYPE_MASK)
+  {
+    /* DFU Class Requests -------------------------------*/
+  case USB_REQ_TYPE_CLASS :  
+    switch (req->bRequest)
+    {
+    case DFU_DNLOAD:
+      DFU_Req_DNLOAD(pdev, req);
+      break;
+      
+    case DFU_UPLOAD:
+      DFU_Req_UPLOAD(pdev, req);   
+      break;
+      
+    case DFU_GETSTATUS:
+      DFU_Req_GETSTATUS(pdev);
+      break;
+      
+    case DFU_CLRSTATUS:
+      DFU_Req_CLRSTATUS(pdev);
+      break;      
+
+    case DFU_GETSTATE:
+      DFU_Req_GETSTATE(pdev);
+      break;  
+
+    case DFU_ABORT:
+      DFU_Req_ABORT(pdev);
+      break;
+
+    case DFU_DETACH:
+      DFU_Req_DETACH(pdev, req);
+      break;
+
+    default:
+      USBD_CtlError (pdev, req);
+      return USBD_FAIL;
+    }
+    break;
+    
+    /* Standard Requests -------------------------------*/
+  case USB_REQ_TYPE_STANDARD:
+    switch (req->bRequest)
+    {
+    case USB_REQ_GET_DESCRIPTOR: 
+      if( (req->wValue >> 8) == DFU_DESCRIPTOR_TYPE)
+      {
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+        pbuf = usbd_dfu_Desc;   
+#else
+        pbuf = usbd_dfu_CfgDesc + 9 + (9 * USBD_ITF_MAX_NUM);
+#endif 
+        len = MIN(USB_DFU_DESC_SIZ , req->wLength);
+      }
+      
+      USBD_CtlSendData (pdev, 
+                        pbuf,
+                        len);
+      break;
+      
+    case USB_REQ_GET_INTERFACE :
+      USBD_CtlSendData (pdev,
+                        (uint8_t *)&usbd_dfu_AltSet,
+                        1);
+      break;
+      
+    case USB_REQ_SET_INTERFACE :
+      if ((uint8_t)(req->wValue) < USBD_ITF_MAX_NUM)
+      {
+        usbd_dfu_AltSet = (uint8_t)(req->wValue);
+      }
+      else
+      {
+        /* Call the error management function (command will be nacked */
+        USBD_CtlError (pdev, req);
+      }
+      break;
+    }
+  }
+  return USBD_OK;
+}
+
+/**
+  * @brief  EP0_TxSent
+  *         Handles the DFU control endpoint data IN stage.
+  * @param  pdev: device instance
+  * @retval status
+  */
+static uint8_t  EP0_TxSent (void  *pdev)
+{
+  uint32_t Addr;
+  USB_SETUP_REQ req;  
+  
+  if (DeviceState == STATE_dfuDNBUSY)
+  {
+    /* Decode the Special Command*/
+    if (wBlockNum == 0)   
+    {
+      if ((MAL_Buffer[0] ==  CMD_GETCOMMANDS) && (wlength == 1))
+      {}
+      else if  (( MAL_Buffer[0] ==  CMD_SETADDRESSPOINTER ) && (wlength == 5))
+      {
+        Pointer  = MAL_Buffer[1];
+        Pointer += MAL_Buffer[2] << 8;
+        Pointer += MAL_Buffer[3] << 16;
+        Pointer += MAL_Buffer[4] << 24;
+      }
+      else if (( MAL_Buffer[0] ==  CMD_ERASE ) && (wlength == 5))
+      {
+        Pointer  = MAL_Buffer[1];
+        Pointer += MAL_Buffer[2] << 8;
+        Pointer += MAL_Buffer[3] << 16;
+        Pointer += MAL_Buffer[4] << 24;
+        MAL_Erase(Pointer);
+      }
+      else
+      {
+        /* Reset the global length and block number */
+        wlength = 0;
+        wBlockNum = 0;     
+        /* Call the error management function (command will be nacked) */
+        req.bmRequest = 0;
+        req.wLength = 1;
+        USBD_CtlError (pdev, &req);
+      }
+    }
+    /* Regular Download Command */
+    else if (wBlockNum > 1)  
+    {
+      /* Decode the required address */
+      Addr = ((wBlockNum - 2) * XFERSIZE) + Pointer;
+      
+      /* Preform the write operation */
+      MAL_Write(Addr, wlength);
+    }
+    /* Reset the global lenght and block number */
+    wlength = 0;
+    wBlockNum = 0;
+    
+    /* Update the state machine */
+    DeviceState =  STATE_dfuDNLOAD_SYNC;
+    DeviceStatus[4] = DeviceState;
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0;
+    return USBD_OK;
+  }
+  else if (DeviceState == STATE_dfuMANIFEST)/* Manifestation in progress*/
+  {
+    /* Start leaving DFU mode */
+    DFU_LeaveDFUMode(pdev);
+  }
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  EP0_RxReady
+  *         Handles the DFU control endpoint data OUT stage.
+  * @param  pdev: device instance
+  * @retval status
+  */
+static uint8_t  EP0_RxReady (void  *pdev)
+{ 
+  return USBD_OK;
+}
+
+
+/******************************************************************************
+     DFU Class requests management
+******************************************************************************/
+/**
+  * @brief  DFU_Req_DETACH
+  *         Handles the DFU DETACH request.
+  * @param  pdev: device instance
+  * @param  req: pointer to the request structure.
+  * @retval None.
+  */
+static void DFU_Req_DETACH(void *pdev, USB_SETUP_REQ *req)
+{
+  if (DeviceState == STATE_dfuIDLE || DeviceState == STATE_dfuDNLOAD_SYNC
+      || DeviceState == STATE_dfuDNLOAD_IDLE || DeviceState == STATE_dfuMANIFEST_SYNC
+        || DeviceState == STATE_dfuUPLOAD_IDLE )
+  {
+    /* Update the state machine */
+    DeviceState = STATE_dfuIDLE;
+    DeviceStatus[0] = STATUS_OK;
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0; /*bwPollTimeout=0ms*/
+    DeviceStatus[4] = DeviceState;
+    DeviceStatus[5] = 0; /*iString*/
+    wBlockNum = 0;
+    wlength = 0;
+  } 
+  
+  /* Check the detach capability in the DFU functional descriptor */
+  if ((usbd_dfu_CfgDesc[12 + (9 * USBD_ITF_MAX_NUM)]) & DFU_DETACH_MASK)
+  {
+    /* Perform an Attach-Detach operation on USB bus */
+    DCD_DevDisconnect (pdev);
+    DCD_DevConnect (pdev);  
+  }
+  else
+  {
+    /* Wait for the period of time specified in Detach request */
+    USB_OTG_BSP_mDelay (req->wValue);  
+  }
+}
+
+/**
+  * @brief  DFU_Req_DNLOAD
+  *         Handles the DFU DNLOAD request.
+  * @param  pdev: device instance
+  * @param  req: pointer to the request structure
+  * @retval None
+  */
+static void DFU_Req_DNLOAD(void *pdev, USB_SETUP_REQ *req)
+{
+  /* Data setup request */
+  if (req->wLength > 0)
+  {
+    if ((DeviceState == STATE_dfuIDLE) || (DeviceState == STATE_dfuDNLOAD_IDLE))
+    {
+      /* Update the global length and block number */
+      wBlockNum = req->wValue;
+      wlength = req->wLength;
+      
+      /* Update the state machine */
+      DeviceState = STATE_dfuDNLOAD_SYNC;
+      DeviceStatus[4] = DeviceState;
+      
+      /* Prepare the reception of the buffer over EP0 */
+      USBD_CtlPrepareRx (pdev,
+                         (uint8_t*)MAL_Buffer,                                  
+                         wlength);
+    }
+    /* Unsupported state */
+    else
+    {
+      /* Call the error management function (command will be nacked */
+      USBD_CtlError (pdev, req);
+    }
+  }
+  /* 0 Data DNLOAD request */
+  else
+  {
+    /* End of DNLOAD operation*/
+    if (DeviceState == STATE_dfuDNLOAD_IDLE || DeviceState == STATE_dfuIDLE )
+    {
+      Manifest_State = Manifest_In_Progress;
+      DeviceState = STATE_dfuMANIFEST_SYNC;
+      DeviceStatus[1] = 0;
+      DeviceStatus[2] = 0;
+      DeviceStatus[3] = 0;
+      DeviceStatus[4] = DeviceState;
+    }
+    else
+    {
+      /* Call the error management function (command will be nacked */
+      USBD_CtlError (pdev, req);
+    }
+  }  
+}
+
+/**
+  * @brief  DFU_Req_UPLOAD
+  *         Handles the DFU UPLOAD request.
+  * @param  pdev: instance
+  * @param  req: pointer to the request structure
+  * @retval status
+  */
+static void DFU_Req_UPLOAD(void *pdev, USB_SETUP_REQ *req)
+{
+  uint8_t *Phy_Addr = NULL;
+  uint32_t Addr = 0;
+  
+  /* Data setup request */
+  if (req->wLength > 0)
+  {
+    if ((DeviceState == STATE_dfuIDLE) || (DeviceState == STATE_dfuUPLOAD_IDLE))
+    {
+      /* Update the global langth and block number */
+      wBlockNum = req->wValue;
+      wlength = req->wLength;
+      
+      /* DFU Get Command */
+      if (wBlockNum == 0)  
+      {
+        /* Update the state machine */
+        DeviceState = (wlength > 3)? STATE_dfuIDLE:STATE_dfuUPLOAD_IDLE;        
+        DeviceStatus[4] = DeviceState;
+        DeviceStatus[1] = 0;
+        DeviceStatus[2] = 0;
+        DeviceStatus[3] = 0;
+        
+        /* Store the values of all supported commands */
+        MAL_Buffer[0] = CMD_GETCOMMANDS;
+        MAL_Buffer[1] = CMD_SETADDRESSPOINTER;
+        MAL_Buffer[2] = CMD_ERASE;
+        
+        /* Send the status data over EP0 */
+        USBD_CtlSendData (pdev,
+                          (uint8_t *)(&(MAL_Buffer[0])),
+                          3);
+      }
+      else if (wBlockNum > 1)
+      {
+        DeviceState = STATE_dfuUPLOAD_IDLE ;
+        DeviceStatus[4] = DeviceState;
+        DeviceStatus[1] = 0;
+        DeviceStatus[2] = 0;
+        DeviceStatus[3] = 0;
+        Addr = ((wBlockNum - 2) * XFERSIZE) + Pointer;  /* Change is Accelerated*/
+        
+        /* Return the physical address where data are stored */
+        Phy_Addr = MAL_Read(Addr, wlength);
+        
+        /* Send the status data over EP0 */
+        USBD_CtlSendData (pdev,
+                          Phy_Addr,
+                          wlength);
+      }
+      else  /* unsupported wBlockNum */
+      {
+        DeviceState = STATUS_ERRSTALLEDPKT;
+        DeviceStatus[4] = DeviceState;
+        DeviceStatus[1] = 0;
+        DeviceStatus[2] = 0;
+        DeviceStatus[3] = 0;
+        
+        /* Call the error management function (command will be nacked */
+        USBD_CtlError (pdev, req); 
+      }
+    }
+    /* Unsupported state */
+    else
+    {
+      wlength = 0;
+      wBlockNum = 0;   
+      /* Call the error management function (command will be nacked */
+      USBD_CtlError (pdev, req);
+    }
+  }
+  /* No Data setup request */
+  else
+  {
+    DeviceState = STATE_dfuIDLE;
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0;
+    DeviceStatus[4] = DeviceState;
+  }
+}
+
+/**
+  * @brief  DFU_Req_GETSTATUS
+  *         Handles the DFU GETSTATUS request.
+  * @param  pdev: instance
+  * @retval status
+  */
+static void DFU_Req_GETSTATUS(void *pdev)
+{
+  switch (DeviceState)
+  {
+  case   STATE_dfuDNLOAD_SYNC:
+    if (wlength != 0)
+    {
+      DeviceState = STATE_dfuDNBUSY;
+      DeviceStatus[4] = DeviceState;
+      if ((wBlockNum == 0) && (MAL_Buffer[0] == CMD_ERASE))
+      {
+        MAL_GetStatus(Pointer, 0, DeviceStatus);
+      }
+      else
+      {
+        MAL_GetStatus(Pointer, 1, DeviceStatus);
+      }
+    }
+    else  /* (wlength==0)*/
+    {
+      DeviceState = STATE_dfuDNLOAD_IDLE;
+      DeviceStatus[4] = DeviceState;
+      DeviceStatus[1] = 0;
+      DeviceStatus[2] = 0;
+      DeviceStatus[3] = 0;
+    }
+    break;
+    
+  case   STATE_dfuMANIFEST_SYNC :
+    if (Manifest_State == Manifest_In_Progress)
+    {
+      DeviceState = STATE_dfuMANIFEST;
+      DeviceStatus[4] = DeviceState;
+      DeviceStatus[1] = 1;             /*bwPollTimeout = 1ms*/
+      DeviceStatus[2] = 0;
+      DeviceStatus[3] = 0;
+      //break;
+    }
+    else if ((Manifest_State == Manifest_complete) && \
+      ((usbd_dfu_CfgDesc[(11 + (9 * USBD_ITF_MAX_NUM))]) & 0x04))
+    {
+      DeviceState = STATE_dfuIDLE;
+      DeviceStatus[4] = DeviceState;
+      DeviceStatus[1] = 0;
+      DeviceStatus[2] = 0;
+      DeviceStatus[3] = 0;
+      //break;
+    }
+    break;
+    
+  default :
+    break;
+  }
+  
+  /* Send the status data over EP0 */
+  USBD_CtlSendData (pdev,
+                    (uint8_t *)(&(DeviceStatus[0])),
+                    6);
+}
+
+/**
+  * @brief  DFU_Req_CLRSTATUS 
+  *         Handles the DFU CLRSTATUS request.
+  * @param  pdev: device instance
+  * @retval status
+  */
+static void DFU_Req_CLRSTATUS(void *pdev)
+{
+  if (DeviceState == STATE_dfuERROR)
+  {
+    DeviceState = STATE_dfuIDLE;
+    DeviceStatus[0] = STATUS_OK;/*bStatus*/
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0; /*bwPollTimeout=0ms*/
+    DeviceStatus[4] = DeviceState;/*bState*/
+    DeviceStatus[5] = 0;/*iString*/
+  }
+  else
+  {   /*State Error*/
+    DeviceState = STATE_dfuERROR;
+    DeviceStatus[0] = STATUS_ERRUNKNOWN;/*bStatus*/
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0; /*bwPollTimeout=0ms*/
+    DeviceStatus[4] = DeviceState;/*bState*/
+    DeviceStatus[5] = 0;/*iString*/
+  }
+}
+
+/**
+  * @brief  DFU_Req_GETSTATE
+  *         Handles the DFU GETSTATE request.
+  * @param  pdev: device instance
+  * @retval None
+  */
+static void DFU_Req_GETSTATE(void *pdev)
+{
+  /* Return the current state of the DFU interface */
+  USBD_CtlSendData (pdev, 
+                    &DeviceState,
+                    1);  
+}
+
+/**
+  * @brief  DFU_Req_ABORT
+  *         Handles the DFU ABORT request.
+  * @param  pdev: device instance
+  * @retval None
+  */
+static void DFU_Req_ABORT(void *pdev)
+{
+  if (DeviceState == STATE_dfuIDLE || DeviceState == STATE_dfuDNLOAD_SYNC
+      || DeviceState == STATE_dfuDNLOAD_IDLE || DeviceState == STATE_dfuMANIFEST_SYNC
+        || DeviceState == STATE_dfuUPLOAD_IDLE )
+  {
+    DeviceState = STATE_dfuIDLE;
+    DeviceStatus[0] = STATUS_OK;
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0; /*bwPollTimeout=0ms*/
+    DeviceStatus[4] = DeviceState;
+    DeviceStatus[5] = 0; /*iString*/
+    wBlockNum = 0;
+    wlength = 0;
+  }  
+}
+
+/**
+  * @brief  DFU_LeaveDFUMode
+  *         Handles the sub-protocol DFU leave DFU mode request (leaves DFU mode
+  *         and resets device to jump to user loaded code).
+  * @param  pdev: device instance
+  * @retval None
+  */
+void DFU_LeaveDFUMode(void *pdev)
+{
+ Manifest_State = Manifest_complete;
+
+  if ((usbd_dfu_CfgDesc[(11 + (9 * USBD_ITF_MAX_NUM))]) & 0x04)
+  {
+    DeviceState = STATE_dfuMANIFEST_SYNC;
+    DeviceStatus[4] = DeviceState;
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0;
+    return;
+  }
+  else
+  {
+    DeviceState = STATE_dfuMANIFEST_WAIT_RESET;
+    DeviceStatus[4] = DeviceState;
+    DeviceStatus[1] = 0;
+    DeviceStatus[2] = 0;
+    DeviceStatus[3] = 0;
+
+    /* Disconnect the USB device */
+    DCD_DevDisconnect (pdev);
+
+    /* DeInitilialize the MAL(Media Access Layer) */
+    MAL_DeInit();
+    
+    /* Generate system reset to allow jumping to the user code */
+    NVIC_SystemReset();
+   
+    /* This instruction will not be reached (system reset) */
+    return;
+  }  
+}
+
+/**
+  * @brief  USBD_DFU_GetCfgDesc 
+  *         Returns configuration descriptor
+  * @param  speed : current device speed
+  * @param  length : pointer data length
+  * @retval pointer to descriptor buffer
+  */
+static uint8_t  *USBD_DFU_GetCfgDesc (uint8_t speed, uint16_t *length)
+{
+  *length = sizeof (usbd_dfu_CfgDesc);
+  return usbd_dfu_CfgDesc;
+}
+
+#ifdef USB_OTG_HS_CORE
+/**
+  * @brief  USBD_DFU_GetOtherCfgDesc 
+  *         Returns other speed configuration descriptor.
+  * @param  speed : current device speed
+  * @param  length : pointer data length
+  * @retval pointer to descriptor buffer
+  */
+static uint8_t  *USBD_DFU_GetOtherCfgDesc (uint8_t speed, uint16_t *length)
+{
+  *length = sizeof (usbd_dfu_OtherCfgDesc);
+  return usbd_dfu_OtherCfgDesc;
+}
+#endif
+
+/**
+  * @brief  USBD_DFU_GetUsrStringDesc
+  *         Manages the transfer of memory interfaces string descriptors.
+  * @param  speed : current device speed
+  * @param  index: desciptor index
+  * @param  length : pointer data length
+  * @retval pointer to the descriptor table or NULL if the descriptor is not supported.
+  */
+static uint8_t* USBD_DFU_GetUsrStringDesc (uint8_t speed, uint8_t index , uint16_t *length)
+{
+  /* Check if the requested string interface is supported */
+  if (index <= (USBD_IDX_INTERFACE_STR + USBD_ITF_MAX_NUM))
+  {
+    
+    
+    USBD_GetString ((uint8_t *)usbd_dfu_StringDesc[index - USBD_IDX_INTERFACE_STR - 1], USBD_StrDesc, length);
+    return USBD_StrDesc;  
+  }
+  /* Not supported Interface Descriptor index */
+  else
+  {
+    return NULL;
+  }
+}
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/src/usbd_dfu_mal.c
@@ -1,0 +1,287 @@
+/**
+  ******************************************************************************
+  * @file    usbd_dfu_mal.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Generic media access Layer.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_dfu_mal.h"
+
+#include "usbd_flash_if.h"
+
+#ifdef DFU_MAL_SUPPORT_OTP
+ #include "usbd_otp_if.h"
+#endif
+
+#ifdef DFU_MAL_SUPPORT_MEM
+ #include "usbd_mem_if_template.h"
+#endif
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+
+/* Global Memories callback and string descriptors reference tables.
+   To add a new memory, modify the value of MAX_USED_MEDIA in usbd_dfu_mal.h
+   and add the pointer to the callback structure in this table.
+   Then add the pointer to the memory string descriptor in usbd_dfu_StringDesc table.
+   No other operation is required. */
+DFU_MAL_Prop_TypeDef* tMALTab[MAX_USED_MEDIA] = {
+    &DFU_Flash_cb
+#ifdef DFU_MAL_SUPPORT_OTP
+  , &DFU_Otp_cb
+#endif
+#ifdef DFU_MAL_SUPPORT_MEM
+  , &DFU_Mem_cb
+#endif
+};
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+
+__ALIGN_BEGIN const uint8_t* usbd_dfu_StringDesc[MAX_USED_MEDIA] __ALIGN_END  = {
+    FLASH_IF_STRING
+#ifdef DFU_MAL_SUPPORT_OTP
+  , OTP_IF_STRING
+#endif
+#ifdef DFU_MAL_SUPPORT_MEM
+  , MEM_IF_STRING
+#endif
+};
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+/* RAM Buffer for Downloaded Data */
+__ALIGN_BEGIN uint8_t  MAL_Buffer[XFERSIZE] __ALIGN_END ; 
+
+/* Private function prototypes -----------------------------------------------*/
+static uint8_t  MAL_CheckAdd  (uint32_t Add);
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  MAL_Init
+  *         Initializes the Media on the STM32
+  * @param  None
+  * @retval Result of the opeartion (MAL_OK in all cases)
+  */
+uint16_t MAL_Init(void)
+{
+  uint32_t memIdx = 0;
+  
+  /* Init all supported memories */
+  for(memIdx = 0; memIdx < MAX_USED_MEDIA; memIdx++)
+  {
+    /* If the check addres is positive, exit with the memory index */
+    if (tMALTab[memIdx]->pMAL_Init != NULL)
+    {
+      tMALTab[memIdx]->pMAL_Init();
+    }
+  }
+
+  return MAL_OK;
+}
+
+/**
+  * @brief  MAL_DeInit
+  *         DeInitializes the Media on the STM32
+  * @param  None
+  * @retval Result of the opeartion (MAL_OK in all cases)
+  */
+uint16_t MAL_DeInit(void)
+{
+  uint32_t memIdx = 0;
+  
+  /* Init all supported memories */
+  for(memIdx = 0; memIdx < MAX_USED_MEDIA; memIdx++)
+  {
+    /* Check if the command is supported */
+    if (tMALTab[memIdx]->pMAL_DeInit != NULL)
+    {
+      tMALTab[memIdx]->pMAL_DeInit();
+    }
+  }
+
+  return MAL_OK;
+}
+
+/**
+  * @brief  MAL_Erase
+  *         Erase a sector of memory.
+  * @param  Add: Sector address/code
+  * @retval Result of the opeartion: MAL_OK if all operations are OK else MAL_FAIL
+  */
+uint16_t MAL_Erase(uint32_t Add)
+{
+  uint32_t memIdx = MAL_CheckAdd(Add);
+ 
+  /* Check if the area is protected */
+  if (DFU_MAL_IS_PROTECTED_AREA(Add))
+  {
+    return MAL_FAIL;
+  }    
+  
+  if (memIdx < MAX_USED_MEDIA)
+  {
+    /* Check if the command is supported */
+    if (tMALTab[memIdx]->pMAL_Erase != NULL)
+    {
+      return tMALTab[memIdx]->pMAL_Erase(Add);
+    }
+    else
+    {
+      return MAL_FAIL;
+    }
+  }
+  else
+  {
+    return MAL_FAIL;
+  }
+}
+
+/**
+  * @brief  MAL_Write
+  *         Write sectors of memory.
+  * @param  Add: Sector address/code
+  * @param  Len: Number of data to be written (in bytes)
+  * @retval Result of the opeartion: MAL_OK if all operations are OK else MAL_FAIL
+  */
+uint16_t MAL_Write (uint32_t Add, uint32_t Len)
+{
+  uint32_t memIdx = MAL_CheckAdd(Add);
+ 
+  /* Check if the area is protected */
+  if (DFU_MAL_IS_PROTECTED_AREA(Add))
+  {
+    return MAL_FAIL;
+  }   
+  
+  if (memIdx < MAX_USED_MEDIA)
+  {
+    /* Check if the command is supported */
+    if (tMALTab[memIdx]->pMAL_Write != NULL)
+    {
+      return tMALTab[memIdx]->pMAL_Write(Add, Len);
+    }
+    else
+    {
+      return MAL_FAIL;
+    }    
+  }
+  else
+  {
+    return MAL_FAIL;
+  }
+}
+
+/**
+  * @brief  MAL_Read
+  *         Read sectors of memory.
+  * @param  Add: Sector address/code
+  * @param  Len: Number of data to be written (in bytes)
+  * @retval Buffer pointer
+  */
+uint8_t *MAL_Read (uint32_t Add, uint32_t Len)
+{
+  uint32_t memIdx = MAL_CheckAdd(Add);
+  
+  if (memIdx < MAX_USED_MEDIA)
+  {
+    /* Check if the command is supported */
+    if (tMALTab[memIdx]->pMAL_Read != NULL)
+    {
+      return tMALTab[memIdx]->pMAL_Read(Add, Len);
+    }
+    else
+    {
+      return MAL_Buffer;
+    }     
+  }
+  else
+  {
+    return MAL_Buffer;
+  }
+}
+
+/**
+  * @brief  MAL_GetStatus
+  *         Get the status of a given memory.
+  * @param  Add: Sector address/code (allow to determine which memory will be addressed)
+  * @param  Cmd: 0 for erase and 1 for write
+  * @param  buffer: pointer to the buffer where the status data will be stored.
+  * @retval Buffer pointer
+  */
+uint16_t MAL_GetStatus(uint32_t Add , uint8_t Cmd, uint8_t *buffer)
+{
+  uint32_t memIdx = MAL_CheckAdd(Add);
+  
+  if (memIdx < MAX_USED_MEDIA)
+  {
+    if (Cmd & 0x01)
+    {
+      SET_POLLING_TIMING(tMALTab[memIdx]->EraseTiming);
+    }
+    else
+    {
+      SET_POLLING_TIMING(tMALTab[memIdx]->WriteTiming);
+    }
+    
+    return MAL_OK;
+  }
+  else
+  {
+    return MAL_FAIL;
+  }
+}
+
+/**
+  * @brief  MAL_CheckAdd
+  *         Determine which memory should be managed.
+  * @param  Add: Sector address/code (allow to determine which memory will be addressed)
+  * @retval Index of the addressed memory.
+  */
+static uint8_t  MAL_CheckAdd(uint32_t Add)
+{
+  uint32_t memIdx = 0;
+  
+  /* Check with all supported memories */
+  for(memIdx = 0; memIdx < MAX_USED_MEDIA; memIdx++)
+  {
+    /* If the check addres is positive, exit with the memory index */
+    if (tMALTab[memIdx]->pMAL_CheckAdd(Add) == MAL_OK)
+    {
+      return memIdx;
+    }
+  }
+  /* If no memory found, return MAX_USED_MEDIA */
+  return (MAX_USED_MEDIA);
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/src/usbd_flash_if.c
@@ -1,0 +1,227 @@
+/**
+  ******************************************************************************
+  * @file    usbd_flash_if.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Specific media access Layer for internal flash.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_flash_if.h"
+#include "usbd_dfu_mal.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* Private function prototypes -----------------------------------------------*/
+uint16_t FLASH_If_Init(void);
+uint16_t FLASH_If_Erase (uint32_t Add);
+uint16_t FLASH_If_Write (uint32_t Add, uint32_t Len);
+uint8_t *FLASH_If_Read  (uint32_t Add, uint32_t Len);
+uint16_t FLASH_If_DeInit(void);
+uint16_t FLASH_If_CheckAdd(uint32_t Add);
+
+
+/* Private variables ---------------------------------------------------------*/
+DFU_MAL_Prop_TypeDef DFU_Flash_cb =
+  {
+    FLASH_IF_STRING,
+    FLASH_If_Init,
+    FLASH_If_DeInit,
+    FLASH_If_Erase,
+    FLASH_If_Write,
+    FLASH_If_Read,
+    FLASH_If_CheckAdd,
+    50, /* Erase Time in ms */
+    50  /* Programming Time in ms */
+  };
+
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  FLASH_If_Init
+  *         Memory initialization routine.
+  * @param  None
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t FLASH_If_Init(void)
+{
+  /* Unlock the internal flash */
+  FLASH_Unlock();
+  
+  return MAL_OK;
+}
+
+/**
+  * @brief  FLASH_If_DeInit
+  *         Memory deinitialization routine.
+  * @param  None
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t FLASH_If_DeInit(void)
+{
+  /* Lock the internal flash */
+  FLASH_Lock();
+  
+  return MAL_OK;
+}
+
+/*******************************************************************************
+* Function Name  : FLASH_If_Erase
+* Description    : Erase sector
+* Input          : None
+* Output         : None
+* Return         : None
+*******************************************************************************/
+uint16_t FLASH_If_Erase(uint32_t Add)
+{
+#if defined (STM32F2XX) || defined (STM32F4XX)
+  /* Check which sector has to be erased */
+  if (Add < 0x08004000)
+  {
+    FLASH_EraseSector(FLASH_Sector_0, VoltageRange_3);
+  }
+  else if (Add < 0x08008000)
+  {
+    FLASH_EraseSector(FLASH_Sector_1, VoltageRange_3);
+  }
+  else if (Add < 0x0800C000)
+  {
+    FLASH_EraseSector(FLASH_Sector_2, VoltageRange_3);
+  }
+  else if (Add < 0x08010000)
+  {
+    FLASH_EraseSector(FLASH_Sector_3, VoltageRange_3);
+  }
+  else if (Add < 0x08020000)
+  {
+    FLASH_EraseSector(FLASH_Sector_4, VoltageRange_3);
+  }
+  else if (Add < 0x08040000)
+  {
+    FLASH_EraseSector(FLASH_Sector_5, VoltageRange_3);
+  }
+  else if (Add < 0x08060000)
+  {
+    FLASH_EraseSector(FLASH_Sector_6, VoltageRange_3);
+  }
+  else if (Add < 0x08080000)
+  {
+    FLASH_EraseSector(FLASH_Sector_7, VoltageRange_3);
+  }
+  else if (Add < 0x080A0000)
+  {
+    FLASH_EraseSector(FLASH_Sector_8, VoltageRange_3);
+  }
+  else if (Add < 0x080C0000)
+  {
+    FLASH_EraseSector(FLASH_Sector_9, VoltageRange_3);
+  }
+  else if (Add < 0x080E0000)
+  {
+    FLASH_EraseSector(FLASH_Sector_10, VoltageRange_3);
+  }
+  else if (Add < 0x08100000)
+  {
+    FLASH_EraseSector(FLASH_Sector_11, VoltageRange_3);
+  }
+  else
+  {
+    return MAL_FAIL;    
+  }
+#elif defined(STM32F10X_CL)
+  /* Call the standard Flash erase function */
+  FLASH_ErasePage(Add);  
+#endif /* STM32F2XX */
+  
+  return MAL_OK;
+}
+
+/**
+  * @brief  FLASH_If_Write
+  *         Memory write routine.
+  * @param  Add: Address to be written to.
+  * @param  Len: Number of data to be written (in bytes).
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t FLASH_If_Write(uint32_t Add, uint32_t Len)
+{
+  uint32_t idx = 0;
+  
+  if  (Len & 0x3) /* Not an aligned data */
+  {
+    for (idx = Len; idx < ((Len & 0xFFFC) + 4); idx++)
+    {
+      MAL_Buffer[idx] = 0xFF;
+    }
+  }
+  
+  /* Data received are Word multiple */
+  for (idx = 0; idx <  Len; idx = idx + 4)
+  {
+    FLASH_ProgramWord(Add, *(uint32_t *)(MAL_Buffer + idx));
+    Add += 4;
+  }
+  return MAL_OK;
+}
+
+/**
+  * @brief  FLASH_If_Read
+  *         Memory read routine.
+  * @param  Add: Address to be read from.
+  * @param  Len: Number of data to be read (in bytes).
+  * @retval Pointer to the phyisical address where data should be read.
+  */
+uint8_t *FLASH_If_Read (uint32_t Add, uint32_t Len)
+{
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  uint32_t idx = 0;
+  for (idx = 0; idx < Len; idx += 4)
+  {
+    *(uint32_t*)(MAL_Buffer + idx) = *(uint32_t *)(Add + idx);
+  }
+  return (uint8_t*)(MAL_Buffer);
+#else  
+  return  (uint8_t *)(Add);
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+}
+
+/**
+  * @brief  FLASH_If_CheckAdd
+  *         Check if the address is an allowed address for this memory.
+  * @param  Add: Address to be checked.
+  * @param  Len: Number of data to be read (in bytes).
+  * @retval MAL_OK if the address is allowed, MAL_FAIL else.
+  */
+uint16_t FLASH_If_CheckAdd(uint32_t Add)
+{
+  if ((Add >= FLASH_START_ADD) && (Add < FLASH_END_ADD))
+  {
+    return MAL_OK;
+  }
+  else
+  {
+    return MAL_FAIL;
+  }
+}
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/src/usbd_mem_if_template.c
@@ -1,0 +1,139 @@
+/**
+  ******************************************************************************
+  * @file    usbd_mem_if_template.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Specific media access Layer for a template memory. This file is 
+             provided as template example showing how to implement a new memory
+             interface based on pre-defined API.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_mem_if_template.h"
+#include "usbd_dfu_mal.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* Private function prototypes -----------------------------------------------*/
+uint16_t MEM_If_Init(void);
+uint16_t MEM_If_Erase (uint32_t Add);
+uint16_t MEM_If_Write (uint32_t Add, uint32_t Len);
+uint8_t *MEM_If_Read  (uint32_t Add, uint32_t Len);
+uint16_t MEM_If_DeInit(void);
+uint16_t MEM_If_CheckAdd(uint32_t Add);
+
+
+/* Private variables ---------------------------------------------------------*/
+DFU_MAL_Prop_TypeDef DFU_Mem_cb =
+  {
+    MEM_IF_STRING,
+    MEM_If_Init,
+    MEM_If_DeInit,
+    MEM_If_Erase,
+    MEM_If_Write,
+    MEM_If_Read,
+    MEM_If_CheckAdd,
+    10, /* Erase Time in ms */
+    10  /* Programming Time in ms */
+  };
+  
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  MEM_If_Init
+  *         Memory initialization routine.
+  * @param  None
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t MEM_If_Init(void)
+{ 
+  return MAL_OK;
+}
+
+/**
+  * @brief  MEM_If_DeInit
+  *         Memory deinitialization routine.
+  * @param  None
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t MEM_If_DeInit(void)
+{ 
+  return MAL_OK;
+}
+
+/**
+  * @brief  MEM_If_Erase
+  *         Erase sector.
+  * @param  Add: Address of sector to be erased.
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t MEM_If_Erase(uint32_t Add)
+{
+  return MAL_OK;
+}
+
+/**
+  * @brief  MEM_If_Write
+  *         Memory write routine.
+  * @param  Add: Address to be written to.
+  * @param  Len: Number of data to be written (in bytes).
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t MEM_If_Write(uint32_t Add, uint32_t Len)
+{
+  return MAL_OK;
+}
+
+/**
+  * @brief  MEM_If_Read
+  *         Memory read routine.
+  * @param  Add: Address to be read from.
+  * @param  Len: Number of data to be read (in bytes).
+  * @retval Pointer to the phyisical address where data should be read.
+  */
+uint8_t *MEM_If_Read (uint32_t Add, uint32_t Len)
+{
+  /* Return a valid address to avoid HardFault */
+  return  (uint8_t*)(MAL_Buffer); 
+}
+
+/**
+  * @brief  MEM_If_CheckAdd
+  *         Check if the address is an allowed address for this memory.
+  * @param  Add: Address to be checked.
+  * @param  Len: Number of data to be read (in bytes).
+  * @retval MAL_OK if the address is allowed, MAL_FAIL else.
+  */
+uint16_t MEM_If_CheckAdd(uint32_t Add)
+{
+  if ((Add >= MEM_START_ADD) && (Add < MEM_END_ADD))
+  {
+    return MAL_OK;
+  }
+  else
+  {
+    return MAL_FAIL;
+  }
+}
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/dfu/src/usbd_otp_if.c
@@ -1,0 +1,126 @@
+/**
+  ******************************************************************************
+  * @file    usbd_otp_if.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Specific media access Layer for OTP (One Time Programming) memory.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_otp_if.h"
+#include "usbd_dfu_mal.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* Private function prototypes -----------------------------------------------*/
+uint16_t OTP_If_Write (uint32_t Add, uint32_t Len);
+uint8_t *OTP_If_Read  (uint32_t Add, uint32_t Len);
+uint16_t OTP_If_DeInit(void);
+uint16_t OTP_If_CheckAdd(uint32_t Add);
+
+
+/* Private variables ---------------------------------------------------------*/
+DFU_MAL_Prop_TypeDef DFU_Otp_cb =
+  {
+    OTP_IF_STRING,
+    NULL, /* Init not supported*/
+    NULL, /* DeInit not supported */
+    NULL, /* Erase not supported */
+    OTP_If_Write,
+    OTP_If_Read,
+    OTP_If_CheckAdd,
+    1,  /* Erase Time in ms */
+    10  /* Programming Time in ms */
+  };
+  
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  OTP_If_Write
+  *         Memory write routine.
+  * @param  Add: Address to be written to.
+  * @param  Len: Number of data to be written (in bytes).
+  * @retval MAL_OK if operation is successeful, MAL_FAIL else.
+  */
+uint16_t OTP_If_Write(uint32_t Add, uint32_t Len)
+{
+  uint32_t idx = 0;
+  
+  if  (Len & 0x3) /* Not an aligned data */
+  {
+    for (idx = Len; idx < ((Len & 0xFFFC) + 4); idx++)
+    {
+      MAL_Buffer[idx] = 0xFF;
+    }
+  }
+  
+  /* Data received are Word multiple */
+  for (idx = 0; idx <  Len; idx = idx + 4)
+  {
+    FLASH_ProgramWord(Add, *(uint32_t *)(MAL_Buffer + idx));
+    Add += 4;
+  }
+  return MAL_OK;
+}
+
+/**
+  * @brief  OTP_If_Read
+  *         Memory read routine.
+  * @param  Add: Address to be read from.
+  * @param  Len: Number of data to be read (in bytes).
+  * @retval Pointer to the phyisical address where data should be read.
+  */
+uint8_t *OTP_If_Read (uint32_t Add, uint32_t Len)
+{
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  uint32_t idx = 0;
+  for (idx = 0; idx < Len; idx += 4)
+  {
+    *(uint32_t*)(MAL_Buffer + idx) = *(uint32_t *)(Add + idx);
+  }
+  return (uint8_t*)(MAL_Buffer);
+#else
+  return  (uint8_t*)(Add);
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+}
+
+/**
+  * @brief  OTP_If_CheckAdd
+  *         Check if the address is an allowed address for this memory.
+  * @param  Add: Address to be checked.
+  * @param  Len: Number of data to be read (in bytes).
+  * @retval MAL_OK if the address is allowed, MAL_FAIL else.
+  */
+uint16_t OTP_If_CheckAdd(uint32_t Add)
+{
+  if ((Add >= OTP_START_ADD) && (Add < OTP_END_ADD))
+  {
+    return MAL_OK;
+  }
+  else
+  {
+    return MAL_FAIL;
+  }
+}
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/hid/inc/usbd_hid_core.h
@@ -1,0 +1,116 @@
+/**
+  ******************************************************************************
+  * @file    usbd_hid_core.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header file for the usbd_hid_core.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+
+#ifndef __USB_HID_CORE_H_
+#define __USB_HID_CORE_H_
+
+#include  "usbd_ioreq.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_HID
+  * @brief This file is the Header file for USBD_msc.c
+  * @{
+  */ 
+
+
+/** @defgroup USBD_HID_Exported_Defines
+  * @{
+  */ 
+#define USB_HID_CONFIG_DESC_SIZ       34
+#define USB_HID_DESC_SIZ              9
+#define HID_MOUSE_REPORT_DESC_SIZE    74
+
+#define HID_DESCRIPTOR_TYPE           0x21
+#define HID_REPORT_DESC               0x22
+
+
+#define HID_REQ_SET_PROTOCOL          0x0B
+#define HID_REQ_GET_PROTOCOL          0x03
+
+#define HID_REQ_SET_IDLE              0x0A
+#define HID_REQ_GET_IDLE              0x02
+
+#define HID_REQ_SET_REPORT            0x09
+#define HID_REQ_GET_REPORT            0x01
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_TypesDefinitions
+  * @{
+  */
+
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_CORE_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_Variables
+  * @{
+  */ 
+
+extern USBD_Class_cb_TypeDef  USBD_HID_cb;
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_Functions
+  * @{
+  */ 
+uint8_t USBD_HID_SendReport (USB_OTG_CORE_HANDLE  *pdev, 
+                                 uint8_t *report,
+                                 uint16_t len);
+/**
+  * @}
+  */ 
+
+#endif  // __USB_HID_CORE_H_
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+  
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/hid/src/usbd_hid_core.c
@@ -1,0 +1,487 @@
+/**
+  ******************************************************************************
+  * @file    usbd_hid_core.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides the HID core functions.
+  *
+  * @verbatim
+  *      
+  *          ===================================================================      
+  *                                HID Class  Description
+  *          =================================================================== 
+  *           This module manages the HID class V1.11 following the "Device Class Definition
+  *           for Human Interface Devices (HID) Version 1.11 Jun 27, 2001".
+  *           This driver implements the following aspects of the specification:
+  *             - The Boot Interface Subclass
+  *             - The Mouse protocol
+  *             - Usage Page : Generic Desktop
+  *             - Usage : Joystick)
+  *             - Collection : Application 
+  *      
+  * @note     In HS mode and when the DMA is used, all variables and data structures
+  *           dealing with the DMA during the transaction process should be 32-bit aligned.
+  *           
+  *      
+  *  @endverbatim
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_hid_core.h"
+#include "usbd_desc.h"
+#include "usbd_req.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup USBD_HID 
+  * @brief usbd core module
+  * @{
+  */ 
+
+/** @defgroup USBD_HID_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_HID_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_HID_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+
+
+/** @defgroup USBD_HID_Private_FunctionPrototypes
+  * @{
+  */
+
+
+static uint8_t  USBD_HID_Init (void  *pdev, 
+                               uint8_t cfgidx);
+
+static uint8_t  USBD_HID_DeInit (void  *pdev, 
+                                 uint8_t cfgidx);
+
+static uint8_t  USBD_HID_Setup (void  *pdev, 
+                                USB_SETUP_REQ *req);
+
+static uint8_t  *USBD_HID_GetCfgDesc (uint8_t speed, uint16_t *length);
+
+static uint8_t  USBD_HID_DataIn (void  *pdev, uint8_t epnum);
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_HID_Private_Variables
+  * @{
+  */ 
+
+USBD_Class_cb_TypeDef  USBD_HID_cb = 
+{
+  USBD_HID_Init,
+  USBD_HID_DeInit,
+  USBD_HID_Setup,
+  NULL, /*EP0_TxSent*/  
+  NULL, /*EP0_RxReady*/
+  USBD_HID_DataIn, /*DataIn*/
+  NULL, /*DataOut*/
+  NULL, /*SOF */
+  NULL,
+  NULL,      
+  USBD_HID_GetCfgDesc,
+#ifdef USB_OTG_HS_CORE  
+  USBD_HID_GetCfgDesc, /* use same config as per FS */
+#endif  
+};
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */        
+__ALIGN_BEGIN static uint32_t  USBD_HID_AltSet  __ALIGN_END = 0;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */      
+__ALIGN_BEGIN static uint32_t  USBD_HID_Protocol  __ALIGN_END = 0;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */  
+__ALIGN_BEGIN static uint32_t  USBD_HID_IdleState __ALIGN_END = 0;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */ 
+/* USB HID device Configuration Descriptor */
+__ALIGN_BEGIN static uint8_t USBD_HID_CfgDesc[USB_HID_CONFIG_DESC_SIZ] __ALIGN_END =
+{
+  0x09, /* bLength: Configuration Descriptor size */
+  USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType: Configuration */
+  USB_HID_CONFIG_DESC_SIZ,
+  /* wTotalLength: Bytes returned */
+  0x00,
+  0x01,         /*bNumInterfaces: 1 interface*/
+  0x01,         /*bConfigurationValue: Configuration value*/
+  0x00,         /*iConfiguration: Index of string descriptor describing
+  the configuration*/
+  0xE0,         /*bmAttributes: bus powered and Support Remote Wake-up */
+  0x32,         /*MaxPower 100 mA: this current is used for detecting Vbus*/
+  
+  /************** Descriptor of Joystick Mouse interface ****************/
+  /* 09 */
+  0x09,         /*bLength: Interface Descriptor size*/
+  USB_INTERFACE_DESCRIPTOR_TYPE,/*bDescriptorType: Interface descriptor type*/
+  0x00,         /*bInterfaceNumber: Number of Interface*/
+  0x00,         /*bAlternateSetting: Alternate setting*/
+  0x01,         /*bNumEndpoints*/
+  0x03,         /*bInterfaceClass: HID*/
+  0x01,         /*bInterfaceSubClass : 1=BOOT, 0=no boot*/
+  0x02,         /*nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse*/
+  0,            /*iInterface: Index of string descriptor*/
+  /******************** Descriptor of Joystick Mouse HID ********************/
+  /* 18 */
+  0x09,         /*bLength: HID Descriptor size*/
+  HID_DESCRIPTOR_TYPE, /*bDescriptorType: HID*/
+  0x11,         /*bcdHID: HID Class Spec release number*/
+  0x01,
+  0x00,         /*bCountryCode: Hardware target country*/
+  0x01,         /*bNumDescriptors: Number of HID class descriptors to follow*/
+  0x22,         /*bDescriptorType*/
+  HID_MOUSE_REPORT_DESC_SIZE,/*wItemLength: Total length of Report descriptor*/
+  0x00,
+  /******************** Descriptor of Mouse endpoint ********************/
+  /* 27 */
+  0x07,          /*bLength: Endpoint Descriptor size*/
+  USB_ENDPOINT_DESCRIPTOR_TYPE, /*bDescriptorType:*/
+  
+  HID_IN_EP,     /*bEndpointAddress: Endpoint Address (IN)*/
+  0x03,          /*bmAttributes: Interrupt endpoint*/
+  HID_IN_PACKET, /*wMaxPacketSize: 4 Byte max */
+  0x00,
+  0x0A,          /*bInterval: Polling Interval (10 ms)*/
+  /* 34 */
+} ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+/* USB HID device Configuration Descriptor */
+__ALIGN_BEGIN static uint8_t USBD_HID_Desc[USB_HID_DESC_SIZ] __ALIGN_END=
+{
+  /* 18 */
+  0x09,         /*bLength: HID Descriptor size*/
+  HID_DESCRIPTOR_TYPE, /*bDescriptorType: HID*/
+  0x11,         /*bcdHID: HID Class Spec release number*/
+  0x01,
+  0x00,         /*bCountryCode: Hardware target country*/
+  0x01,         /*bNumDescriptors: Number of HID class descriptors to follow*/
+  0x22,         /*bDescriptorType*/
+  HID_MOUSE_REPORT_DESC_SIZE,/*wItemLength: Total length of Report descriptor*/
+  0x00,
+};
+#endif 
+
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */  
+__ALIGN_BEGIN static uint8_t HID_MOUSE_ReportDesc[HID_MOUSE_REPORT_DESC_SIZE] __ALIGN_END =
+{
+  0x05,   0x01,
+  0x09,   0x02,
+  0xA1,   0x01,
+  0x09,   0x01,
+  
+  0xA1,   0x00,
+  0x05,   0x09,
+  0x19,   0x01,
+  0x29,   0x03,
+  
+  0x15,   0x00,
+  0x25,   0x01,
+  0x95,   0x03,
+  0x75,   0x01,
+  
+  0x81,   0x02,
+  0x95,   0x01,
+  0x75,   0x05,
+  0x81,   0x01,
+  
+  0x05,   0x01,
+  0x09,   0x30,
+  0x09,   0x31,
+  0x09,   0x38,
+  
+  0x15,   0x81,
+  0x25,   0x7F,
+  0x75,   0x08,
+  0x95,   0x03,
+  
+  0x81,   0x06,
+  0xC0,   0x09,
+  0x3c,   0x05,
+  0xff,   0x09,
+  
+  0x01,   0x15,
+  0x00,   0x25,
+  0x01,   0x75,
+  0x01,   0x95,
+  
+  0x02,   0xb1,
+  0x22,   0x75,
+  0x06,   0x95,
+  0x01,   0xb1,
+  
+  0x01,   0xc0
+}; 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_HID_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @brief  USBD_HID_Init
+  *         Initialize the HID interface
+  * @param  pdev: device instance
+  * @param  cfgidx: Configuration index
+  * @retval status
+  */
+static uint8_t  USBD_HID_Init (void  *pdev, 
+                               uint8_t cfgidx)
+{
+  
+  /* Open EP IN */
+  DCD_EP_Open(pdev,
+              HID_IN_EP,
+              HID_IN_PACKET,
+              USB_OTG_EP_INT);
+  
+  /* Open EP OUT */
+  DCD_EP_Open(pdev,
+              HID_OUT_EP,
+              HID_OUT_PACKET,
+              USB_OTG_EP_INT);
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  USBD_HID_Init
+  *         DeInitialize the HID layer
+  * @param  pdev: device instance
+  * @param  cfgidx: Configuration index
+  * @retval status
+  */
+static uint8_t  USBD_HID_DeInit (void  *pdev, 
+                                 uint8_t cfgidx)
+{
+  /* Close HID EPs */
+  DCD_EP_Close (pdev , HID_IN_EP);
+  DCD_EP_Close (pdev , HID_OUT_EP);
+  
+  
+  return USBD_OK;
+}
+
+/**
+  * @brief  USBD_HID_Setup
+  *         Handle the HID specific requests
+  * @param  pdev: instance
+  * @param  req: usb requests
+  * @retval status
+  */
+static uint8_t  USBD_HID_Setup (void  *pdev, 
+                                USB_SETUP_REQ *req)
+{
+  uint16_t len = 0;
+  uint8_t  *pbuf = NULL;
+  
+  switch (req->bmRequest & USB_REQ_TYPE_MASK)
+  {
+  case USB_REQ_TYPE_CLASS :  
+    switch (req->bRequest)
+    {
+      
+      
+    case HID_REQ_SET_PROTOCOL:
+      USBD_HID_Protocol = (uint8_t)(req->wValue);
+      break;
+      
+    case HID_REQ_GET_PROTOCOL:
+      USBD_CtlSendData (pdev, 
+                        (uint8_t *)&USBD_HID_Protocol,
+                        1);    
+      break;
+      
+    case HID_REQ_SET_IDLE:
+      USBD_HID_IdleState = (uint8_t)(req->wValue >> 8);
+      break;
+      
+    case HID_REQ_GET_IDLE:
+      USBD_CtlSendData (pdev, 
+                        (uint8_t *)&USBD_HID_IdleState,
+                        1);        
+      break;      
+      
+    default:
+      USBD_CtlError (pdev, req);
+      return USBD_FAIL; 
+    }
+    break;
+    
+  case USB_REQ_TYPE_STANDARD:
+    switch (req->bRequest)
+    {
+    case USB_REQ_GET_DESCRIPTOR: 
+      if( req->wValue >> 8 == HID_REPORT_DESC)
+      {
+        len = MIN(HID_MOUSE_REPORT_DESC_SIZE , req->wLength);
+        pbuf = HID_MOUSE_ReportDesc;
+      }
+      else if( req->wValue >> 8 == HID_DESCRIPTOR_TYPE)
+      {
+        
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+        pbuf = USBD_HID_Desc;   
+#else
+        pbuf = USBD_HID_CfgDesc + 0x12;
+#endif 
+        len = MIN(USB_HID_DESC_SIZ , req->wLength);
+      }
+      
+      USBD_CtlSendData (pdev, 
+                        pbuf,
+                        len);
+      
+      break;
+      
+    case USB_REQ_GET_INTERFACE :
+      USBD_CtlSendData (pdev,
+                        (uint8_t *)&USBD_HID_AltSet,
+                        1);
+      break;
+      
+    case USB_REQ_SET_INTERFACE :
+      USBD_HID_AltSet = (uint8_t)(req->wValue);
+      break;
+    }
+  }
+  return USBD_OK;
+}
+
+/**
+  * @brief  USBD_HID_SendReport 
+  *         Send HID Report
+  * @param  pdev: device instance
+  * @param  buff: pointer to report
+  * @retval status
+  */
+uint8_t USBD_HID_SendReport     (USB_OTG_CORE_HANDLE  *pdev, 
+                                 uint8_t *report,
+                                 uint16_t len)
+{
+  if (pdev->dev.device_status == USB_OTG_CONFIGURED )
+  {
+    DCD_EP_Tx (pdev, HID_IN_EP, report, len);
+  }
+  return USBD_OK;
+}
+
+/**
+  * @brief  USBD_HID_GetCfgDesc 
+  *         return configuration descriptor
+  * @param  speed : current device speed
+  * @param  length : pointer data length
+  * @retval pointer to descriptor buffer
+  */
+static uint8_t  *USBD_HID_GetCfgDesc (uint8_t speed, uint16_t *length)
+{
+  *length = sizeof (USBD_HID_CfgDesc);
+  return USBD_HID_CfgDesc;
+}
+
+/**
+  * @brief  USBD_HID_DataIn
+  *         handle data IN Stage
+  * @param  pdev: device instance
+  * @param  epnum: endpoint index
+  * @retval status
+  */
+static uint8_t  USBD_HID_DataIn (void  *pdev, 
+                              uint8_t epnum)
+{
+  
+  /* Ensure that the FIFO is empty before a new transfer, this condition could 
+  be caused by  a new transfer before the end of the previous transfer */
+  DCD_EP_Flush(pdev, HID_IN_EP);
+  return USBD_OK;
+}
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/inc/usbd_msc_bot.h
@@ -1,0 +1,153 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_bot.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header for the usbd_msc_bot.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#include "usbd_core.h"
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_MSC_BOT_H
+#define __USBD_MSC_BOT_H
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup MSC_BOT
+  * @brief This file is the Header file for usbd_bot.c
+  * @{
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_Defines
+  * @{
+  */ 
+#define BOT_IDLE                      0       /* Idle state */
+#define BOT_DATA_OUT                  1       /* Data Out state */
+#define BOT_DATA_IN                   2       /* Data In state */
+#define BOT_LAST_DATA_IN              3       /* Last Data In Last */
+#define BOT_SEND_DATA                 4       /* Send Immediate data */
+
+#define BOT_CBW_SIGNATURE             0x43425355
+#define BOT_CSW_SIGNATURE             0x53425355
+#define BOT_CBW_LENGTH                31
+#define BOT_CSW_LENGTH                13
+
+/* CSW Status Definitions */
+#define CSW_CMD_PASSED                0x00
+#define CSW_CMD_FAILED                0x01
+#define CSW_PHASE_ERROR               0x02
+
+/* BOT Status */
+#define BOT_STATE_NORMAL              0
+#define BOT_STATE_RECOVERY            1
+#define BOT_STATE_ERROR               2
+
+
+#define DIR_IN                        0
+#define DIR_OUT                       1
+#define BOTH_DIR                      2
+
+/**
+  * @}
+  */ 
+
+/** @defgroup MSC_CORE_Private_TypesDefinitions
+  * @{
+  */ 
+
+typedef struct _MSC_BOT_CBW
+{
+  uint32_t dSignature;
+  uint32_t dTag;
+  uint32_t dDataLength;
+  uint8_t  bmFlags;
+  uint8_t  bLUN;
+  uint8_t  bCBLength;
+  uint8_t  CB[16];
+}
+MSC_BOT_CBW_TypeDef;
+
+
+typedef struct _MSC_BOT_CSW
+{
+  uint32_t dSignature;
+  uint32_t dTag;
+  uint32_t dDataResidue;
+  uint8_t  bStatus;
+}
+MSC_BOT_CSW_TypeDef;
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_Types
+  * @{
+  */
+
+extern uint8_t              MSC_BOT_Data[];
+extern uint16_t             MSC_BOT_DataLen;
+extern uint8_t              MSC_BOT_State;
+extern uint8_t              MSC_BOT_BurstMode;
+extern MSC_BOT_CBW_TypeDef  MSC_BOT_cbw;
+extern MSC_BOT_CSW_TypeDef  MSC_BOT_csw;
+/**
+  * @}
+  */ 
+/** @defgroup USBD_CORE_Exported_FunctionsPrototypes
+  * @{
+  */ 
+void MSC_BOT_Init (USB_OTG_CORE_HANDLE  *pdev);
+void MSC_BOT_Reset (USB_OTG_CORE_HANDLE  *pdev);
+void MSC_BOT_DeInit (USB_OTG_CORE_HANDLE  *pdev);
+void MSC_BOT_DataIn (USB_OTG_CORE_HANDLE  *pdev, 
+                     uint8_t epnum);
+
+void MSC_BOT_DataOut (USB_OTG_CORE_HANDLE  *pdev, 
+                      uint8_t epnum);
+
+void MSC_BOT_SendCSW (USB_OTG_CORE_HANDLE  *pdev,
+                             uint8_t CSW_Status);
+
+void  MSC_BOT_CplClrFeature (USB_OTG_CORE_HANDLE  *pdev, 
+                             uint8_t epnum);
+/**
+  * @}
+  */ 
+
+#endif /* __USBD_MSC_BOT_H */
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/inc/usbd_msc_core.h
@@ -1,0 +1,77 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_core.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header for the usbd_msc_core.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef _USB_MSC_CORE_H_
+#define _USB_MSC_CORE_H_
+
+#include  "usbd_ioreq.h"
+
+/** @addtogroup USBD_MSC_BOT
+  * @{
+  */
+  
+/** @defgroup USBD_MSC
+  * @brief This file is the Header file for USBD_msc.c
+  * @{
+  */ 
+
+
+/** @defgroup USBD_BOT_Exported_Defines
+  * @{
+  */ 
+
+
+#define BOT_GET_MAX_LUN              0xFE
+#define BOT_RESET                    0xFF
+#define USB_MSC_CONFIG_DESC_SIZ      32
+
+#define MSC_EPIN_SIZE                MSC_MAX_PACKET 
+#define MSC_EPOUT_SIZE               MSC_MAX_PACKET 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_Types
+  * @{
+  */ 
+
+extern USBD_Class_cb_TypeDef  USBD_MSC_cb;
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+#endif  // _USB_MSC_CORE_H_
+/**
+  * @}
+  */ 
+  
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/inc/usbd_msc_data.h
@@ -1,0 +1,104 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_data.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header for the usbd_msc_data.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef _USBD_MSC_DATA_H_
+#define _USBD_MSC_DATA_H_
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_conf.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USB_INFO
+  * @brief general defines for the usb device library file
+  * @{
+  */ 
+
+/** @defgroup USB_INFO_Exported_Defines
+  * @{
+  */ 
+#define MODE_SENSE6_LEN			 8
+#define MODE_SENSE10_LEN		 8
+#define LENGTH_INQUIRY_PAGE00		 7
+#define LENGTH_FORMAT_CAPACITIES    	20
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_INFO_Exported_TypesDefinitions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_INFO_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_INFO_Exported_Variables
+  * @{
+  */ 
+extern const uint8_t MSC_Page00_Inquiry_Data[];  
+extern const uint8_t MSC_Mode_Sense6_data[];
+extern const uint8_t MSC_Mode_Sense10_data[] ;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_INFO_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+#endif /* _USBD_MSC_DATA_H_ */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/inc/usbd_msc_mem.h
@@ -1,0 +1,112 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_mem.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header for the STORAGE DISK file file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef __USBD_MEM_H
+#define __USBD_MEM_H
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_def.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_MEM
+  * @brief header file for the storage disk file
+  * @{
+  */ 
+
+/** @defgroup USBD_MEM_Exported_Defines
+  * @{
+  */ 
+#define USBD_STD_INQUIRY_LENGTH		36
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_MEM_Exported_TypesDefinitions
+  * @{
+  */
+
+typedef struct _USBD_STORAGE
+{
+  int8_t (* Init) (uint8_t lun);
+  int8_t (* GetCapacity) (uint8_t lun, uint32_t *block_num, uint32_t *block_size);
+  int8_t (* IsReady) (uint8_t lun);
+  int8_t (* IsWriteProtected) (uint8_t lun);
+  int8_t (* Read) (uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);
+  int8_t (* Write)(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len);
+  int8_t (* GetMaxLun)(void);
+  int8_t *pInquiry;
+  
+}USBD_STORAGE_cb_TypeDef;
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_MEM_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_MEM_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_MEM_Exported_FunctionsPrototype
+  * @{
+  */ 
+extern USBD_STORAGE_cb_TypeDef *USBD_STORAGE_fops;
+/**
+  * @}
+  */ 
+
+#endif /* __USBD_MEM_H */
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/inc/usbd_msc_scsi.h
@@ -1,0 +1,195 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_scsi.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header for the usbd_msc_scsi.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_MSC_SCSI_H
+#define __USBD_MSC_SCSI_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_def.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_SCSI
+  * @brief header file for the storage disk file
+  * @{
+  */ 
+
+/** @defgroup USBD_SCSI_Exported_Defines
+  * @{
+  */ 
+
+#define SENSE_LIST_DEEPTH                          4
+
+/* SCSI Commands */
+#define SCSI_FORMAT_UNIT                            0x04
+#define SCSI_INQUIRY                                0x12
+#define SCSI_MODE_SELECT6                           0x15
+#define SCSI_MODE_SELECT10                          0x55
+#define SCSI_MODE_SENSE6                            0x1A
+#define SCSI_MODE_SENSE10                           0x5A
+#define SCSI_ALLOW_MEDIUM_REMOVAL                   0x1E
+#define SCSI_READ6                                  0x08
+#define SCSI_READ10                                 0x28
+#define SCSI_READ12                                 0xA8
+#define SCSI_READ16                                 0x88
+
+#define SCSI_READ_CAPACITY10                        0x25
+#define SCSI_READ_CAPACITY16                        0x9E
+
+#define SCSI_REQUEST_SENSE                          0x03
+#define SCSI_START_STOP_UNIT                        0x1B
+#define SCSI_TEST_UNIT_READY                        0x00
+#define SCSI_WRITE6                                 0x0A
+#define SCSI_WRITE10                                0x2A
+#define SCSI_WRITE12                                0xAA
+#define SCSI_WRITE16                                0x8A
+
+#define SCSI_VERIFY10                               0x2F
+#define SCSI_VERIFY12                               0xAF
+#define SCSI_VERIFY16                               0x8F
+
+#define SCSI_SEND_DIAGNOSTIC                        0x1D
+#define SCSI_READ_FORMAT_CAPACITIES                 0x23
+
+#define NO_SENSE                                    0
+#define RECOVERED_ERROR                             1
+#define NOT_READY                                   2
+#define MEDIUM_ERROR                                3
+#define HARDWARE_ERROR                              4
+#define ILLEGAL_REQUEST                             5
+#define UNIT_ATTENTION                              6
+#define DATA_PROTECT                                7
+#define BLANK_CHECK                                 8
+#define VENDOR_SPECIFIC                             9
+#define COPY_ABORTED                               10
+#define ABORTED_COMMAND                            11
+#define VOLUME_OVERFLOW                            13
+#define MISCOMPARE                                 14
+
+
+#define INVALID_CDB                                 0x20
+#define INVALID_FIELED_IN_COMMAND                   0x24
+#define PARAMETER_LIST_LENGTH_ERROR                 0x1A
+#define INVALID_FIELD_IN_PARAMETER_LIST             0x26
+#define ADDRESS_OUT_OF_RANGE                        0x21
+#define MEDIUM_NOT_PRESENT                          0x3A
+#define MEDIUM_HAVE_CHANGED                         0x28
+#define WRITE_PROTECTED                             0x27 
+#define UNRECOVERED_READ_ERROR			    0x11
+#define WRITE_FAULT				    0x03 
+
+#define READ_FORMAT_CAPACITY_DATA_LEN               0x0C
+#define READ_CAPACITY10_DATA_LEN                    0x08
+#define MODE_SENSE10_DATA_LEN                       0x08
+#define MODE_SENSE6_DATA_LEN                        0x04
+#define REQUEST_SENSE_DATA_LEN                      0x12
+#define STANDARD_INQUIRY_DATA_LEN                   0x24
+#define BLKVFY                                      0x04
+
+extern  uint8_t Page00_Inquiry_Data[];
+extern  uint8_t Standard_Inquiry_Data[];
+extern  uint8_t Standard_Inquiry_Data2[];
+extern  uint8_t Mode_Sense6_data[];
+extern  uint8_t Mode_Sense10_data[];
+extern  uint8_t Scsi_Sense_Data[];
+extern  uint8_t ReadCapacity10_Data[];
+extern  uint8_t ReadFormatCapacity_Data [];
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_SCSI_Exported_TypesDefinitions
+  * @{
+  */
+
+typedef struct _SENSE_ITEM {                
+  char Skey;
+  union {
+    struct _ASCs {
+      char ASC;
+      char ASCQ;
+    }b;
+    unsigned int	ASC;
+    char *pData;
+  } w;
+} SCSI_Sense_TypeDef; 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_SCSI_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_SCSI_Exported_Variables
+  * @{
+  */ 
+extern SCSI_Sense_TypeDef     SCSI_Sense [SENSE_LIST_DEEPTH]; 
+extern uint8_t   SCSI_Sense_Head;
+extern uint8_t   SCSI_Sense_Tail;
+
+/**
+  * @}
+  */ 
+/** @defgroup USBD_SCSI_Exported_FunctionsPrototype
+  * @{
+  */ 
+int8_t SCSI_ProcessCmd(USB_OTG_CORE_HANDLE  *pdev,
+                           uint8_t lun, 
+                           uint8_t *cmd);
+
+void   SCSI_SenseCode(uint8_t lun, 
+                    uint8_t sKey, 
+                    uint8_t ASC);
+
+/**
+  * @}
+  */ 
+
+#endif /* __USBD_MSC_SCSI_H */
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/src/usbd_msc_bot.c
@@ -1,0 +1,400 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_bot.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides all the BOT protocol core functions.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_msc_bot.h"
+#include "usbd_msc_scsi.h"
+#include "usbd_ioreq.h"
+#include "usbd_msc_mem.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup MSC_BOT 
+  * @brief BOT protocol module
+  * @{
+  */ 
+
+/** @defgroup MSC_BOT_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_BOT_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_BOT_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_BOT_Private_Variables
+  * @{
+  */ 
+uint16_t             MSC_BOT_DataLen;
+uint8_t              MSC_BOT_State;
+uint8_t              MSC_BOT_Status;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t              MSC_BOT_Data[MSC_MEDIA_PACKET] __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN MSC_BOT_CBW_TypeDef  MSC_BOT_cbw __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN MSC_BOT_CSW_TypeDef  MSC_BOT_csw __ALIGN_END ;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_BOT_Private_FunctionPrototypes
+  * @{
+  */ 
+static void MSC_BOT_CBW_Decode (USB_OTG_CORE_HANDLE  *pdev);
+
+static void MSC_BOT_SendData (USB_OTG_CORE_HANDLE  *pdev, 
+                              uint8_t* pbuf, 
+                              uint16_t len);
+
+static void MSC_BOT_Abort(USB_OTG_CORE_HANDLE  *pdev);
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_BOT_Private_Functions
+  * @{
+  */ 
+
+
+
+/**
+* @brief  MSC_BOT_Init
+*         Initialize the BOT Process
+* @param  pdev: device instance
+* @retval None
+*/
+void MSC_BOT_Init (USB_OTG_CORE_HANDLE  *pdev)
+{
+  MSC_BOT_State = BOT_IDLE;
+  MSC_BOT_Status = BOT_STATE_NORMAL;
+  USBD_STORAGE_fops->Init(0);
+  
+  DCD_EP_Flush(pdev, MSC_OUT_EP);
+  DCD_EP_Flush(pdev, MSC_IN_EP);
+  /* Prapare EP to Receive First BOT Cmd */
+  DCD_EP_PrepareRx (pdev,
+                    MSC_OUT_EP,
+                    (uint8_t *)&MSC_BOT_cbw,
+                    BOT_CBW_LENGTH);    
+}
+
+/**
+* @brief  MSC_BOT_Reset
+*         Reset the BOT Machine
+* @param  pdev: device instance
+* @retval  None
+*/
+void MSC_BOT_Reset (USB_OTG_CORE_HANDLE  *pdev)
+{
+  MSC_BOT_State = BOT_IDLE;
+  MSC_BOT_Status = BOT_STATE_RECOVERY;
+  /* Prapare EP to Receive First BOT Cmd */
+  DCD_EP_PrepareRx (pdev,
+                    MSC_OUT_EP,
+                    (uint8_t *)&MSC_BOT_cbw,
+                    BOT_CBW_LENGTH);    
+}
+
+/**
+* @brief  MSC_BOT_DeInit
+*         Uninitialize the BOT Machine
+* @param  pdev: device instance
+* @retval None
+*/
+void MSC_BOT_DeInit (USB_OTG_CORE_HANDLE  *pdev)
+{
+  MSC_BOT_State = BOT_IDLE;
+}
+
+/**
+* @brief  MSC_BOT_DataIn
+*         Handle BOT IN data stage
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval None
+*/
+void MSC_BOT_DataIn (USB_OTG_CORE_HANDLE  *pdev, 
+                     uint8_t epnum)
+{
+  
+  switch (MSC_BOT_State)
+  {
+  case BOT_DATA_IN:
+    if(SCSI_ProcessCmd(pdev,
+                        MSC_BOT_cbw.bLUN,
+                        &MSC_BOT_cbw.CB[0]) < 0)
+    {
+      MSC_BOT_SendCSW (pdev, CSW_CMD_FAILED);
+    }
+    break;
+    
+  case BOT_SEND_DATA:
+  case BOT_LAST_DATA_IN:
+    MSC_BOT_SendCSW (pdev, CSW_CMD_PASSED);
+    
+    break;
+    
+  default:
+    break;
+  }
+}
+/**
+* @brief  MSC_BOT_DataOut
+*         Proccess MSC OUT data
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval None
+*/
+void MSC_BOT_DataOut (USB_OTG_CORE_HANDLE  *pdev, 
+                      uint8_t epnum)
+{
+  switch (MSC_BOT_State)
+  {
+  case BOT_IDLE:
+    MSC_BOT_CBW_Decode(pdev);
+    break;
+    
+  case BOT_DATA_OUT:
+    
+    if(SCSI_ProcessCmd(pdev,
+                        MSC_BOT_cbw.bLUN,
+                        &MSC_BOT_cbw.CB[0]) < 0)
+    {
+      MSC_BOT_SendCSW (pdev, CSW_CMD_FAILED);
+    }
+
+    break;
+    
+  default:
+    break;
+  }
+  
+}
+
+/**
+* @brief  MSC_BOT_CBW_Decode
+*         Decode the CBW command and set the BOT state machine accordingtly  
+* @param  pdev: device instance
+* @retval None
+*/
+static void  MSC_BOT_CBW_Decode (USB_OTG_CORE_HANDLE  *pdev)
+{
+
+  MSC_BOT_csw.dTag = MSC_BOT_cbw.dTag;
+  MSC_BOT_csw.dDataResidue = MSC_BOT_cbw.dDataLength;
+  
+  if ((USBD_GetRxCount (pdev ,MSC_OUT_EP) != BOT_CBW_LENGTH) ||
+      (MSC_BOT_cbw.dSignature != BOT_CBW_SIGNATURE)||
+        (MSC_BOT_cbw.bLUN > 1) || 
+          (MSC_BOT_cbw.bCBLength < 1) || 
+            (MSC_BOT_cbw.bCBLength > 16))
+  {
+    
+    SCSI_SenseCode(MSC_BOT_cbw.bLUN, 
+                   ILLEGAL_REQUEST, 
+                   INVALID_CDB);
+     MSC_BOT_Status = BOT_STATE_ERROR;   
+    MSC_BOT_Abort(pdev);
+ 
+  }
+  else
+  {
+    if(SCSI_ProcessCmd(pdev,
+                              MSC_BOT_cbw.bLUN,
+                              &MSC_BOT_cbw.CB[0]) < 0)
+    {
+      MSC_BOT_Abort(pdev);
+    }
+    /*Burst xfer handled internally*/
+    else if ((MSC_BOT_State != BOT_DATA_IN) && 
+             (MSC_BOT_State != BOT_DATA_OUT) &&
+             (MSC_BOT_State != BOT_LAST_DATA_IN)) 
+    {
+      if (MSC_BOT_DataLen > 0)
+      {
+        MSC_BOT_SendData(pdev,
+                         MSC_BOT_Data, 
+                         MSC_BOT_DataLen);
+      }
+      else if (MSC_BOT_DataLen == 0) 
+      {
+        MSC_BOT_SendCSW (pdev,
+                         CSW_CMD_PASSED);
+      }
+    }
+  }
+}
+
+/**
+* @brief  MSC_BOT_SendData
+*         Send the requested data
+* @param  pdev: device instance
+* @param  buf: pointer to data buffer
+* @param  len: Data Length
+* @retval None
+*/
+static void  MSC_BOT_SendData(USB_OTG_CORE_HANDLE  *pdev,
+                              uint8_t* buf, 
+                              uint16_t len)
+{
+  
+  len = MIN (MSC_BOT_cbw.dDataLength, len);
+  MSC_BOT_csw.dDataResidue -= len;
+  MSC_BOT_csw.bStatus = CSW_CMD_PASSED;
+  MSC_BOT_State = BOT_SEND_DATA;
+  
+  DCD_EP_Tx (pdev, MSC_IN_EP, buf, len);  
+}
+
+/**
+* @brief  MSC_BOT_SendCSW
+*         Send the Command Status Wrapper
+* @param  pdev: device instance
+* @param  status : CSW status
+* @retval None
+*/
+void  MSC_BOT_SendCSW (USB_OTG_CORE_HANDLE  *pdev,
+                              uint8_t CSW_Status)
+{
+  MSC_BOT_csw.dSignature = BOT_CSW_SIGNATURE;
+  MSC_BOT_csw.bStatus = CSW_Status;
+  MSC_BOT_State = BOT_IDLE;
+  
+  DCD_EP_Tx (pdev, 
+             MSC_IN_EP, 
+             (uint8_t *)&MSC_BOT_csw, 
+             BOT_CSW_LENGTH);
+  
+  /* Prapare EP to Receive next Cmd */
+  DCD_EP_PrepareRx (pdev,
+                    MSC_OUT_EP,
+                    (uint8_t *)&MSC_BOT_cbw, 
+                    BOT_CBW_LENGTH);  
+  
+}
+
+/**
+* @brief  MSC_BOT_Abort
+*         Abort the current transfer
+* @param  pdev: device instance
+* @retval status
+*/
+
+static void  MSC_BOT_Abort (USB_OTG_CORE_HANDLE  *pdev)
+{
+
+  if ((MSC_BOT_cbw.bmFlags == 0) && 
+      (MSC_BOT_cbw.dDataLength != 0) &&
+      (MSC_BOT_Status == BOT_STATE_NORMAL) )
+  {
+    DCD_EP_Stall(pdev, MSC_OUT_EP );
+  }
+  DCD_EP_Stall(pdev, MSC_IN_EP);
+  
+  if(MSC_BOT_Status == BOT_STATE_ERROR)
+  {
+    DCD_EP_PrepareRx (pdev,
+                      MSC_OUT_EP,
+                      (uint8_t *)&MSC_BOT_cbw, 
+                      BOT_CBW_LENGTH);    
+  }
+}
+
+/**
+* @brief  MSC_BOT_CplClrFeature
+*         Complete the clear feature request
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval None
+*/
+
+void  MSC_BOT_CplClrFeature (USB_OTG_CORE_HANDLE  *pdev, uint8_t epnum)
+{
+  if(MSC_BOT_Status == BOT_STATE_ERROR )/* Bad CBW Signature */
+  {
+    DCD_EP_Stall(pdev, MSC_IN_EP);
+    MSC_BOT_Status = BOT_STATE_NORMAL;    
+  }
+  else if(((epnum & 0x80) == 0x80) && ( MSC_BOT_Status != BOT_STATE_RECOVERY))
+  {
+    MSC_BOT_SendCSW (pdev, CSW_CMD_FAILED);
+  }
+  
+}
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/src/usbd_msc_core.c
@@ -1,0 +1,496 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_core.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides all the MSC core functions.
+  *
+  * @verbatim
+  *      
+  *          ===================================================================      
+  *                                MSC Class  Description
+  *          =================================================================== 
+  *           This module manages the MSC class V1.0 following the "Universal 
+  *           Serial Bus Mass Storage Class (MSC) Bulk-Only Transport (BOT) Version 1.0
+  *           Sep. 31, 1999".
+  *           This driver implements the following aspects of the specification:
+  *             - Bulk-Only Transport protocol
+  *             - Subclass : SCSI transparent command set (ref. SCSI Primary Commands - 3 (SPC-3))
+  *      
+  *  @endverbatim
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_msc_mem.h"
+#include "usbd_msc_core.h"
+#include "usbd_msc_bot.h"
+#include "usbd_req.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup MSC_CORE 
+  * @brief Mass storage core module
+  * @{
+  */ 
+
+/** @defgroup MSC_CORE_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_CORE_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_CORE_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_CORE_Private_FunctionPrototypes
+  * @{
+  */ 
+uint8_t  USBD_MSC_Init (void  *pdev, 
+                            uint8_t cfgidx);
+
+uint8_t  USBD_MSC_DeInit (void  *pdev, 
+                              uint8_t cfgidx);
+
+uint8_t  USBD_MSC_Setup (void  *pdev, 
+                             USB_SETUP_REQ *req);
+
+uint8_t  USBD_MSC_DataIn (void  *pdev, 
+                              uint8_t epnum);
+
+
+uint8_t  USBD_MSC_DataOut (void  *pdev, 
+                               uint8_t epnum);
+
+uint8_t  *USBD_MSC_GetCfgDesc (uint8_t speed, 
+                                      uint16_t *length);
+
+#ifdef USB_OTG_HS_CORE  
+uint8_t  *USBD_MSC_GetOtherCfgDesc (uint8_t speed, 
+                                      uint16_t *length);
+#endif
+
+
+uint8_t USBD_MSC_CfgDesc[USB_MSC_CONFIG_DESC_SIZ];
+
+
+
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_CORE_Private_Variables
+  * @{
+  */ 
+
+
+USBD_Class_cb_TypeDef  USBD_MSC_cb = 
+{
+  USBD_MSC_Init,
+  USBD_MSC_DeInit,
+  USBD_MSC_Setup,
+  NULL, /*EP0_TxSent*/  
+  NULL, /*EP0_RxReady*/
+  USBD_MSC_DataIn,
+  USBD_MSC_DataOut,
+  NULL, /*SOF */ 
+  NULL,  
+  NULL,     
+  USBD_MSC_GetCfgDesc,
+#ifdef USB_OTG_HS_CORE  
+  USBD_MSC_GetOtherCfgDesc,
+#endif
+};
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+/* USB Mass storage device Configuration Descriptor */
+/*   All Descriptors (Configuration, Interface, Endpoint, Class, Vendor */
+__ALIGN_BEGIN uint8_t USBD_MSC_CfgDesc[USB_MSC_CONFIG_DESC_SIZ] __ALIGN_END =
+{
+  
+  0x09,   /* bLength: Configuation Descriptor size */
+  USB_DESC_TYPE_CONFIGURATION,   /* bDescriptorType: Configuration */
+  USB_MSC_CONFIG_DESC_SIZ,
+  
+  0x00,
+  0x01,   /* bNumInterfaces: 1 interface */
+  0x01,   /* bConfigurationValue: */
+  0x04,   /* iConfiguration: */
+  0xC0,   /* bmAttributes: */
+  0x32,   /* MaxPower 100 mA */
+  
+  /********************  Mass Storage interface ********************/
+  0x09,   /* bLength: Interface Descriptor size */
+  0x04,   /* bDescriptorType: */
+  0x00,   /* bInterfaceNumber: Number of Interface */
+  0x00,   /* bAlternateSetting: Alternate setting */
+  0x02,   /* bNumEndpoints*/
+  0x08,   /* bInterfaceClass: MSC Class */
+  0x06,   /* bInterfaceSubClass : SCSI transparent*/
+  0x50,   /* nInterfaceProtocol */
+  0x05,          /* iInterface: */
+  /********************  Mass Storage Endpoints ********************/
+  0x07,   /*Endpoint descriptor length = 7*/
+  0x05,   /*Endpoint descriptor type */
+  MSC_IN_EP,   /*Endpoint address (IN, address 1) */
+  0x02,   /*Bulk endpoint type */
+  LOBYTE(MSC_MAX_PACKET),
+  HIBYTE(MSC_MAX_PACKET),
+  0x00,   /*Polling interval in milliseconds */
+  
+  0x07,   /*Endpoint descriptor length = 7 */
+  0x05,   /*Endpoint descriptor type */
+  MSC_OUT_EP,   /*Endpoint address (OUT, address 1) */
+  0x02,   /*Bulk endpoint type */
+  LOBYTE(MSC_MAX_PACKET),
+  HIBYTE(MSC_MAX_PACKET),
+  0x00     /*Polling interval in milliseconds*/
+};
+#ifdef USB_OTG_HS_CORE 
+ #ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+   #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+     #pragma data_alignment=4   
+   #endif
+ #endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t USBD_MSC_OtherCfgDesc[USB_MSC_CONFIG_DESC_SIZ] __ALIGN_END =
+{
+  
+  0x09,   /* bLength: Configuation Descriptor size */
+  USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION,   
+  USB_MSC_CONFIG_DESC_SIZ,
+  
+  0x00,
+  0x01,   /* bNumInterfaces: 1 interface */
+  0x01,   /* bConfigurationValue: */
+  0x04,   /* iConfiguration: */
+  0xC0,   /* bmAttributes: */
+  0x32,   /* MaxPower 100 mA */
+  
+  /********************  Mass Storage interface ********************/
+  0x09,   /* bLength: Interface Descriptor size */
+  0x04,   /* bDescriptorType: */
+  0x00,   /* bInterfaceNumber: Number of Interface */
+  0x00,   /* bAlternateSetting: Alternate setting */
+  0x02,   /* bNumEndpoints*/
+  0x08,   /* bInterfaceClass: MSC Class */
+  0x06,   /* bInterfaceSubClass : SCSI transparent command set*/
+  0x50,   /* nInterfaceProtocol */
+  0x05,          /* iInterface: */
+  /********************  Mass Storage Endpoints ********************/
+  0x07,   /*Endpoint descriptor length = 7*/
+  0x05,   /*Endpoint descriptor type */
+  MSC_IN_EP,   /*Endpoint address (IN, address 1) */
+  0x02,   /*Bulk endpoint type */
+  0x40,
+  0x00,
+  0x00,   /*Polling interval in milliseconds */
+  
+  0x07,   /*Endpoint descriptor length = 7 */
+  0x05,   /*Endpoint descriptor type */
+  MSC_OUT_EP,   /*Endpoint address (OUT, address 1) */
+  0x02,   /*Bulk endpoint type */
+  0x40,
+  0x00,
+  0x00     /*Polling interval in milliseconds*/
+};
+#endif 
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN static uint8_t  USBD_MSC_MaxLun  __ALIGN_END = 0;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN static uint8_t  USBD_MSC_AltSet  __ALIGN_END = 0;
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_CORE_Private_Functions
+  * @{
+  */ 
+
+/**
+* @brief  USBD_MSC_Init
+*         Initialize  the mass storage configuration
+* @param  pdev: device instance
+* @param  cfgidx: configuration index
+* @retval status
+*/
+uint8_t  USBD_MSC_Init (void  *pdev, 
+                            uint8_t cfgidx)
+{
+  USBD_MSC_DeInit(pdev , cfgidx );
+  
+  /* Open EP IN */
+  DCD_EP_Open(pdev,
+              MSC_IN_EP,
+              MSC_EPIN_SIZE,
+              USB_OTG_EP_BULK);
+  
+  /* Open EP OUT */
+  DCD_EP_Open(pdev,
+              MSC_OUT_EP,
+              MSC_EPOUT_SIZE,
+              USB_OTG_EP_BULK);
+ 
+  /* Init the BOT  layer */
+  MSC_BOT_Init(pdev); 
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_MSC_DeInit
+*         DeInitilaize  the mass storage configuration
+* @param  pdev: device instance
+* @param  cfgidx: configuration index
+* @retval status
+*/
+uint8_t  USBD_MSC_DeInit (void  *pdev, 
+                              uint8_t cfgidx)
+{
+  /* Close MSC EPs */
+  DCD_EP_Close (pdev , MSC_IN_EP);
+  DCD_EP_Close (pdev , MSC_OUT_EP);
+  
+  /* Un Init the BOT layer */
+  MSC_BOT_DeInit(pdev);   
+  return USBD_OK;
+}
+/**
+* @brief  USBD_MSC_Setup
+*         Handle the MSC specific requests
+* @param  pdev: device instance
+* @param  req: USB request
+* @retval status
+*/
+uint8_t  USBD_MSC_Setup (void  *pdev, USB_SETUP_REQ *req)
+{
+  
+  switch (req->bmRequest & USB_REQ_TYPE_MASK)
+  {
+
+  /* Class request */
+  case USB_REQ_TYPE_CLASS :
+    switch (req->bRequest)
+    {
+    case BOT_GET_MAX_LUN :
+
+      if((req->wValue  == 0) && 
+         (req->wLength == 1) &&
+         ((req->bmRequest & 0x80) == 0x80))
+      {
+        USBD_MSC_MaxLun = USBD_STORAGE_fops->GetMaxLun();
+        if(USBD_MSC_MaxLun > 0)
+        {
+           USBD_CtlSendData (pdev,
+                             &USBD_MSC_MaxLun,
+                              1);
+        }
+        else
+        {
+          USBD_CtlError(pdev , req);
+          return USBD_FAIL; 
+          
+        }
+      }
+      else
+      {
+         USBD_CtlError(pdev , req);
+         return USBD_FAIL; 
+      }
+      break;
+      
+    case BOT_RESET :
+      if((req->wValue  == 0) && 
+         (req->wLength == 0) &&
+        ((req->bmRequest & 0x80) != 0x80))
+      {      
+         MSC_BOT_Reset(pdev);
+      }
+      else
+      {
+         USBD_CtlError(pdev , req);
+         return USBD_FAIL; 
+      }
+      break;
+
+    default:
+       USBD_CtlError(pdev , req);
+       return USBD_FAIL; 
+    }
+    break;
+  /* Interface & Endpoint request */
+  case USB_REQ_TYPE_STANDARD:
+    switch (req->bRequest)
+    {
+    case USB_REQ_GET_INTERFACE :
+      USBD_CtlSendData (pdev,
+                        &USBD_MSC_AltSet,
+                        1);
+      break;
+      
+    case USB_REQ_SET_INTERFACE :
+      USBD_MSC_AltSet = (uint8_t)(req->wValue);
+      break;
+    
+    case USB_REQ_CLEAR_FEATURE:  
+      
+      /* Flush the FIFO and Clear the stall status */    
+      DCD_EP_Flush(pdev, (uint8_t)req->wIndex);
+      
+      /* Re-activate the EP */      
+      DCD_EP_Close (pdev , (uint8_t)req->wIndex);
+      if((((uint8_t)req->wIndex) & 0x80) == 0x80)
+      {
+        DCD_EP_Open(pdev,
+                    ((uint8_t)req->wIndex),
+                    MSC_EPIN_SIZE,
+                    USB_OTG_EP_BULK);
+      }
+      else
+      {
+        DCD_EP_Open(pdev,
+                    ((uint8_t)req->wIndex),
+                    MSC_EPOUT_SIZE,
+                    USB_OTG_EP_BULK);
+      }
+      
+      /* Handle BOT error */
+      MSC_BOT_CplClrFeature(pdev, (uint8_t)req->wIndex);
+      break;
+      
+    }  
+    break;
+   
+  default:
+    break;
+  }
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_MSC_DataIn
+*         handle data IN Stage
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval status
+*/
+uint8_t  USBD_MSC_DataIn (void  *pdev, 
+                              uint8_t epnum)
+{
+  MSC_BOT_DataIn(pdev , epnum);
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_MSC_DataOut
+*         handle data OUT Stage
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval status
+*/
+uint8_t  USBD_MSC_DataOut (void  *pdev, 
+                               uint8_t epnum)
+{
+  MSC_BOT_DataOut(pdev , epnum);
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_MSC_GetCfgDesc 
+*         return configuration descriptor
+* @param  speed : current device speed
+* @param  length : pointer data length
+* @retval pointer to descriptor buffer
+*/
+uint8_t  *USBD_MSC_GetCfgDesc (uint8_t speed, uint16_t *length)
+{
+  *length = sizeof (USBD_MSC_CfgDesc);
+  return USBD_MSC_CfgDesc;
+}
+
+/**
+* @brief  USBD_MSC_GetOtherCfgDesc 
+*         return other speed configuration descriptor
+* @param  speed : current device speed
+* @param  length : pointer data length
+* @retval pointer to descriptor buffer
+*/
+#ifdef USB_OTG_HS_CORE  
+uint8_t  *USBD_MSC_GetOtherCfgDesc (uint8_t speed, 
+                                      uint16_t *length)
+{
+  *length = sizeof (USBD_MSC_OtherCfgDesc);
+  return USBD_MSC_OtherCfgDesc;
+}
+#endif
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/src/usbd_msc_data.c
@@ -1,0 +1,134 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_data.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides all the vital inquiry pages and sense data.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_msc_data.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup MSC_DATA 
+  * @brief Mass storage info/data module
+  * @{
+  */ 
+
+/** @defgroup MSC_DATA_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_DATA_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_DATA_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_DATA_Private_Variables
+  * @{
+  */ 
+
+
+/* USB Mass storage Page 0 Inquiry Data */
+const uint8_t  MSC_Page00_Inquiry_Data[] = {//7						
+	0x00,		
+	0x00, 
+	0x00, 
+	(LENGTH_INQUIRY_PAGE00 - 4),
+	0x00, 
+	0x80, 
+	0x83 
+};  
+/* USB Mass storage sense 6  Data */
+const uint8_t  MSC_Mode_Sense6_data[] = {
+	0x00,
+	0x00,
+	0x00,
+	0x00,
+	0x00,
+	0x00, 
+	0x00,
+	0x00
+};	
+/* USB Mass storage sense 10  Data */
+const uint8_t  MSC_Mode_Sense10_data[] = {
+	0x00,
+	0x06, 
+	0x00, 
+	0x00, 
+	0x00, 
+	0x00, 
+	0x00, 
+	0x00
+};
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_DATA_Private_FunctionPrototypes
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_DATA_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/src/usbd_msc_scsi.c
@@ -1,0 +1,728 @@
+/**
+  ******************************************************************************
+  * @file    usbd_msc_scsi.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides all the USBD SCSI layer functions.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_msc_bot.h"
+#include "usbd_msc_scsi.h"
+#include "usbd_msc_mem.h"
+#include "usbd_msc_data.h"
+
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup MSC_SCSI 
+  * @brief Mass storage SCSI layer module
+  * @{
+  */ 
+
+/** @defgroup MSC_SCSI_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_SCSI_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_SCSI_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_SCSI_Private_Variables
+  * @{
+  */ 
+
+SCSI_Sense_TypeDef     SCSI_Sense [SENSE_LIST_DEEPTH];
+uint8_t   SCSI_Sense_Head;
+uint8_t   SCSI_Sense_Tail;
+
+uint32_t  SCSI_blk_size;
+uint32_t  SCSI_blk_nbr;
+
+uint32_t  SCSI_blk_addr;
+uint32_t  SCSI_blk_len;
+
+USB_OTG_CORE_HANDLE  *cdev;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_SCSI_Private_FunctionPrototypes
+  * @{
+  */ 
+static int8_t SCSI_TestUnitReady(uint8_t lun, uint8_t *params);
+static int8_t SCSI_Inquiry(uint8_t lun, uint8_t *params);
+static int8_t SCSI_ReadFormatCapacity(uint8_t lun, uint8_t *params);
+static int8_t SCSI_ReadCapacity10(uint8_t lun, uint8_t *params);
+static int8_t SCSI_RequestSense (uint8_t lun, uint8_t *params);
+static int8_t SCSI_StartStopUnit(uint8_t lun, uint8_t *params);
+static int8_t SCSI_ModeSense6 (uint8_t lun, uint8_t *params);
+static int8_t SCSI_ModeSense10 (uint8_t lun, uint8_t *params);
+static int8_t SCSI_Write10(uint8_t lun , uint8_t *params);
+static int8_t SCSI_Read10(uint8_t lun , uint8_t *params);
+static int8_t SCSI_Verify10(uint8_t lun, uint8_t *params);
+static int8_t SCSI_CheckAddressRange (uint8_t lun , 
+                                      uint32_t blk_offset , 
+                                      uint16_t blk_nbr);
+static int8_t SCSI_ProcessRead (uint8_t lun);
+
+static int8_t SCSI_ProcessWrite (uint8_t lun);
+/**
+  * @}
+  */ 
+
+
+/** @defgroup MSC_SCSI_Private_Functions
+  * @{
+  */ 
+
+
+/**
+* @brief  SCSI_ProcessCmd
+*         Process SCSI commands
+* @param  pdev: device instance
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+int8_t SCSI_ProcessCmd(USB_OTG_CORE_HANDLE  *pdev,
+                           uint8_t lun, 
+                           uint8_t *params)
+{
+  cdev = pdev;
+  
+  switch (params[0])
+  {
+  case SCSI_TEST_UNIT_READY:
+    return SCSI_TestUnitReady(lun, params);
+    
+  case SCSI_REQUEST_SENSE:
+    return SCSI_RequestSense (lun, params);
+  case SCSI_INQUIRY:
+    return SCSI_Inquiry(lun, params);
+    
+  case SCSI_START_STOP_UNIT:
+    return SCSI_StartStopUnit(lun, params);
+    
+  case SCSI_ALLOW_MEDIUM_REMOVAL:
+    return SCSI_StartStopUnit(lun, params);
+    
+  case SCSI_MODE_SENSE6:
+    return SCSI_ModeSense6 (lun, params);
+    
+  case SCSI_MODE_SENSE10:
+    return SCSI_ModeSense10 (lun, params);
+    
+  case SCSI_READ_FORMAT_CAPACITIES:
+    return SCSI_ReadFormatCapacity(lun, params);
+    
+  case SCSI_READ_CAPACITY10:
+    return SCSI_ReadCapacity10(lun, params);
+    
+  case SCSI_READ10:
+    return SCSI_Read10(lun, params); 
+    
+  case SCSI_WRITE10:
+    return SCSI_Write10(lun, params);
+    
+  case SCSI_VERIFY10:
+    return SCSI_Verify10(lun, params);
+    
+  default:
+    SCSI_SenseCode(lun,
+                   ILLEGAL_REQUEST, 
+                   INVALID_CDB);    
+    return -1;
+  }
+}
+
+
+/**
+* @brief  SCSI_TestUnitReady
+*         Process SCSI Test Unit Ready Command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t SCSI_TestUnitReady(uint8_t lun, uint8_t *params)
+{
+  
+  /* case 9 : Hi > D0 */
+  if (MSC_BOT_cbw.dDataLength != 0)
+  {
+    SCSI_SenseCode(MSC_BOT_cbw.bLUN, 
+                   ILLEGAL_REQUEST, 
+                   INVALID_CDB);
+    return -1;
+  }  
+  
+  if(USBD_STORAGE_fops->IsReady(lun) !=0 )
+  {
+    SCSI_SenseCode(lun,
+                   NOT_READY, 
+                   MEDIUM_NOT_PRESENT);
+    return -1;
+  } 
+  MSC_BOT_DataLen = 0;
+  return 0;
+}
+
+/**
+* @brief  SCSI_Inquiry
+*         Process Inquiry command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t  SCSI_Inquiry(uint8_t lun, uint8_t *params)
+{
+  uint8_t* pPage;
+  uint16_t len;
+  
+  if (params[1] & 0x01)/*Evpd is set*/
+  {
+    pPage = (uint8_t *)MSC_Page00_Inquiry_Data;
+    len = LENGTH_INQUIRY_PAGE00;
+  }
+  else
+  {
+    
+    pPage = (uint8_t *)&USBD_STORAGE_fops->pInquiry[lun * USBD_STD_INQUIRY_LENGTH];
+    len = pPage[4] + 5;
+    
+    if (params[4] <= len)
+    {
+      len = params[4];
+    }
+  }
+  MSC_BOT_DataLen = len;
+  
+  while (len) 
+  {
+    len--;
+    MSC_BOT_Data[len] = pPage[len];
+  }
+  return 0;
+}
+
+/**
+* @brief  SCSI_ReadCapacity10
+*         Process Read Capacity 10 command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t SCSI_ReadCapacity10(uint8_t lun, uint8_t *params)
+{
+  
+  if(USBD_STORAGE_fops->GetCapacity(lun, &SCSI_blk_nbr, &SCSI_blk_size) != 0)
+  {
+    SCSI_SenseCode(lun,
+                   NOT_READY, 
+                   MEDIUM_NOT_PRESENT);
+    return -1;
+  } 
+  else
+  {
+    
+    MSC_BOT_Data[0] = (uint8_t)(SCSI_blk_nbr - 1 >> 24);
+    MSC_BOT_Data[1] = (uint8_t)(SCSI_blk_nbr - 1 >> 16);
+    MSC_BOT_Data[2] = (uint8_t)(SCSI_blk_nbr - 1 >>  8);
+    MSC_BOT_Data[3] = (uint8_t)(SCSI_blk_nbr - 1);
+    
+    MSC_BOT_Data[4] = (uint8_t)(SCSI_blk_size >>  24);
+    MSC_BOT_Data[5] = (uint8_t)(SCSI_blk_size >>  16);
+    MSC_BOT_Data[6] = (uint8_t)(SCSI_blk_size >>  8);
+    MSC_BOT_Data[7] = (uint8_t)(SCSI_blk_size);
+    
+    MSC_BOT_DataLen = 8;
+    return 0;
+  }
+}
+/**
+* @brief  SCSI_ReadFormatCapacity
+*         Process Read Format Capacity command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t SCSI_ReadFormatCapacity(uint8_t lun, uint8_t *params)
+{
+  
+  uint32_t blk_size;
+  uint32_t blk_nbr;
+  uint16_t i;
+  
+  for(i=0 ; i < 12 ; i++) 
+  {
+    MSC_BOT_Data[i] = 0;
+  }
+  
+  if(USBD_STORAGE_fops->GetCapacity(lun, &blk_nbr, &blk_size) != 0)
+  {
+    SCSI_SenseCode(lun,
+                   NOT_READY, 
+                   MEDIUM_NOT_PRESENT);
+    return -1;
+  } 
+  else
+  {
+    MSC_BOT_Data[3] = 0x08;
+    MSC_BOT_Data[4] = (uint8_t)(blk_nbr - 1 >> 24);
+    MSC_BOT_Data[5] = (uint8_t)(blk_nbr - 1 >> 16);
+    MSC_BOT_Data[6] = (uint8_t)(blk_nbr - 1 >>  8);
+    MSC_BOT_Data[7] = (uint8_t)(blk_nbr - 1);
+    
+    MSC_BOT_Data[8] = 0x02;
+    MSC_BOT_Data[9] = (uint8_t)(blk_size >>  16);
+    MSC_BOT_Data[10] = (uint8_t)(blk_size >>  8);
+    MSC_BOT_Data[11] = (uint8_t)(blk_size);
+    
+    MSC_BOT_DataLen = 12;
+    return 0;
+  }
+}
+/**
+* @brief  SCSI_ModeSense6
+*         Process Mode Sense6 command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t SCSI_ModeSense6 (uint8_t lun, uint8_t *params)
+{
+  
+  uint16_t len = 8 ;
+  MSC_BOT_DataLen = len;
+  
+  while (len) 
+  {
+    len--;
+    MSC_BOT_Data[len] = MSC_Mode_Sense6_data[len];
+  }
+  return 0;
+}
+
+/**
+* @brief  SCSI_ModeSense10
+*         Process Mode Sense10 command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t SCSI_ModeSense10 (uint8_t lun, uint8_t *params)
+{
+ uint16_t len = 8;
+
+ MSC_BOT_DataLen = len;
+
+ while (len) 
+  {
+    len--;
+    MSC_BOT_Data[len] = MSC_Mode_Sense10_data[len];
+  }
+  return 0;
+}
+
+/**
+* @brief  SCSI_RequestSense
+*         Process Request Sense command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+
+static int8_t SCSI_RequestSense (uint8_t lun, uint8_t *params)
+{
+  uint8_t i;
+  
+  for(i=0 ; i < REQUEST_SENSE_DATA_LEN ; i++) 
+  {
+    MSC_BOT_Data[i] = 0;
+  }
+  
+  MSC_BOT_Data[0]	= 0x70;		
+  MSC_BOT_Data[7]	= REQUEST_SENSE_DATA_LEN - 6;	
+  
+  if((SCSI_Sense_Head != SCSI_Sense_Tail)) {
+    
+    MSC_BOT_Data[2]     = SCSI_Sense[SCSI_Sense_Head].Skey;		
+    MSC_BOT_Data[12]    = SCSI_Sense[SCSI_Sense_Head].w.b.ASCQ;	
+    MSC_BOT_Data[13]    = SCSI_Sense[SCSI_Sense_Head].w.b.ASC;	
+    SCSI_Sense_Head++;
+    
+    if (SCSI_Sense_Head == SENSE_LIST_DEEPTH)
+    {
+      SCSI_Sense_Head = 0;
+    }
+  }
+  MSC_BOT_DataLen = REQUEST_SENSE_DATA_LEN;  
+  
+  if (params[4] <= REQUEST_SENSE_DATA_LEN)
+  {
+    MSC_BOT_DataLen = params[4];
+  }
+  return 0;
+}
+
+/**
+* @brief  SCSI_SenseCode
+*         Load the last error code in the error list
+* @param  lun: Logical unit number
+* @param  sKey: Sense Key
+* @param  ASC: Additional Sense Key
+* @retval none
+
+*/
+void SCSI_SenseCode(uint8_t lun, uint8_t sKey, uint8_t ASC)
+{
+  SCSI_Sense[SCSI_Sense_Tail].Skey  = sKey;
+  SCSI_Sense[SCSI_Sense_Tail].w.ASC = ASC << 8;
+  SCSI_Sense_Tail++;
+  if (SCSI_Sense_Tail == SENSE_LIST_DEEPTH)
+  {
+    SCSI_Sense_Tail = 0;
+  }
+}
+/**
+* @brief  SCSI_StartStopUnit
+*         Process Start Stop Unit command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t SCSI_StartStopUnit(uint8_t lun, uint8_t *params)
+{
+  MSC_BOT_DataLen = 0;
+  return 0;
+}
+
+/**
+* @brief  SCSI_Read10
+*         Process Read10 command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+static int8_t SCSI_Read10(uint8_t lun , uint8_t *params)
+{
+  if(MSC_BOT_State == BOT_IDLE)  /* Idle */
+  {
+    
+    /* case 10 : Ho <> Di */
+    
+    if ((MSC_BOT_cbw.bmFlags & 0x80) != 0x80)
+    {
+      SCSI_SenseCode(MSC_BOT_cbw.bLUN, 
+                     ILLEGAL_REQUEST, 
+                     INVALID_CDB);
+      return -1;
+    }    
+    
+    if(USBD_STORAGE_fops->IsReady(lun) !=0 )
+    {
+      SCSI_SenseCode(lun,
+                     NOT_READY, 
+                     MEDIUM_NOT_PRESENT);
+      return -1;
+    } 
+    
+    SCSI_blk_addr = (params[2] << 24) | \
+      (params[3] << 16) | \
+        (params[4] <<  8) | \
+          params[5];
+    
+    SCSI_blk_len =  (params[7] <<  8) | \
+      params[8];  
+    
+    
+    
+    if( SCSI_CheckAddressRange(lun, SCSI_blk_addr, SCSI_blk_len) < 0)
+    {
+      return -1; /* error */
+    }
+    
+    MSC_BOT_State = BOT_DATA_IN;
+    SCSI_blk_addr *= SCSI_blk_size;
+    SCSI_blk_len  *= SCSI_blk_size;
+    
+    /* cases 4,5 : Hi <> Dn */
+    if (MSC_BOT_cbw.dDataLength != SCSI_blk_len)
+    {
+      SCSI_SenseCode(MSC_BOT_cbw.bLUN, 
+                     ILLEGAL_REQUEST, 
+                     INVALID_CDB);
+      return -1;
+    }
+  }
+  MSC_BOT_DataLen = MSC_MEDIA_PACKET;  
+  
+  return SCSI_ProcessRead(lun);
+}
+
+/**
+* @brief  SCSI_Write10
+*         Process Write10 command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+
+static int8_t SCSI_Write10 (uint8_t lun , uint8_t *params)
+{
+  if (MSC_BOT_State == BOT_IDLE) /* Idle */
+  {
+    
+    /* case 8 : Hi <> Do */
+    
+    if ((MSC_BOT_cbw.bmFlags & 0x80) == 0x80)
+    {
+      SCSI_SenseCode(MSC_BOT_cbw.bLUN, 
+                     ILLEGAL_REQUEST, 
+                     INVALID_CDB);
+      return -1;
+    }
+    
+    /* Check whether Media is ready */
+    if(USBD_STORAGE_fops->IsReady(lun) !=0 )
+    {
+      SCSI_SenseCode(lun,
+                     NOT_READY, 
+                     MEDIUM_NOT_PRESENT);
+      return -1;
+    } 
+    
+    /* Check If media is write-protected */
+    if(USBD_STORAGE_fops->IsWriteProtected(lun) !=0 )
+    {
+      SCSI_SenseCode(lun,
+                     NOT_READY, 
+                     WRITE_PROTECTED);
+      return -1;
+    } 
+    
+    
+    SCSI_blk_addr = (params[2] << 24) | \
+      (params[3] << 16) | \
+        (params[4] <<  8) | \
+          params[5];
+    SCSI_blk_len = (params[7] <<  8) | \
+      params[8];  
+    
+    /* check if LBA address is in the right range */
+    if(SCSI_CheckAddressRange(lun, SCSI_blk_addr, SCSI_blk_len) < 0)
+    {
+      return -1; /* error */      
+    }
+    
+    SCSI_blk_addr *= SCSI_blk_size;
+    SCSI_blk_len  *= SCSI_blk_size;
+    
+    /* cases 3,11,13 : Hn,Ho <> D0 */
+    if (MSC_BOT_cbw.dDataLength != SCSI_blk_len)
+    {
+      SCSI_SenseCode(MSC_BOT_cbw.bLUN, 
+                     ILLEGAL_REQUEST, 
+                     INVALID_CDB);
+      return -1;
+    }
+    
+    /* Prepare EP to receive first data packet */
+    MSC_BOT_State = BOT_DATA_OUT;  
+    DCD_EP_PrepareRx (cdev,
+                      MSC_OUT_EP,
+                      MSC_BOT_Data, 
+                      MIN (SCSI_blk_len, MSC_MEDIA_PACKET));  
+  }
+  else /* Write Process ongoing */
+  {
+    return SCSI_ProcessWrite(lun);
+  }
+  return 0;
+}
+
+
+/**
+* @brief  SCSI_Verify10
+*         Process Verify10 command
+* @param  lun: Logical unit number
+* @param  params: Command parameters
+* @retval status
+*/
+
+static int8_t SCSI_Verify10(uint8_t lun , uint8_t *params){
+  if ((params[1]& 0x02) == 0x02) 
+  {
+    SCSI_SenseCode (lun, ILLEGAL_REQUEST, INVALID_FIELED_IN_COMMAND);
+    return -1; /* Error, Verify Mode Not supported*/
+  }
+  
+  if(SCSI_CheckAddressRange(lun, SCSI_blk_addr, SCSI_blk_len) < 0)
+  {
+    return -1; /* error */      
+  }
+  MSC_BOT_DataLen = 0;
+  return 0;
+}
+
+/**
+* @brief  SCSI_CheckAddressRange
+*         Check address range
+* @param  lun: Logical unit number
+* @param  blk_offset: first block address
+* @param  blk_nbr: number of block to be processed
+* @retval status
+*/
+static int8_t SCSI_CheckAddressRange (uint8_t lun , uint32_t blk_offset , uint16_t blk_nbr)
+{
+  
+  if ((blk_offset + blk_nbr) > SCSI_blk_nbr )
+  {
+    SCSI_SenseCode(lun, ILLEGAL_REQUEST, ADDRESS_OUT_OF_RANGE);
+    return -1;
+  }
+  return 0;
+}
+
+/**
+* @brief  SCSI_ProcessRead
+*         Handle Read Process
+* @param  lun: Logical unit number
+* @retval status
+*/
+static int8_t SCSI_ProcessRead (uint8_t lun)
+{
+  uint32_t len;
+  
+  len = MIN(SCSI_blk_len , MSC_MEDIA_PACKET); 
+  
+  if( USBD_STORAGE_fops->Read(lun ,
+                              MSC_BOT_Data, 
+                              SCSI_blk_addr / SCSI_blk_size, 
+                              len / SCSI_blk_size) < 0)
+  {
+    
+    SCSI_SenseCode(lun, HARDWARE_ERROR, UNRECOVERED_READ_ERROR);
+    return -1; 
+  }
+  
+  
+  DCD_EP_Tx (cdev, 
+             MSC_IN_EP,
+             MSC_BOT_Data,
+             len);
+  
+  
+  SCSI_blk_addr   += len; 
+  SCSI_blk_len    -= len;  
+  
+  /* case 6 : Hi = Di */
+  MSC_BOT_csw.dDataResidue -= len;
+  
+  if (SCSI_blk_len == 0)
+  {
+    MSC_BOT_State = BOT_LAST_DATA_IN;
+  }
+  return 0;
+}
+
+/**
+* @brief  SCSI_ProcessWrite
+*         Handle Write Process
+* @param  lun: Logical unit number
+* @retval status
+*/
+
+static int8_t SCSI_ProcessWrite (uint8_t lun)
+{
+  uint32_t len;
+  
+  len = MIN(SCSI_blk_len , MSC_MEDIA_PACKET); 
+  
+  if(USBD_STORAGE_fops->Write(lun ,
+                              MSC_BOT_Data, 
+                              SCSI_blk_addr / SCSI_blk_size, 
+                              len / SCSI_blk_size) < 0)
+  {
+    SCSI_SenseCode(lun, HARDWARE_ERROR, WRITE_FAULT);     
+    return -1; 
+  }
+  
+  
+  SCSI_blk_addr  += len; 
+  SCSI_blk_len   -= len; 
+  
+  /* case 12 : Ho = Do */
+  MSC_BOT_csw.dDataResidue -= len;
+  
+  if (SCSI_blk_len == 0)
+  {
+    MSC_BOT_SendCSW (cdev, CSW_CMD_PASSED);
+  }
+  else
+  {
+    /* Prapare EP to Receive next packet */
+    DCD_EP_PrepareRx (cdev,
+                      MSC_OUT_EP,
+                      MSC_BOT_Data, 
+                      MIN (SCSI_blk_len, MSC_MEDIA_PACKET)); 
+  }
+  
+  return 0;
+}
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Class/msc/src/usbd_storage_template.c
@@ -1,0 +1,185 @@
+/**
+  ******************************************************************************
+  * @file    usbd_storage_template.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Memory management layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_msc_mem.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Extern function prototypes ------------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+#define STORAGE_LUN_NBR                  1                    
+
+int8_t STORAGE_Init (uint8_t lun);
+
+int8_t STORAGE_GetCapacity (uint8_t lun, 
+                           uint32_t *block_num, 
+                           uint16_t *block_size);
+
+int8_t  STORAGE_IsReady (uint8_t lun);
+
+int8_t  STORAGE_IsWriteProtected (uint8_t lun);
+
+int8_t STORAGE_Read (uint8_t lun, 
+                        uint8_t *buf, 
+                        uint32_t blk_addr,
+                        uint16_t blk_len);
+
+int8_t STORAGE_Write (uint8_t lun, 
+                        uint8_t *buf, 
+                        uint32_t blk_addr,
+                        uint16_t blk_len);
+
+int8_t STORAGE_GetMaxLun (void);
+
+/* USB Mass storage Standard Inquiry Data */
+const int8_t  STORAGE_Inquirydata[] = {//36
+  
+  /* LUN 0 */
+  0x00,		
+  0x80,		
+  0x02,		
+  0x02,
+  (USBD_STD_INQUIRY_LENGTH - 5),
+  0x00,
+  0x00,	
+  0x00,
+  'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */
+  'P', 'r', 'o', 'd', 'u', 't', ' ', ' ', /* Product      : 16 Bytes */
+  ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
+  '0', '.', '0' ,'1',                     /* Version      : 4 Bytes */
+}; 
+
+USBD_STORAGE_cb_TypeDef USBD_MICRO_SDIO_fops =
+{
+  STORAGE_Init,
+  STORAGE_GetCapacity,
+  STORAGE_IsReady,
+  STORAGE_IsWriteProtected,
+  STORAGE_Read,
+  STORAGE_Write,
+  STORAGE_GetMaxLun,
+  STORAGE_Inquirydata,
+  
+};
+
+USBD_STORAGE_cb_TypeDef  *USBD_STORAGE_fops = &USBD_MICRO_SDIO_fops;
+/*******************************************************************************
+* Function Name  : Read_Memory
+* Description    : Handle the Read operation from the microSD card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+int8_t STORAGE_Init (uint8_t lun)
+{
+  return (0);
+}
+
+/*******************************************************************************
+* Function Name  : Read_Memory
+* Description    : Handle the Read operation from the STORAGE card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+int8_t STORAGE_GetCapacity (uint8_t lun, uint32_t *block_num, uint16_t *block_size)
+{
+  return (0);
+}
+
+/*******************************************************************************
+* Function Name  : Read_Memory
+* Description    : Handle the Read operation from the STORAGE card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+int8_t  STORAGE_IsReady (uint8_t lun)
+{
+  return (0);
+}
+
+/*******************************************************************************
+* Function Name  : Read_Memory
+* Description    : Handle the Read operation from the STORAGE card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+int8_t  STORAGE_IsWriteProtected (uint8_t lun)
+{
+  return  0;
+}
+
+/*******************************************************************************
+* Function Name  : Read_Memory
+* Description    : Handle the Read operation from the STORAGE card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+int8_t STORAGE_Read (uint8_t lun, 
+                 uint8_t *buf, 
+                 uint32_t blk_addr,                       
+                 uint16_t blk_len)
+{
+  return 0;
+}
+/*******************************************************************************
+* Function Name  : Write_Memory
+* Description    : Handle the Write operation to the STORAGE card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+int8_t STORAGE_Write (uint8_t lun, 
+                  uint8_t *buf, 
+                  uint32_t blk_addr,
+                  uint16_t blk_len)
+{
+  return (0);
+}
+/*******************************************************************************
+* Function Name  : Write_Memory
+* Description    : Handle the Write operation to the STORAGE card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+int8_t STORAGE_GetMaxLun (void)
+{
+  return (STORAGE_LUN_NBR - 1);
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/inc/usbd_conf_template.h
@@ -1,0 +1,82 @@
+/**
+  ******************************************************************************
+  * @file    usbd_conf_template.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   usb device configuration template file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_CONF__H__
+#define __USBD_CONF__H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+
+/** @defgroup USB_CONF_Exported_Defines
+  * @{
+  */ 
+#define USE_USB_OTG_HS  
+
+#define USBD_CFG_MAX_NUM           1
+#define USB_MAX_STR_DESC_SIZ       64 
+#define USBD_EP0_MAX_PACKET_SIZE   64
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_CONF_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_CONF_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CONF_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CONF_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+#endif //__USBD_CONF__H__
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/inc/usbd_core.h
@@ -1,0 +1,120 @@
+/**
+  ******************************************************************************
+  * @file    usbd_core.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbd_core.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_CORE_H
+#define __USBD_CORE_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_dcd.h"
+#include "usbd_def.h"
+#include "usbd_conf.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_CORE
+  * @brief This file is the Header file for usbd_core.c file
+  * @{
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_Defines
+  * @{
+  */ 
+
+typedef enum {
+  USBD_OK   = 0,
+  USBD_BUSY,
+  USBD_FAIL,
+}USBD_Status;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_TypesDefinitions
+  * @{
+  */
+ 
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_CORE_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_FunctionsPrototype
+  * @{
+  */ 
+void USBD_Init(USB_OTG_CORE_HANDLE *pdev,
+               USB_OTG_CORE_ID_TypeDef coreID, 
+               USBD_DEVICE *pDevice,                  
+               USBD_Class_cb_TypeDef *class_cb, 
+               USBD_Usr_cb_TypeDef *usr_cb);
+
+USBD_Status USBD_DeInit(USB_OTG_CORE_HANDLE *pdev);
+
+USBD_Status USBD_ClrCfg(USB_OTG_CORE_HANDLE  *pdev, uint8_t cfgidx);
+
+USBD_Status USBD_SetCfg(USB_OTG_CORE_HANDLE  *pdev, uint8_t cfgidx);
+
+/**
+  * @}
+  */ 
+
+#endif /* __USBD_CORE_H */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/inc/usbd_def.h
@@ -1,0 +1,156 @@
+/**
+  ******************************************************************************
+  * @file    usbd_def.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   general defines for the usb device library 
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef __USBD_DEF_H
+#define __USBD_DEF_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_conf.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USB_DEF
+  * @brief general defines for the usb device library file
+  * @{
+  */ 
+
+/** @defgroup USB_DEF_Exported_Defines
+  * @{
+  */ 
+
+#ifndef NULL
+#define NULL    0
+#endif
+
+#define  USB_LEN_DEV_QUALIFIER_DESC                     0x0A
+#define  USB_LEN_DEV_DESC                               0x12
+#define  USB_LEN_CFG_DESC                               0x09
+#define  USB_LEN_IF_DESC                                0x09
+#define  USB_LEN_EP_DESC                                0x07
+#define  USB_LEN_OTG_DESC                               0x03
+
+#define  USBD_IDX_LANGID_STR                            0x00 
+#define  USBD_IDX_MFC_STR                               0x01 
+#define  USBD_IDX_PRODUCT_STR                           0x02
+#define  USBD_IDX_SERIAL_STR                            0x03 
+#define  USBD_IDX_CONFIG_STR                            0x04 
+#define  USBD_IDX_INTERFACE_STR                         0x05 
+
+#define  USB_REQ_TYPE_STANDARD                          0x00
+#define  USB_REQ_TYPE_CLASS                             0x20
+#define  USB_REQ_TYPE_VENDOR                            0x40
+#define  USB_REQ_TYPE_MASK                              0x60
+
+#define  USB_REQ_RECIPIENT_DEVICE                       0x00
+#define  USB_REQ_RECIPIENT_INTERFACE                    0x01
+#define  USB_REQ_RECIPIENT_ENDPOINT                     0x02
+#define  USB_REQ_RECIPIENT_MASK                         0x03
+
+#define  USB_REQ_GET_STATUS                             0x00
+#define  USB_REQ_CLEAR_FEATURE                          0x01
+#define  USB_REQ_SET_FEATURE                            0x03
+#define  USB_REQ_SET_ADDRESS                            0x05
+#define  USB_REQ_GET_DESCRIPTOR                         0x06
+#define  USB_REQ_SET_DESCRIPTOR                         0x07
+#define  USB_REQ_GET_CONFIGURATION                      0x08
+#define  USB_REQ_SET_CONFIGURATION                      0x09
+#define  USB_REQ_GET_INTERFACE                          0x0A
+#define  USB_REQ_SET_INTERFACE                          0x0B
+#define  USB_REQ_SYNCH_FRAME                            0x0C
+
+#define  USB_DESC_TYPE_DEVICE                              1
+#define  USB_DESC_TYPE_CONFIGURATION                       2
+#define  USB_DESC_TYPE_STRING                              3
+#define  USB_DESC_TYPE_INTERFACE                           4
+#define  USB_DESC_TYPE_ENDPOINT                            5
+#define  USB_DESC_TYPE_DEVICE_QUALIFIER                    6
+#define  USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION           7
+
+
+#define USB_CONFIG_REMOTE_WAKEUP                           2
+#define USB_CONFIG_SELF_POWERED                            1
+
+#define USB_FEATURE_EP_HALT                                0
+#define USB_FEATURE_REMOTE_WAKEUP                          1
+#define USB_FEATURE_TEST_MODE                              2
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_DEF_Exported_TypesDefinitions
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_DEF_Exported_Macros
+  * @{
+  */ 
+#define  SWAPBYTE(addr)        (((uint16_t)(*((uint8_t *)(addr)))) + \
+                               (((uint16_t)(*(((uint8_t *)(addr)) + 1))) << 8))
+
+#define LOBYTE(x)  ((uint8_t)(x & 0x00FF))
+#define HIBYTE(x)  ((uint8_t)((x & 0xFF00) >>8))
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_DEF_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_DEF_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+#endif /* __USBD_DEF_H */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/inc/usbd_ioreq.h
@@ -1,0 +1,121 @@
+/**
+  ******************************************************************************
+  * @file    usbd_ioreq.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header file for the usbd_ioreq.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef __USBD_IOREQ_H_
+#define __USBD_IOREQ_H_
+
+/* Includes ------------------------------------------------------------------*/
+#include  "usbd_def.h"
+#include  "usbd_core.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_IOREQ
+  * @brief header file for the usbd_ioreq.c file
+  * @{
+  */ 
+
+/** @defgroup USBD_IOREQ_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Exported_Types
+  * @{
+  */
+
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_IOREQ_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_IOREQ_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_IOREQ_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+USBD_Status  USBD_CtlSendData (USB_OTG_CORE_HANDLE  *pdev, 
+                               uint8_t *buf,
+                               uint16_t len);
+
+USBD_Status  USBD_CtlContinueSendData (USB_OTG_CORE_HANDLE  *pdev, 
+                               uint8_t *pbuf,
+                               uint16_t len);
+
+USBD_Status USBD_CtlPrepareRx (USB_OTG_CORE_HANDLE  *pdev, 
+                               uint8_t *pbuf,                                 
+                               uint16_t len);
+
+USBD_Status  USBD_CtlContinueRx (USB_OTG_CORE_HANDLE  *pdev, 
+                              uint8_t *pbuf,                                          
+                              uint16_t len);
+
+USBD_Status  USBD_CtlSendStatus (USB_OTG_CORE_HANDLE  *pdev);
+
+USBD_Status  USBD_CtlReceiveStatus (USB_OTG_CORE_HANDLE  *pdev);
+
+uint16_t  USBD_GetRxCount (USB_OTG_CORE_HANDLE  *pdev , 
+                           uint8_t epnum);
+
+/**
+  * @}
+  */ 
+
+#endif /* __USBD_IOREQ_H_ */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/inc/usbd_req.h
@@ -1,0 +1,108 @@
+/**
+  ******************************************************************************
+  * @file    usbd_req.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   header file for the usbd_req.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef __USB_REQUEST_H_
+#define __USB_REQUEST_H_
+
+/* Includes ------------------------------------------------------------------*/
+#include  "usbd_def.h"
+#include  "usbd_core.h"
+#include  "usbd_conf.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_REQ
+  * @brief header file for the usbd_ioreq.c file
+  * @{
+  */ 
+
+/** @defgroup USBD_REQ_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Exported_Types
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_REQ_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_REQ_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_REQ_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+USBD_Status  USBD_StdDevReq (USB_OTG_CORE_HANDLE  *pdev, USB_SETUP_REQ  *req);
+USBD_Status  USBD_StdItfReq (USB_OTG_CORE_HANDLE  *pdev, USB_SETUP_REQ  *req);
+USBD_Status  USBD_StdEPReq (USB_OTG_CORE_HANDLE  *pdev, USB_SETUP_REQ  *req);
+void USBD_ParseSetupRequest( USB_OTG_CORE_HANDLE  *pdev,
+                                    USB_SETUP_REQ *req);
+
+void USBD_CtlError( USB_OTG_CORE_HANDLE  *pdev,
+                            USB_SETUP_REQ *req);
+
+void USBD_GetString(uint8_t *desc, uint8_t *unicode, uint16_t *len);
+/**
+  * @}
+  */ 
+
+#endif /* __USB_REQUEST_H_ */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/inc/usbd_usr.h
@@ -1,0 +1,141 @@
+/**
+  ******************************************************************************
+  * @file    usbd_usr.h
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbd_usr.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_USR_H__
+#define __USBD_USR_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_core.h"
+
+
+/** @addtogroup USBD_USER
+  * @{
+  */
+
+/** @addtogroup USBD_MSC_DEMO_USER_CALLBACKS
+  * @{
+  */
+
+/** @defgroup USBD_USR
+  * @brief This file is the Header file for usbd_usr.c
+  * @{
+  */ 
+
+
+/** @defgroup USBD_USR_Exported_Types
+  * @{
+  */ 
+
+extern  USBD_Usr_cb_TypeDef USR_cb;
+extern  USBD_Usr_cb_TypeDef USR_FS_cb;
+extern  USBD_Usr_cb_TypeDef USR_HS_cb;
+
+
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_USR_Exported_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_USR_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_USR_Exported_Variables
+  * @{
+  */ 
+
+void     USBD_USR_Init(void);
+void     USBD_USR_DeviceReset (uint8_t speed);
+void     USBD_USR_DeviceConfigured (void);
+void     USBD_USR_DeviceSuspended(void);
+void     USBD_USR_DeviceResumed(void);
+
+void     USBD_USR_DeviceConnected(void);
+void     USBD_USR_DeviceDisconnected(void); 
+
+void     USBD_USR_FS_Init(void);
+void     USBD_USR_FS_DeviceReset (uint8_t speed);
+void     USBD_USR_FS_DeviceConfigured (void);
+void     USBD_USR_FS_DeviceSuspended(void);
+void     USBD_USR_FS_DeviceResumed(void);
+
+void     USBD_USR_FS_DeviceConnected(void);
+void     USBD_USR_FS_DeviceDisconnected(void);  
+
+void     USBD_USR_HS_Init(void);
+void     USBD_USR_HS_DeviceReset (uint8_t speed);
+void     USBD_USR_HS_DeviceConfigured (void);
+void     USBD_USR_HS_DeviceSuspended(void);
+void     USBD_USR_HS_DeviceResumed(void);
+
+void     USBD_USR_HS_DeviceConnected(void);
+void     USBD_USR_HS_DeviceDisconnected(void);  
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_USR_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+#endif /*__USBD_USR_H__*/
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/src/usbd_core.c
@@ -1,0 +1,506 @@
+/**
+  ******************************************************************************
+  * @file    usbd_core.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides all the USBD core functions.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_core.h"
+#include "usbd_req.h"
+#include "usbd_ioreq.h"
+#include "usb_dcd_int.h"
+#include "usb_bsp.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+* @{
+*/
+
+
+/** @defgroup USBD_CORE 
+* @brief usbd core module
+* @{
+*/ 
+
+/** @defgroup USBD_CORE_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBD_CORE_Private_Defines
+* @{
+*/ 
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBD_CORE_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+
+
+/** @defgroup USBD_CORE_Private_FunctionPrototypes
+* @{
+*/ 
+static uint8_t USBD_SetupStage(USB_OTG_CORE_HANDLE *pdev);
+static uint8_t USBD_DataOutStage(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum);
+static uint8_t USBD_DataInStage(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum);
+static uint8_t USBD_SOF(USB_OTG_CORE_HANDLE  *pdev);
+static uint8_t USBD_Reset(USB_OTG_CORE_HANDLE  *pdev);
+static uint8_t USBD_Suspend(USB_OTG_CORE_HANDLE  *pdev);
+static uint8_t USBD_Resume(USB_OTG_CORE_HANDLE  *pdev);
+#ifdef VBUS_SENSING_ENABLED
+static uint8_t USBD_DevConnected(USB_OTG_CORE_HANDLE  *pdev);
+static uint8_t USBD_DevDisconnected(USB_OTG_CORE_HANDLE  *pdev);
+#endif
+static uint8_t USBD_IsoINIncomplete(USB_OTG_CORE_HANDLE  *pdev);
+static uint8_t USBD_IsoOUTIncomplete(USB_OTG_CORE_HANDLE  *pdev);
+static uint8_t  USBD_RunTestMode (USB_OTG_CORE_HANDLE  *pdev) ;
+/**
+* @}
+*/ 
+
+/** @defgroup USBD_CORE_Private_Variables
+* @{
+*/ 
+
+__IO USB_OTG_DCTL_TypeDef SET_TEST_MODE;
+
+USBD_DCD_INT_cb_TypeDef USBD_DCD_INT_cb = 
+{
+  USBD_DataOutStage,
+  USBD_DataInStage,
+  USBD_SetupStage,
+  USBD_SOF,
+  USBD_Reset,
+  USBD_Suspend,
+  USBD_Resume,
+  USBD_IsoINIncomplete,
+  USBD_IsoOUTIncomplete,
+#ifdef VBUS_SENSING_ENABLED
+USBD_DevConnected, 
+USBD_DevDisconnected,    
+#endif  
+};
+
+USBD_DCD_INT_cb_TypeDef  *USBD_DCD_INT_fops = &USBD_DCD_INT_cb;
+/**
+* @}
+*/ 
+
+/** @defgroup USBD_CORE_Private_Functions
+* @{
+*/ 
+
+/**
+* @brief  USBD_Init
+*         Initailizes the device stack and load the class driver
+* @param  pdev: device instance
+* @param  core_address: USB OTG core ID
+* @param  class_cb: Class callback structure address
+* @param  usr_cb: User callback structure address
+* @retval None
+*/
+void USBD_Init(USB_OTG_CORE_HANDLE *pdev,
+               USB_OTG_CORE_ID_TypeDef coreID,
+               USBD_DEVICE *pDevice,                  
+               USBD_Class_cb_TypeDef *class_cb, 
+               USBD_Usr_cb_TypeDef *usr_cb)
+{
+  /* Hardware Init */
+  USB_OTG_BSP_Init(pdev);  
+  
+  USBD_DeInit(pdev);
+  
+  /*Register class and user callbacks */
+  pdev->dev.class_cb = class_cb;
+  pdev->dev.usr_cb = usr_cb;  
+  pdev->dev.usr_device = pDevice;    
+  
+  /* set USB OTG core params */
+  DCD_Init(pdev , coreID);
+  
+  /* Upon Init call usr callback */
+  pdev->dev.usr_cb->Init();
+  
+  /* Enable Interrupts */
+  USB_OTG_BSP_EnableInterrupt(pdev);
+}
+
+/**
+* @brief  USBD_DeInit 
+*         Re-Initialize th device library
+* @param  pdev: device instance
+* @retval status: status
+*/
+USBD_Status USBD_DeInit(USB_OTG_CORE_HANDLE *pdev)
+{
+  /* Software Init */
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_SetupStage 
+*         Handle the setup stage
+* @param  pdev: device instance
+* @retval status
+*/
+static uint8_t USBD_SetupStage(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_SETUP_REQ req;
+  
+  USBD_ParseSetupRequest(pdev , &req);
+  
+  switch (req.bmRequest & 0x1F) 
+  {
+  case USB_REQ_RECIPIENT_DEVICE:   
+    USBD_StdDevReq (pdev, &req);
+    break;
+    
+  case USB_REQ_RECIPIENT_INTERFACE:     
+    USBD_StdItfReq(pdev, &req);
+    break;
+    
+  case USB_REQ_RECIPIENT_ENDPOINT:        
+    USBD_StdEPReq(pdev, &req);   
+    break;
+    
+  default:           
+    DCD_EP_Stall(pdev , req.bmRequest & 0x80);
+    break;
+  }  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_DataOutStage 
+*         Handle data out stage
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval status
+*/
+static uint8_t USBD_DataOutStage(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
+{
+  USB_OTG_EP *ep;
+  
+  if(epnum == 0) 
+  {
+    ep = &pdev->dev.out_ep[0];
+    if ( pdev->dev.device_state == USB_OTG_EP0_DATA_OUT)
+    {
+      if(ep->rem_data_len > ep->maxpacket)
+      {
+        ep->rem_data_len -=  ep->maxpacket;
+        
+        if(pdev->cfg.dma_enable == 1)
+        {
+          /* in slave mode this, is handled by the RxSTSQLvl ISR */
+          ep->xfer_buff += ep->maxpacket; 
+        }        
+        USBD_CtlContinueRx (pdev, 
+                            ep->xfer_buff,
+                            MIN(ep->rem_data_len ,ep->maxpacket));
+      }
+      else
+      {
+        if((pdev->dev.class_cb->EP0_RxReady != NULL)&&
+           (pdev->dev.device_status == USB_OTG_CONFIGURED))
+        {
+          pdev->dev.class_cb->EP0_RxReady(pdev); 
+        }
+        USBD_CtlSendStatus(pdev);
+      }
+    }
+  }
+  else if((pdev->dev.class_cb->DataOut != NULL)&&
+          (pdev->dev.device_status == USB_OTG_CONFIGURED))
+  {
+    pdev->dev.class_cb->DataOut(pdev, epnum); 
+  }  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_DataInStage 
+*         Handle data in stage
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval status
+*/
+static uint8_t USBD_DataInStage(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
+{
+  USB_OTG_EP *ep;
+  
+  if(epnum == 0) 
+  {
+    ep = &pdev->dev.in_ep[0];
+    if ( pdev->dev.device_state == USB_OTG_EP0_DATA_IN)
+    {
+      if(ep->rem_data_len > ep->maxpacket)
+      {
+        ep->rem_data_len -=  ep->maxpacket;
+        if(pdev->cfg.dma_enable == 1)
+        {
+          /* in slave mode this, is handled by the TxFifoEmpty ISR */
+          ep->xfer_buff += ep->maxpacket;
+        }
+        USBD_CtlContinueSendData (pdev, 
+                                  ep->xfer_buff, 
+                                  ep->rem_data_len);
+      }
+      else
+      { /* last packet is MPS multiple, so send ZLP packet */
+        if((ep->total_data_len % ep->maxpacket == 0) &&
+           (ep->total_data_len >= ep->maxpacket) &&
+             (ep->total_data_len < ep->ctl_data_len ))
+        {
+          
+          USBD_CtlContinueSendData(pdev , NULL, 0);
+          ep->ctl_data_len = 0;
+        }
+        else
+        {
+          if((pdev->dev.class_cb->EP0_TxSent != NULL)&&
+             (pdev->dev.device_status == USB_OTG_CONFIGURED))
+          {
+            pdev->dev.class_cb->EP0_TxSent(pdev); 
+          }          
+          USBD_CtlReceiveStatus(pdev);
+        }
+      }
+    }
+    if (pdev->dev.test_mode == 1)
+    {
+      USBD_RunTestMode(pdev); 
+      pdev->dev.test_mode = 0;
+    }
+  }
+  else if((pdev->dev.class_cb->DataIn != NULL)&& 
+          (pdev->dev.device_status == USB_OTG_CONFIGURED))
+  {
+    pdev->dev.class_cb->DataIn(pdev, epnum); 
+  }  
+  return USBD_OK;
+}
+
+
+
+
+/**
+* @brief  USBD_RunTestMode 
+*         Launch test mode process
+* @param  pdev: device instance
+* @retval status
+*/
+static uint8_t  USBD_RunTestMode (USB_OTG_CORE_HANDLE  *pdev) 
+{
+  USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DCTL, SET_TEST_MODE.d32);
+  return USBD_OK;  
+}
+
+/**
+* @brief  USBD_Reset 
+*         Handle Reset event
+* @param  pdev: device instance
+* @retval status
+*/
+
+static uint8_t USBD_Reset(USB_OTG_CORE_HANDLE  *pdev)
+{
+  /* Open EP0 OUT */
+  DCD_EP_Open(pdev,
+              0x00,
+              USB_OTG_MAX_EP0_SIZE,
+              EP_TYPE_CTRL);
+  
+  /* Open EP0 IN */
+  DCD_EP_Open(pdev,
+              0x80,
+              USB_OTG_MAX_EP0_SIZE,
+              EP_TYPE_CTRL);
+  
+  /* Upon Reset call usr call back */
+  pdev->dev.device_status = USB_OTG_DEFAULT;
+  pdev->dev.usr_cb->DeviceReset(pdev->cfg.speed);
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_Resume 
+*         Handle Resume event
+* @param  pdev: device instance
+* @retval status
+*/
+
+static uint8_t USBD_Resume(USB_OTG_CORE_HANDLE  *pdev)
+{
+  /* Upon Resume call usr call back */
+  pdev->dev.usr_cb->DeviceResumed(); 
+  pdev->dev.device_status = pdev->dev.device_old_status;  
+  pdev->dev.device_status = USB_OTG_CONFIGURED;  
+  return USBD_OK;
+}
+
+
+/**
+* @brief  USBD_Suspend 
+*         Handle Suspend event
+* @param  pdev: device instance
+* @retval status
+*/
+
+static uint8_t USBD_Suspend(USB_OTG_CORE_HANDLE  *pdev)
+{
+  pdev->dev.device_old_status = pdev->dev.device_status;
+  pdev->dev.device_status  = USB_OTG_SUSPENDED;
+  /* Upon Resume call usr call back */
+  pdev->dev.usr_cb->DeviceSuspended(); 
+  return USBD_OK;
+}
+
+
+/**
+* @brief  USBD_SOF 
+*         Handle SOF event
+* @param  pdev: device instance
+* @retval status
+*/
+
+static uint8_t USBD_SOF(USB_OTG_CORE_HANDLE  *pdev)
+{
+  if(pdev->dev.class_cb->SOF)
+  {
+    pdev->dev.class_cb->SOF(pdev); 
+  }
+  return USBD_OK;
+}
+/**
+* @brief  USBD_SetCfg 
+*        Configure device and start the interface
+* @param  pdev: device instance
+* @param  cfgidx: configuration index
+* @retval status
+*/
+
+USBD_Status USBD_SetCfg(USB_OTG_CORE_HANDLE  *pdev, uint8_t cfgidx)
+{
+  pdev->dev.class_cb->Init(pdev, cfgidx); 
+  
+  /* Upon set config call usr call back */
+  pdev->dev.usr_cb->DeviceConfigured();
+  return USBD_OK; 
+}
+
+/**
+* @brief  USBD_ClrCfg 
+*         Clear current configuration
+* @param  pdev: device instance
+* @param  cfgidx: configuration index
+* @retval status: USBD_Status
+*/
+USBD_Status USBD_ClrCfg(USB_OTG_CORE_HANDLE  *pdev, uint8_t cfgidx)
+{
+  pdev->dev.class_cb->DeInit(pdev, cfgidx);   
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_IsoINIncomplete 
+*         Handle iso in incomplete event
+* @param  pdev: device instance
+* @retval status
+*/
+static uint8_t USBD_IsoINIncomplete(USB_OTG_CORE_HANDLE  *pdev)
+{
+  pdev->dev.class_cb->IsoINIncomplete(pdev);   
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_IsoOUTIncomplete 
+*         Handle iso out incomplete event
+* @param  pdev: device instance
+* @retval status
+*/
+static uint8_t USBD_IsoOUTIncomplete(USB_OTG_CORE_HANDLE  *pdev)
+{
+  pdev->dev.class_cb->IsoOUTIncomplete(pdev);   
+  return USBD_OK;
+}
+
+#ifdef VBUS_SENSING_ENABLED
+/**
+* @brief  USBD_DevConnected 
+*         Handle device connection event
+* @param  pdev: device instance
+* @retval status
+*/
+static uint8_t USBD_DevConnected(USB_OTG_CORE_HANDLE  *pdev)
+{
+  pdev->dev.usr_cb->DeviceConnected();
+  pdev->dev.connection_status = 1;  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_DevDisconnected 
+*         Handle device disconnection event
+* @param  pdev: device instance
+* @retval status
+*/
+static uint8_t USBD_DevDisconnected(USB_OTG_CORE_HANDLE  *pdev)
+{
+  pdev->dev.usr_cb->DeviceDisconnected();
+  pdev->dev.class_cb->DeInit(pdev, 0);
+  pdev->dev.connection_status = 0;    
+  return USBD_OK;
+}
+#endif
+/**
+* @}
+*/ 
+
+
+/**
+* @}
+*/ 
+
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/src/usbd_ioreq.c
@@ -1,0 +1,244 @@
+/**
+  ******************************************************************************
+  * @file    usbd_ioreq.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012
+  * @brief   This file provides the IO requests APIs for control endpoints.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_ioreq.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup USBD_IOREQ 
+  * @brief control I/O requests module
+  * @{
+  */ 
+
+/** @defgroup USBD_IOREQ_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_FunctionPrototypes
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Functions
+  * @{
+  */ 
+
+/**
+* @brief  USBD_CtlSendData
+*         send data on the ctl pipe
+* @param  pdev: device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be sent
+* @retval status
+*/
+USBD_Status  USBD_CtlSendData (USB_OTG_CORE_HANDLE  *pdev, 
+                               uint8_t *pbuf,
+                               uint16_t len)
+{
+  USBD_Status ret = USBD_OK;
+  
+  pdev->dev.in_ep[0].total_data_len = len;
+  pdev->dev.in_ep[0].rem_data_len   = len;
+  pdev->dev.device_state = USB_OTG_EP0_DATA_IN;
+
+  DCD_EP_Tx (pdev, 0, pbuf, len);
+ 
+  return ret;
+}
+
+/**
+* @brief  USBD_CtlContinueSendData
+*         continue sending data on the ctl pipe
+* @param  pdev: device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be sent
+* @retval status
+*/
+USBD_Status  USBD_CtlContinueSendData (USB_OTG_CORE_HANDLE  *pdev, 
+                                       uint8_t *pbuf,
+                                       uint16_t len)
+{
+  USBD_Status ret = USBD_OK;
+  
+  DCD_EP_Tx (pdev, 0, pbuf, len);
+  
+  
+  return ret;
+}
+
+/**
+* @brief  USBD_CtlPrepareRx
+*         receive data on the ctl pipe
+* @param  pdev: USB OTG device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be received
+* @retval status
+*/
+USBD_Status  USBD_CtlPrepareRx (USB_OTG_CORE_HANDLE  *pdev,
+                                  uint8_t *pbuf,                                  
+                                  uint16_t len)
+{
+  USBD_Status ret = USBD_OK;
+  
+  pdev->dev.out_ep[0].total_data_len = len;
+  pdev->dev.out_ep[0].rem_data_len   = len;
+  pdev->dev.device_state = USB_OTG_EP0_DATA_OUT;
+  
+  DCD_EP_PrepareRx (pdev,
+                    0,
+                    pbuf,
+                    len);
+  
+
+  return ret;
+}
+
+/**
+* @brief  USBD_CtlContinueRx
+*         continue receive data on the ctl pipe
+* @param  pdev: USB OTG device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be received
+* @retval status
+*/
+USBD_Status  USBD_CtlContinueRx (USB_OTG_CORE_HANDLE  *pdev, 
+                                          uint8_t *pbuf,                                          
+                                          uint16_t len)
+{
+  USBD_Status ret = USBD_OK;
+  
+  DCD_EP_PrepareRx (pdev,
+                    0,                     
+                    pbuf,                         
+                    len);
+  return ret;
+}
+/**
+* @brief  USBD_CtlSendStatus
+*         send zero lzngth packet on the ctl pipe
+* @param  pdev: USB OTG device instance
+* @retval status
+*/
+USBD_Status  USBD_CtlSendStatus (USB_OTG_CORE_HANDLE  *pdev)
+{
+  USBD_Status ret = USBD_OK;
+  pdev->dev.device_state = USB_OTG_EP0_STATUS_IN;
+  DCD_EP_Tx (pdev,
+             0,
+             NULL, 
+             0); 
+  
+  USB_OTG_EP0_OutStart(pdev);  
+  
+  return ret;
+}
+
+/**
+* @brief  USBD_CtlReceiveStatus
+*         receive zero lzngth packet on the ctl pipe
+* @param  pdev: USB OTG device instance
+* @retval status
+*/
+USBD_Status  USBD_CtlReceiveStatus (USB_OTG_CORE_HANDLE  *pdev)
+{
+  USBD_Status ret = USBD_OK;
+  pdev->dev.device_state = USB_OTG_EP0_STATUS_OUT;  
+  DCD_EP_PrepareRx ( pdev,
+                    0,
+                    NULL,
+                    0);  
+
+  USB_OTG_EP0_OutStart(pdev);
+  
+  return ret;
+}
+
+
+/**
+* @brief  USBD_GetRxCount
+*         returns the received data length
+* @param  pdev: USB OTG device instance
+*         epnum: endpoint index
+* @retval Rx Data blength
+*/
+uint16_t  USBD_GetRxCount (USB_OTG_CORE_HANDLE  *pdev , uint8_t epnum)
+{
+  return pdev->dev.out_ep[epnum].xfer_count;
+}
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_dev/Core/src/usbd_req.c
@@ -1,0 +1,868 @@
+/**
+  ******************************************************************************
+  * @file    usbd_req.c
+  * @author  MCD Application Team
+  * @version V1.1.0
+  * @date    19-March-2012 
+  * @brief   This file provides the standard USB requests following chapter 9.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_req.h"
+#include "usbd_ioreq.h"
+#include "usbd_desc.h"
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup USBD_REQ 
+  * @brief USB standard requests module
+  * @{
+  */ 
+
+/** @defgroup USBD_REQ_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Variables
+  * @{
+  */ 
+extern __IO USB_OTG_DCTL_TypeDef SET_TEST_MODE;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */  
+__ALIGN_BEGIN uint32_t USBD_ep_status __ALIGN_END  = 0; 
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint32_t  USBD_default_cfg __ALIGN_END  = 0;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint32_t  USBD_cfg_status __ALIGN_END  = 0;  
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t USBD_StrDesc[USB_MAX_STR_DESC_SIZ] __ALIGN_END ;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_FunctionPrototypes
+  * @{
+  */ 
+static void USBD_GetDescriptor(USB_OTG_CORE_HANDLE  *pdev, 
+                               USB_SETUP_REQ *req);
+
+static void USBD_SetAddress(USB_OTG_CORE_HANDLE  *pdev, 
+                            USB_SETUP_REQ *req);
+
+static void USBD_SetConfig(USB_OTG_CORE_HANDLE  *pdev, 
+                           USB_SETUP_REQ *req);
+
+static void USBD_GetConfig(USB_OTG_CORE_HANDLE  *pdev, 
+                           USB_SETUP_REQ *req);
+
+static void USBD_GetStatus(USB_OTG_CORE_HANDLE  *pdev, 
+                           USB_SETUP_REQ *req);
+
+static void USBD_SetFeature(USB_OTG_CORE_HANDLE  *pdev, 
+                            USB_SETUP_REQ *req);
+
+static void USBD_ClrFeature(USB_OTG_CORE_HANDLE  *pdev, 
+                            USB_SETUP_REQ *req);
+
+static uint8_t USBD_GetLen(uint8_t *buf);
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Functions
+  * @{
+  */ 
+
+
+/**
+* @brief  USBD_StdDevReq
+*         Handle standard usb device requests
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+USBD_Status  USBD_StdDevReq (USB_OTG_CORE_HANDLE  *pdev, USB_SETUP_REQ  *req)
+{
+  USBD_Status ret = USBD_OK;  
+  
+  switch (req->bRequest) 
+  {
+  case USB_REQ_GET_DESCRIPTOR: 
+    
+    USBD_GetDescriptor (pdev, req) ;
+    break;
+    
+  case USB_REQ_SET_ADDRESS:                      
+    USBD_SetAddress(pdev, req);
+    break;
+    
+  case USB_REQ_SET_CONFIGURATION:                    
+    USBD_SetConfig (pdev , req);
+    break;
+    
+  case USB_REQ_GET_CONFIGURATION:                 
+    USBD_GetConfig (pdev , req);
+    break;
+    
+  case USB_REQ_GET_STATUS:                                  
+    USBD_GetStatus (pdev , req);
+    break;
+    
+    
+  case USB_REQ_SET_FEATURE:   
+    USBD_SetFeature (pdev , req);    
+    break;
+    
+  case USB_REQ_CLEAR_FEATURE:                                   
+    USBD_ClrFeature (pdev , req);
+    break;
+    
+  default:  
+    USBD_CtlError(pdev , req);
+    break;
+  }
+  
+  return ret;
+}
+
+/**
+* @brief  USBD_StdItfReq
+*         Handle standard usb interface requests
+* @param  pdev: USB OTG device instance
+* @param  req: usb request
+* @retval status
+*/
+USBD_Status  USBD_StdItfReq (USB_OTG_CORE_HANDLE  *pdev, USB_SETUP_REQ  *req)
+{
+  USBD_Status ret = USBD_OK; 
+  
+  switch (pdev->dev.device_status) 
+  {
+  case USB_OTG_CONFIGURED:
+    
+    if (LOBYTE(req->wIndex) <= USBD_ITF_MAX_NUM) 
+    {
+      pdev->dev.class_cb->Setup (pdev, req); 
+      
+      if((req->wLength == 0)&& (ret == USBD_OK))
+      {
+         USBD_CtlSendStatus(pdev);
+      }
+    } 
+    else 
+    {                                               
+       USBD_CtlError(pdev , req);
+    }
+    break;
+    
+  default:
+     USBD_CtlError(pdev , req);
+    break;
+  }
+  return ret;
+}
+
+/**
+* @brief  USBD_StdEPReq
+*         Handle standard usb endpoint requests
+* @param  pdev: USB OTG device instance
+* @param  req: usb request
+* @retval status
+*/
+USBD_Status  USBD_StdEPReq (USB_OTG_CORE_HANDLE  *pdev, USB_SETUP_REQ  *req)
+{
+  
+  uint8_t   ep_addr;
+  USBD_Status ret = USBD_OK; 
+  
+  ep_addr  = LOBYTE(req->wIndex);   
+  
+  switch (req->bRequest) 
+  {
+    
+  case USB_REQ_SET_FEATURE :
+    
+    switch (pdev->dev.device_status) 
+    {
+    case USB_OTG_ADDRESSED:          
+      if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+      {
+        DCD_EP_Stall(pdev , ep_addr);
+      }
+      break;	
+      
+    case USB_OTG_CONFIGURED:   
+      if (req->wValue == USB_FEATURE_EP_HALT)
+      {
+        if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+        { 
+          DCD_EP_Stall(pdev , ep_addr);
+          
+        }
+      }
+      pdev->dev.class_cb->Setup (pdev, req);   
+      USBD_CtlSendStatus(pdev);
+      
+      break;
+      
+    default:                         
+      USBD_CtlError(pdev , req);
+      break;    
+    }
+    break;
+    
+  case USB_REQ_CLEAR_FEATURE :
+    
+    switch (pdev->dev.device_status) 
+    {
+    case USB_OTG_ADDRESSED:          
+      if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+      {
+        DCD_EP_Stall(pdev , ep_addr);
+      }
+      break;	
+      
+    case USB_OTG_CONFIGURED:   
+      if (req->wValue == USB_FEATURE_EP_HALT)
+      {
+        if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+        {        
+          DCD_EP_ClrStall(pdev , ep_addr);
+          pdev->dev.class_cb->Setup (pdev, req);
+        }
+        USBD_CtlSendStatus(pdev);
+      }
+      break;
+      
+    default:                         
+       USBD_CtlError(pdev , req);
+      break;    
+    }
+    break;
+    
+  case USB_REQ_GET_STATUS:                  
+    switch (pdev->dev.device_status) 
+    {
+    case USB_OTG_ADDRESSED:          
+      if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+      {
+        DCD_EP_Stall(pdev , ep_addr);
+      }
+      break;	
+      
+    case USB_OTG_CONFIGURED:         
+      
+      
+      if ((ep_addr & 0x80)== 0x80)
+      {
+        if(pdev->dev.in_ep[ep_addr & 0x7F].is_stall)
+        {
+          USBD_ep_status = 0x0001;     
+        }
+        else
+        {
+          USBD_ep_status = 0x0000;  
+        }
+      }
+      else if ((ep_addr & 0x80)== 0x00)
+      {
+        if(pdev->dev.out_ep[ep_addr].is_stall)
+        {
+          USBD_ep_status = 0x0001;     
+        }
+        
+        else 
+        {
+          USBD_ep_status = 0x0000;     
+        }      
+      }
+      USBD_CtlSendData (pdev,
+                        (uint8_t *)&USBD_ep_status,
+                        2);
+      break;
+      
+    default:                         
+       USBD_CtlError(pdev , req);
+      break;
+    }
+    break;
+    
+  default:
+    break;
+  }
+  return ret;
+}
+/**
+* @brief  USBD_GetDescriptor
+*         Handle Get Descriptor requests
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_GetDescriptor(USB_OTG_CORE_HANDLE  *pdev, 
+                               USB_SETUP_REQ *req)
+{
+  uint16_t len;
+  uint8_t *pbuf;
+  
+    
+  switch (req->wValue >> 8)
+  {
+  case USB_DESC_TYPE_DEVICE:
+    pbuf = pdev->dev.usr_device->GetDeviceDescriptor(pdev->cfg.speed, &len);
+    if ((req->wLength == 64) ||( pdev->dev.device_status == USB_OTG_DEFAULT))  
+    {                  
+      len = 8;
+    }
+    break;
+    
+  case USB_DESC_TYPE_CONFIGURATION:
+      pbuf   = (uint8_t *)pdev->dev.class_cb->GetConfigDescriptor(pdev->cfg.speed, &len);
+#ifdef USB_OTG_HS_CORE
+    if((pdev->cfg.speed == USB_OTG_SPEED_FULL )&&
+       (pdev->cfg.phy_itface  == USB_OTG_ULPI_PHY))
+    {
+      pbuf   = (uint8_t *)pdev->dev.class_cb->GetOtherConfigDescriptor(pdev->cfg.speed, &len);
+    }
+#endif  
+    pbuf[1] = USB_DESC_TYPE_CONFIGURATION;
+    pdev->dev.pConfig_descriptor = pbuf;    
+    break;
+    
+  case USB_DESC_TYPE_STRING:
+    switch ((uint8_t)(req->wValue))
+    {
+    case USBD_IDX_LANGID_STR:
+     pbuf = pdev->dev.usr_device->GetLangIDStrDescriptor(pdev->cfg.speed, &len);        
+      break;
+      
+    case USBD_IDX_MFC_STR:
+      pbuf = pdev->dev.usr_device->GetManufacturerStrDescriptor(pdev->cfg.speed, &len);
+      break;
+      
+    case USBD_IDX_PRODUCT_STR:
+      pbuf = pdev->dev.usr_device->GetProductStrDescriptor(pdev->cfg.speed, &len);
+      break;
+      
+    case USBD_IDX_SERIAL_STR:
+      pbuf = pdev->dev.usr_device->GetSerialStrDescriptor(pdev->cfg.speed, &len);
+      break;
+      
+    case USBD_IDX_CONFIG_STR:
+      pbuf = pdev->dev.usr_device->GetConfigurationStrDescriptor(pdev->cfg.speed, &len);
+      break;
+      
+    case USBD_IDX_INTERFACE_STR:
+      pbuf = pdev->dev.usr_device->GetInterfaceStrDescriptor(pdev->cfg.speed, &len);
+      break;
+      
+    default:
+#ifdef USB_SUPPORT_USER_STRING_DESC
+      pbuf = pdev->dev.class_cb->GetUsrStrDescriptor(pdev->cfg.speed, (req->wValue) , &len);
+      break;
+#else      
+       USBD_CtlError(pdev , req);
+      return;
+#endif /* USBD_CtlError(pdev , req); */      
+    }
+    break;
+  case USB_DESC_TYPE_DEVICE_QUALIFIER:                   
+#ifdef USB_OTG_HS_CORE
+    if(pdev->cfg.speed == USB_OTG_SPEED_HIGH  )   
+    {
+      
+      pbuf   = (uint8_t *)pdev->dev.class_cb->GetConfigDescriptor(pdev->cfg.speed, &len);
+            
+      USBD_DeviceQualifierDesc[4]= pbuf[14];
+      USBD_DeviceQualifierDesc[5]= pbuf[15];
+      USBD_DeviceQualifierDesc[6]= pbuf[16];
+      
+      pbuf = USBD_DeviceQualifierDesc;
+      len  = USB_LEN_DEV_QUALIFIER_DESC;
+      break;
+    }
+    else
+    {
+      USBD_CtlError(pdev , req);
+      return;
+    }
+#else
+      USBD_CtlError(pdev , req);
+      return;
+#endif    
+
+  case USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION:
+#ifdef USB_OTG_HS_CORE   
+
+    if(pdev->cfg.speed == USB_OTG_SPEED_HIGH  )   
+    {
+      pbuf   = (uint8_t *)pdev->dev.class_cb->GetOtherConfigDescriptor(pdev->cfg.speed, &len);
+      pbuf[1] = USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION;
+      break; 
+    }
+    else
+    {
+      USBD_CtlError(pdev , req);
+      return;
+    }
+#else
+      USBD_CtlError(pdev , req);
+      return;
+#endif     
+
+    
+  default: 
+     USBD_CtlError(pdev , req);
+    return;
+  }
+  
+  if((len != 0)&& (req->wLength != 0))
+  {
+    
+    len = MIN(len , req->wLength);
+    
+    USBD_CtlSendData (pdev, 
+                      pbuf,
+                      len);
+  }
+  
+}
+
+/**
+* @brief  USBD_SetAddress
+*         Set device address
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_SetAddress(USB_OTG_CORE_HANDLE  *pdev, 
+                            USB_SETUP_REQ *req)
+{
+  uint8_t  dev_addr; 
+  
+  if ((req->wIndex == 0) && (req->wLength == 0)) 
+  {
+    dev_addr = (uint8_t)(req->wValue) & 0x7F;     
+    
+    if (pdev->dev.device_status == USB_OTG_CONFIGURED) 
+    {
+      USBD_CtlError(pdev , req);
+    } 
+    else 
+    {
+      pdev->dev.device_address = dev_addr;
+      DCD_EP_SetAddress(pdev, dev_addr);               
+      USBD_CtlSendStatus(pdev);                         
+      
+      if (dev_addr != 0) 
+      {
+        pdev->dev.device_status  = USB_OTG_ADDRESSED;
+      } 
+      else 
+      {
+        pdev->dev.device_status  = USB_OTG_DEFAULT; 
+      }
+    }
+  } 
+  else 
+  {
+     USBD_CtlError(pdev , req);                        
+  } 
+}
+
+/**
+* @brief  USBD_SetConfig
+*         Handle Set device configuration request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_SetConfig(USB_OTG_CORE_HANDLE  *pdev, 
+                           USB_SETUP_REQ *req)
+{
+  
+  static uint8_t  cfgidx;
+  
+  cfgidx = (uint8_t)(req->wValue);                 
+  
+  if (cfgidx > USBD_CFG_MAX_NUM ) 
+  {            
+     USBD_CtlError(pdev , req);                              
+  } 
+  else 
+  {
+    switch (pdev->dev.device_status) 
+    {
+    case USB_OTG_ADDRESSED:
+      if (cfgidx) 
+      {                                			   							   							   				
+        pdev->dev.device_config = cfgidx;
+        pdev->dev.device_status = USB_OTG_CONFIGURED;
+        USBD_SetCfg(pdev , cfgidx);
+        USBD_CtlSendStatus(pdev);
+      }
+      else 
+      {
+         USBD_CtlSendStatus(pdev);
+      }
+      break;
+      
+    case USB_OTG_CONFIGURED:
+      if (cfgidx == 0) 
+      {                           
+        pdev->dev.device_status = USB_OTG_ADDRESSED;
+        pdev->dev.device_config = cfgidx;          
+        USBD_ClrCfg(pdev , cfgidx);
+        USBD_CtlSendStatus(pdev);
+        
+      } 
+      else  if (cfgidx != pdev->dev.device_config) 
+      {
+        /* Clear old configuration */
+        USBD_ClrCfg(pdev , pdev->dev.device_config);
+        
+        /* set new configuration */
+        pdev->dev.device_config = cfgidx;
+        USBD_SetCfg(pdev , cfgidx);
+        USBD_CtlSendStatus(pdev);
+      }
+      else
+      {
+        USBD_CtlSendStatus(pdev);
+      }
+      break;
+      
+    default:					
+       USBD_CtlError(pdev , req);                     
+      break;
+    }
+  }
+}
+
+/**
+* @brief  USBD_GetConfig
+*         Handle Get device configuration request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_GetConfig(USB_OTG_CORE_HANDLE  *pdev, 
+                           USB_SETUP_REQ *req)
+{
+ 
+  if (req->wLength != 1) 
+  {                   
+     USBD_CtlError(pdev , req);
+  }
+  else 
+  {
+    switch (pdev->dev.device_status )  
+    {
+    case USB_OTG_ADDRESSED:                     
+      
+      USBD_CtlSendData (pdev, 
+                        (uint8_t *)&USBD_default_cfg,
+                        1);
+      break;
+      
+    case USB_OTG_CONFIGURED:                   
+      
+      USBD_CtlSendData (pdev, 
+                        &pdev->dev.device_config,
+                        1);
+      break;
+      
+    default:
+       USBD_CtlError(pdev , req);
+      break;
+    }
+  }
+}
+
+/**
+* @brief  USBD_GetStatus
+*         Handle Get Status request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_GetStatus(USB_OTG_CORE_HANDLE  *pdev, 
+                           USB_SETUP_REQ *req)
+{
+  
+    
+  switch (pdev->dev.device_status) 
+  {
+  case USB_OTG_ADDRESSED:
+  case USB_OTG_CONFIGURED:
+    
+#ifdef USBD_SELF_POWERED
+    USBD_cfg_status = USB_CONFIG_SELF_POWERED;                                    
+#else
+    USBD_cfg_status = 0x00;                                    
+#endif
+                      
+    if (pdev->dev.DevRemoteWakeup) 
+    {
+      USBD_cfg_status |= USB_CONFIG_REMOTE_WAKEUP;                                
+    }
+    
+    USBD_CtlSendData (pdev, 
+                      (uint8_t *)&USBD_cfg_status,
+                      2);
+    break;
+    
+  default :
+    USBD_CtlError(pdev , req);                        
+    break;
+  }
+}
+
+
+/**
+* @brief  USBD_SetFeature
+*         Handle Set device feature request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_SetFeature(USB_OTG_CORE_HANDLE  *pdev, 
+                            USB_SETUP_REQ *req)
+{
+
+  USB_OTG_DCTL_TypeDef     dctl;
+  uint8_t test_mode = 0;
+ 
+  if (req->wValue == USB_FEATURE_REMOTE_WAKEUP)
+  {
+    pdev->dev.DevRemoteWakeup = 1;  
+    pdev->dev.class_cb->Setup (pdev, req);   
+    USBD_CtlSendStatus(pdev);
+  }
+
+  else if ((req->wValue == USB_FEATURE_TEST_MODE) && 
+           ((req->wIndex & 0xFF) == 0))
+  {
+    dctl.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCTL);
+    
+    test_mode = req->wIndex >> 8;
+    switch (test_mode) 
+    {
+    case 1: // TEST_J
+      dctl.b.tstctl = 1;
+      break;
+      
+    case 2: // TEST_K	
+      dctl.b.tstctl = 2;
+      break;
+      
+    case 3: // TEST_SE0_NAK
+      dctl.b.tstctl = 3;
+      break;
+      
+    case 4: // TEST_PACKET
+      dctl.b.tstctl = 4;
+      break;
+      
+    case 5: // TEST_FORCE_ENABLE
+      dctl.b.tstctl = 5;
+      break;
+    }
+    SET_TEST_MODE = dctl;
+    pdev->dev.test_mode = 1;
+    USBD_CtlSendStatus(pdev);
+  }
+
+}
+
+
+/**
+* @brief  USBD_ClrFeature
+*         Handle clear device feature request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_ClrFeature(USB_OTG_CORE_HANDLE  *pdev, 
+                            USB_SETUP_REQ *req)
+{
+  switch (pdev->dev.device_status)
+  {
+  case USB_OTG_ADDRESSED:
+  case USB_OTG_CONFIGURED:
+    if (req->wValue == USB_FEATURE_REMOTE_WAKEUP) 
+    {
+      pdev->dev.DevRemoteWakeup = 0; 
+      pdev->dev.class_cb->Setup (pdev, req);   
+      USBD_CtlSendStatus(pdev);
+    }
+    break;
+    
+  default :
+     USBD_CtlError(pdev , req);
+    break;
+  }
+}
+
+/**
+* @brief  USBD_ParseSetupRequest 
+*         Copy buffer into setup structure
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval None
+*/
+
+void USBD_ParseSetupRequest( USB_OTG_CORE_HANDLE  *pdev,
+                            USB_SETUP_REQ *req)
+{
+  req->bmRequest     = *(uint8_t *)  (pdev->dev.setup_packet);
+  req->bRequest      = *(uint8_t *)  (pdev->dev.setup_packet +  1);
+  req->wValue        = SWAPBYTE      (pdev->dev.setup_packet +  2);
+  req->wIndex        = SWAPBYTE      (pdev->dev.setup_packet +  4);
+  req->wLength       = SWAPBYTE      (pdev->dev.setup_packet +  6);
+  
+  pdev->dev.in_ep[0].ctl_data_len = req->wLength  ;
+  pdev->dev.device_state = USB_OTG_EP0_SETUP;
+}
+
+/**
+* @brief  USBD_CtlError 
+*         Handle USB low level Error
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval None
+*/
+
+void USBD_CtlError( USB_OTG_CORE_HANDLE  *pdev,
+                            USB_SETUP_REQ *req)
+{
+  
+  DCD_EP_Stall(pdev , 0x80);
+  DCD_EP_Stall(pdev , 0);
+  USB_OTG_EP0_OutStart(pdev);  
+}
+
+
+/**
+  * @brief  USBD_GetString
+  *         Convert Ascii string into unicode one
+  * @param  desc : descriptor buffer
+  * @param  unicode : Formatted string buffer (unicode)
+  * @param  len : descriptor length
+  * @retval None
+  */
+void USBD_GetString(uint8_t *desc, uint8_t *unicode, uint16_t *len)
+{
+  uint8_t idx = 0;
+  
+  if (desc != NULL) 
+  {
+    *len =  USBD_GetLen(desc) * 2 + 2;    
+    unicode[idx++] = *len;
+    unicode[idx++] =  USB_DESC_TYPE_STRING;
+    
+    while (*desc != NULL) 
+    {
+      unicode[idx++] = *desc++;
+      unicode[idx++] =  0x00;
+    }
+  } 
+}
+
+/**
+  * @brief  USBD_GetLen
+  *         return the string length
+   * @param  buf : pointer to the ascii string buffer
+  * @retval string length
+  */
+static uint8_t USBD_GetLen(uint8_t *buf)
+{
+    uint8_t  len = 0;
+
+    while (*buf != NULL) 
+    {
+        len++;
+        buf++;
+    }
+
+    return len;
+}
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
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+  <o:Author>STMicroelectronics</o:Author>
+  <o:LastAuthor>Raouf Hosni</o:LastAuthor>
+  <o:Revision>39</o:Revision>
+  <o:TotalTime>137</o:TotalTime>
+  <o:Created>2009-02-27T19:26:00Z</o:Created>
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+	mso-font-signature:0 0 0 0 0 0;}
+@font-face
+	{font-family:Calibri;
+	panose-1:2 15 5 2 2 2 4 3 2 4;
+	mso-font-charset:0;
+	mso-generic-font-family:swiss;
+	mso-font-pitch:variable;
+	mso-font-signature:-1610611985 1073750139 0 0 159 0;}
+@font-face
+	{font-family:Tahoma;
+	panose-1:2 11 6 4 3 5 4 4 2 4;
+	mso-font-charset:0;
+	mso-generic-font-family:swiss;
+	mso-font-pitch:variable;
+	mso-font-signature:1627400839 -2147483648 8 0 66047 0;}
+@font-face
+	{font-family:Verdana;
+	panose-1:2 11 6 4 3 5 4 4 2 4;
+	mso-font-charset:0;
+	mso-generic-font-family:swiss;
+	mso-font-pitch:variable;
+	mso-font-signature:536871559 0 0 0 415 0;}
+ /* Style Definitions */
+ p.MsoNormal, li.MsoNormal, div.MsoNormal
+	{mso-style-unhide:no;
+	mso-style-qformat:yes;
+	mso-style-parent:"";
+	margin:0in;
+	margin-bottom:.0001pt;
+	mso-pagination:widow-orphan;
+	font-size:12.0pt;
+	font-family:"Times New Roman","serif";
+	mso-fareast-font-family:"Times New Roman";}
+h1
+	{mso-style-unhide:no;
+	mso-style-qformat:yes;
+	mso-style-link:"Heading 1 Char";
+	mso-margin-top-alt:auto;
+	margin-right:0in;
+	mso-margin-bottom-alt:auto;
+	margin-left:0in;
+	mso-pagination:widow-orphan;
+	mso-outline-level:1;
+	font-size:24.0pt;
+	font-family:"Times New Roman","serif";
+	mso-fareast-font-family:"Times New Roman";
+	mso-fareast-theme-font:minor-fareast;
+	font-weight:bold;}
+h2
+	{mso-style-unhide:no;
+	mso-style-qformat:yes;
+	mso-style-link:"Heading 2 Char";
+	mso-style-next:Normal;
+	margin-top:12.0pt;
+	margin-right:0in;
+	margin-bottom:3.0pt;
+	margin-left:0in;
+	mso-pagination:widow-orphan;
+	page-break-after:avoid;
+	mso-outline-level:2;
+	font-size:14.0pt;
+	font-family:"Arial","sans-serif";
+	mso-fareast-font-family:"Times New Roman";
+	mso-fareast-theme-font:minor-fareast;
+	font-weight:bold;
+	font-style:italic;}
+h3
+	{mso-style-unhide:no;
+	mso-style-qformat:yes;
+	mso-style-link:"Heading 3 Char";
+	mso-margin-top-alt:auto;
+	margin-right:0in;
+	mso-margin-bottom-alt:auto;
+	margin-left:0in;
+	mso-pagination:widow-orphan;
+	mso-outline-level:3;
+	font-size:13.5pt;
+	font-family:"Times New Roman","serif";
+	mso-fareast-font-family:"Times New Roman";
+	mso-fareast-theme-font:minor-fareast;
+	font-weight:bold;}
+a:link, span.MsoHyperlink
+	{mso-style-unhide:no;
+	color:blue;
+	text-decoration:underline;
+	text-underline:single;}
+a:visited, span.MsoHyperlinkFollowed
+	{mso-style-unhide:no;
+	color:blue;
+	text-decoration:underline;
+	text-underline:single;}
+p
+	{mso-style-unhide:no;
+	mso-margin-top-alt:auto;
+	margin-right:0in;
+	mso-margin-bottom-alt:auto;
+	margin-left:0in;
+	mso-pagination:widow-orphan;
+	font-size:12.0pt;
+	font-family:"Times New Roman","serif";
+	mso-fareast-font-family:"Times New Roman";}
+p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
+	{mso-style-unhide:no;
+	mso-style-link:"Balloon Text Char";
+	margin:0in;
+	margin-bottom:.0001pt;
+	mso-pagination:widow-orphan;
+	font-size:8.0pt;
+	font-family:"Tahoma","sans-serif";
+	mso-fareast-font-family:"Times New Roman";}
+span.Heading1Char
+	{mso-style-name:"Heading 1 Char";
+	mso-style-unhide:no;
+	mso-style-locked:yes;
+	mso-style-link:"Heading 1";
+	mso-ansi-font-size:14.0pt;
+	mso-bidi-font-size:14.0pt;
+	font-family:"Cambria","serif";
+	mso-ascii-font-family:Cambria;
+	mso-ascii-theme-font:major-latin;
+	mso-fareast-font-family:"Times New Roman";
+	mso-fareast-theme-font:major-fareast;
+	mso-hansi-font-family:Cambria;
+	mso-hansi-theme-font:major-latin;
+	mso-bidi-font-family:"Times New Roman";
+	mso-bidi-theme-font:major-bidi;
+	color:#365F91;
+	mso-themecolor:accent1;
+	mso-themeshade:191;
+	font-weight:bold;}
+span.Heading2Char
+	{mso-style-name:"Heading 2 Char";
+	mso-style-unhide:no;
+	mso-style-locked:yes;
+	mso-style-link:"Heading 2";
+	mso-ansi-font-size:13.0pt;
+	mso-bidi-font-size:13.0pt;
+	font-family:"Cambria","serif";
+	mso-ascii-font-family:Cambria;
+	mso-ascii-theme-font:major-latin;
+	mso-fareast-font-family:"Times New Roman";
+	mso-fareast-theme-font:major-fareast;
+	mso-hansi-font-family:Cambria;
+	mso-hansi-theme-font:major-latin;
+	mso-bidi-font-family:"Times New Roman";
+	mso-bidi-theme-font:major-bidi;
+	color:#4F81BD;
+	mso-themecolor:accent1;
+	font-weight:bold;}
+span.Heading3Char
+	{mso-style-name:"Heading 3 Char";
+	mso-style-unhide:no;
+	mso-style-locked:yes;
+	mso-style-link:"Heading 3";
+	mso-ansi-font-size:12.0pt;
+	mso-bidi-font-size:12.0pt;
+	font-family:"Cambria","serif";
+	mso-ascii-font-family:Cambria;
+	mso-ascii-theme-font:major-latin;
+	mso-fareast-font-family:"Times New Roman";
+	mso-fareast-theme-font:major-fareast;
+	mso-hansi-font-family:Cambria;
+	mso-hansi-theme-font:major-latin;
+	mso-bidi-font-family:"Times New Roman";
+	mso-bidi-theme-font:major-bidi;
+	color:#4F81BD;
+	mso-themecolor:accent1;
+	font-weight:bold;}
+span.BalloonTextChar
+	{mso-style-name:"Balloon Text Char";
+	mso-style-unhide:no;
+	mso-style-locked:yes;
+	mso-style-link:"Balloon Text";
+	mso-ansi-font-size:8.0pt;
+	mso-bidi-font-size:8.0pt;
+	font-family:"Tahoma","sans-serif";
+	mso-ascii-font-family:Tahoma;
+	mso-hansi-font-family:Tahoma;
+	mso-bidi-font-family:Tahoma;}
+.MsoChpDefault
+	{mso-style-type:export-only;
+	mso-default-props:yes;
+	font-size:10.0pt;
+	mso-ansi-font-size:10.0pt;
+	mso-bidi-font-size:10.0pt;}
+@page WordSection1
+	{size:8.5in 11.0in;
+	margin:1.0in 1.25in 1.0in 1.25in;
+	mso-header-margin:.5in;
+	mso-footer-margin:.5in;
+	mso-paper-source:0;}
+div.WordSection1
+	{page:WordSection1;}
+ /* List Definitions */
+ @list l0
+	{mso-list-id:62067358;
+	mso-list-template-ids:-174943062;}
+@list l0:level1
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l0:level2
+	{mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l0:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l0:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l0:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l0:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l0:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l0:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l0:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1
+	{mso-list-id:128015942;
+	mso-list-template-ids:-90681214;}
+@list l1:level1
+	{mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level2
+	{mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l1:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l2
+	{mso-list-id:216556000;
+	mso-list-template-ids:925924412;}
+@list l2:level1
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l2:level2
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l2:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l2:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l2:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l2:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l2:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l2:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l2:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3
+	{mso-list-id:562446694;
+	mso-list-template-ids:913898366;}
+@list l3:level1
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l3:level2
+	{mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l3:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4
+	{mso-list-id:797802132;
+	mso-list-template-ids:-1971191336;}
+@list l4:level1
+	{mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level2
+	{mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l4:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5
+	{mso-list-id:907304066;
+	mso-list-template-ids:1969781532;}
+@list l5:level1
+	{mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level2
+	{mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l5:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l6
+	{mso-list-id:1050613616;
+	mso-list-template-ids:-1009886748;}
+@list l6:level1
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l6:level2
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l6:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l6:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l6:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l6:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l6:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l6:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l6:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l7
+	{mso-list-id:1234970193;
+	mso-list-template-ids:2055904002;}
+@list l7:level1
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l7:level2
+	{mso-level-number-format:bullet;
+	mso-level-text:\F0B7;
+	mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;
+	mso-ansi-font-size:10.0pt;
+	font-family:Symbol;}
+@list l7:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l7:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l7:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l7:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l7:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l7:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l7:level9
+	{mso-level-tab-stop:4.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8
+	{mso-list-id:1846092290;
+	mso-list-template-ids:-768590846;}
+@list l8:level1
+	{mso-level-start-at:2;
+	mso-level-tab-stop:.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8:level2
+	{mso-level-tab-stop:1.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8:level3
+	{mso-level-tab-stop:1.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8:level4
+	{mso-level-tab-stop:2.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8:level5
+	{mso-level-tab-stop:2.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8:level6
+	{mso-level-tab-stop:3.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8:level7
+	{mso-level-tab-stop:3.5in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
+@list l8:level8
+	{mso-level-tab-stop:4.0in;
+	mso-level-number-position:left;
+	text-indent:-.25in;}
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+	{margin-bottom:0in;}
+ul
+	{margin-bottom:0in;}
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+</style><!--[if gte mso 10]>
+<style>
+ /* Style Definitions */
+ table.MsoNormalTable
+	{mso-style-name:"Table Normal";
+	mso-tstyle-rowband-size:0;
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+	mso-pagination:widow-orphan;
+	font-size:10.0pt;
+	font-family:"Times New Roman","serif";}
+</style>
+<![endif]--><!--[if gte mso 9]><xml>
+ <o:shapedefaults v:ext="edit" spidmax="7170"/>
+</xml><![endif]--><!--[if gte mso 9]><xml>
+ <o:shapelayout v:ext="edit">
+  <o:idmap v:ext="edit" data="1"/>
+ </o:shapelayout></xml><![endif]--><meta content="MCD Application Team" name="author"></head>
+<body style="" link="blue" vlink="blue">
+
+<div class="WordSection1">
+
+<p class="MsoNormal"><span style="font-family: &quot;Arial&quot;,&quot;sans-serif&quot;;"><o:p>&nbsp;</o:p></span></p>
+
+<div align="center">
+
+<table class="MsoNormalTable" style="width: 675pt;" border="0" cellpadding="0" cellspacing="0" width="900">
+ <tbody><tr style="">
+  <td style="padding: 0in;" valign="top">
+  <table class="MsoNormalTable" style="width: 675pt;" border="0" cellpadding="0" cellspacing="0" width="900">
+   <tbody><tr style="">
+    <td style="padding: 0in 5.4pt;" valign="top">
+    <p class="MsoNormal"><span style="font-size: 8pt; font-family: &quot;Arial&quot;,&quot;sans-serif&quot;; color: blue;"><a href="../../Release_Notes.html">Back to Release page</a></span><span style="font-size: 10pt;"><o:p></o:p></span></p>
+    </td>
+   </tr>
+   <tr style="">
+    <td style="padding: 1.5pt;">
+    <h1 style="margin-bottom: 0.25in; text-align: center;" align="center"><span style="font-size: 20pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: rgb(51, 102, 255);">Release Notes for STM32F105/7xx, STM32F2xx and STM32F4xx&nbsp;USB Device Library</span><span style="font-size: 20pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;;"><o:p></o:p></span></h1>
+    <p class="MsoNormal" style="text-align: center;" align="center"><span style="font-size: 10pt; font-family: &quot;Arial&quot;,&quot;sans-serif&quot;; color: black;">Copyright
+    2012 STMicroelectronics</span><span style="color: black;"><u1:p></u1:p><o:p></o:p></span></p>
+    <p class="MsoNormal" style="text-align: center;" align="center"><span style="font-size: 10pt; font-family: &quot;Arial&quot;,&quot;sans-serif&quot;; color: black;"><img style="border: 0px solid ; width: 86px; height: 65px;" alt="" id="_x0000_i1026" src="../../_htmresc/logo.bmp"></span><span style="font-size: 10pt;"><o:p></o:p></span></p>
+    </td>
+   </tr>
+  </tbody></table>
+  <p class="MsoNormal"><span style="font-family: &quot;Arial&quot;,&quot;sans-serif&quot;; display: none;"><o:p>&nbsp;</o:p></span></p>
+  <table class="MsoNormalTable" style="width: 675pt;" border="0" cellpadding="0" width="900">
+   <tbody><tr style="">
+    <td style="padding: 0in;" valign="top">
+    <h2 style="background: rgb(51, 102, 255) none repeat scroll 0% 50%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial;"><span style="font-size: 12pt; color: white;">Contents<o:p></o:p></span></h2>
+    <ol style="margin-top: 0in;" start="1" type="1">
+     <li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;;"><a href="#History">Update History</a><o:p></o:p></span></li>
+     <li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;;"><a href="#License">License</a><o:p></o:p></span></li>
+    </ol>
+    <h2 style="background: rgb(51, 102, 255) none repeat scroll 0% 50%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial;"><a name="History"></a><span style="font-size: 12pt; color: white;">Update History</span></h2><h3 style="background: rgb(51, 102, 255) none repeat scroll 0% 50%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial; margin-right: 500pt; width: 200px;"><span style="font-size: 10pt; font-family: Arial; color: white;">V1.1.0 / 19-March-2012<o:p></o:p></span></h3>
+            <p class="MsoNormal" style="margin: 4.5pt 0cm 4.5pt 18pt;"><b style=""><u><span style="font-size: 10pt; font-family: Verdana; color: black;">Main
+Changes<o:p></o:p></span></u></b></p>
+
+            <ul style="margin-top: 0cm;" type="square"><li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: Verdana;">Official support of </span><span style="font-size: 10pt; font-family: Verdana;"><span style="font-weight: bold; font-style: italic;">STM32F4xx</span> devices</span></li><li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: Verdana;">All source files: license disclaimer text update and add link to the License file on ST Internet.<br></span></li><li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: Verdana;">Handle test mode in the set feature request</span></li><li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: Verdana;">Handle dynamically the USB SELF POWERED feature</span></li><li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: Verdana;">Handle correctly the USBD_CtlError process to take into account error during Control OUT stage</span></li><li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: Verdana;">Miscellaneous bug fix</span></li></ul><h3 style="background: rgb(51, 102, 255) none repeat scroll 0% 50%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial; margin-right: 500pt; width: 171px;"><span style="font-size: 10pt; font-family: Arial; color: white;">V1.0.0 / 22-July-2011<o:p></o:p></span></h3><p class="MsoNormal" style="margin: 4.5pt 0cm 4.5pt 18pt;"><b style=""><u><span style="font-size: 10pt; font-family: Verdana; color: black;">Main
+Changes<o:p></o:p></span></u></b></p>
+<ul style="margin-top: 0cm;" type="square"><li class="MsoNormal" style="color: black; margin-top: 4.5pt; margin-bottom: 4.5pt;"><span style="font-size: 10pt; font-family: Verdana;">First official version for <span style="font-weight: bold; font-style: italic;">STM32F105/7xx</span> and <span style="font-weight: bold; font-style: italic;">STM32F2xx</span> devices</span></li></ul><span style="font-size: 10pt; font-family: Verdana;"></span><br><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;;"></span>
+    <h2 style="background: rgb(51, 102, 255) none repeat scroll 0% 50%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial;"><a name="License"></a><span style="font-size: 12pt; color: white;">License<o:p></o:p></span></h2>
+    <p class="MsoNormal"><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black;">Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You may not use this&nbsp;</span><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black;">package</span><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black;"> except in compliance with the License. You may obtain a copy of the License at:<br><br></span></p><div style="text-align: center;"><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a target="_blank" href="http://www.st.com/software_license_agreement_liberty_v2">http://www.st.com/software_license_agreement_liberty_v2</a></span><br><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black;"></span></div><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black;"><br>Unless
+required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, <br>WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
+the License for the specific language governing permissions and
+limitations under the License.</span>
+    <div class="MsoNormal" style="text-align: center;" align="center"><span style="color: black;">
+    <hr align="center" size="2" width="100%">
+    </span></div>
+    <p class="MsoNormal" style="margin: 4.5pt 0in 4.5pt 0.25in; text-align: center;" align="center"><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;; color: black;">For
+    complete documentation on </span><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;;">STM32<span style="color: black;">
+    Microcontrollers visit </span><u><span style="color: blue;"><a href="http://www.st.com/internet/mcu/family/141.jsp" target="_blank">www.st.com/STM32</a></span></u></span><span style="font-size: 10pt; font-family: &quot;Verdana&quot;,&quot;sans-serif&quot;;"><u><span style="color: blue;"><a href="http://www.st.com/stm32" target="_blank"></a></span></u></span><span style="color: black;"><o:p></o:p></span></p>
+    </td>
+   </tr>
+  </tbody></table>
+  <p class="MsoNormal"><span style="font-size: 10pt;"><o:p></o:p></span></p>
+  </td>
+ </tr>
+</tbody></table>
+
+</div>
+
+<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
+
+</div>
+
+</body></html>
\ No newline at end of file
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/HID/inc/usbh_hid_core.h
@@ -1,0 +1,203 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hid_core.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file contains all the prototypes for the usbh_hid_core.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_HID_CORE_H
+#define __USBH_HID_CORE_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_core.h"
+#include "usbh_stdreq.h"
+#include "usb_bsp.h"
+#include "usbh_ioreq.h"
+#include "usbh_hcs.h"
+ 
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_HID_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_HID_CORE
+  * @brief This file is the Header file for USBH_HID_CORE.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_HID_CORE_Exported_Types
+  * @{
+  */ 
+
+#define HID_MIN_POLL          10
+
+/* States for HID State Machine */
+typedef enum
+{
+  HID_IDLE= 0,
+  HID_SEND_DATA,
+  HID_BUSY,
+  HID_GET_DATA,   
+  HID_SYNC,     
+  HID_POLL,
+  HID_ERROR,
+}
+HID_State;
+
+typedef enum
+{
+  HID_REQ_IDLE = 0,
+  HID_REQ_GET_REPORT_DESC,
+  HID_REQ_GET_HID_DESC,
+  HID_REQ_SET_IDLE,
+  HID_REQ_SET_PROTOCOL,
+  HID_REQ_SET_REPORT,
+
+}
+HID_CtlState;
+
+typedef struct HID_cb
+{
+  void  (*Init)   (void);             
+  void  (*Decode) (uint8_t *data);       
+  
+} HID_cb_TypeDef;
+
+typedef  struct  _HID_Report 
+{
+    uint8_t   ReportID;    
+    uint8_t   ReportType;  
+    uint16_t  UsagePage;   
+    uint32_t  Usage[2]; 
+    uint32_t  NbrUsage;                      
+    uint32_t  UsageMin;                      
+    uint32_t  UsageMax;                      
+    int32_t   LogMin;                        
+    int32_t   LogMax;                        
+    int32_t   PhyMin;                        
+    int32_t   PhyMax;                        
+    int32_t   UnitExp;                       
+    uint32_t  Unit;                          
+    uint32_t  ReportSize;                    
+    uint32_t  ReportCnt;                     
+    uint32_t  Flag;                          
+    uint32_t  PhyUsage;                      
+    uint32_t  AppUsage;                      
+    uint32_t  LogUsage;   
+} 
+HID_Report_TypeDef;
+
+/* Structure for HID process */
+typedef struct _HID_Process
+{
+  uint8_t              buff[64];
+  uint8_t              hc_num_in; 
+  uint8_t              hc_num_out; 
+  HID_State            state; 
+  uint8_t              HIDIntOutEp;
+  uint8_t              HIDIntInEp;
+  HID_CtlState         ctl_state;
+  uint16_t             length;
+  uint8_t              ep_addr;
+  uint16_t             poll; 
+  __IO uint16_t        timer; 
+  HID_cb_TypeDef             *cb;
+}
+HID_Machine_TypeDef;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_CORE_Exported_Defines
+  * @{
+  */ 
+
+#define USB_HID_REQ_GET_REPORT       0x01
+#define USB_HID_GET_IDLE             0x02
+#define USB_HID_GET_PROTOCOL         0x03
+#define USB_HID_SET_REPORT           0x09
+#define USB_HID_SET_IDLE             0x0A
+#define USB_HID_SET_PROTOCOL         0x0B    
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_CORE_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_CORE_Exported_Variables
+  * @{
+  */ 
+extern USBH_Class_cb_TypeDef  HID_cb;
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_CORE_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+USBH_Status USBH_Set_Report (USB_OTG_CORE_HANDLE *pdev,
+                             USBH_HOST *phost,
+                                  uint8_t reportType,
+                                  uint8_t reportId,
+                                  uint8_t reportLen,
+                                  uint8_t* reportBuff);
+/**
+  * @}
+  */ 
+
+
+#endif /* __USBH_HID_CORE_H */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/HID/inc/usbh_hid_keybd.h
@@ -1,0 +1,128 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hid_keybd.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file contains all the prototypes for the usbh_hid_keybd.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive -----------------------------------------------*/
+#ifndef __USBH_HID_KEYBD_H
+#define __USBH_HID_KEYBD_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+#include "usbh_hid_core.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_HID_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_HID_KEYBD
+  * @brief This file is the Header file for USBH_HID_KEYBD.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_HID_KEYBD_Exported_Types
+  * @{
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_KEYBD_Exported_Defines
+  * @{
+  */ 
+//#define QWERTY_KEYBOARD
+#define AZERTY_KEYBOARD
+
+#define  KBD_LEFT_CTRL                                  0x01
+#define  KBD_LEFT_SHIFT                                 0x02
+#define  KBD_LEFT_ALT                                   0x04
+#define  KBD_LEFT_GUI                                   0x08
+#define  KBD_RIGHT_CTRL                                 0x10
+#define  KBD_RIGHT_SHIFT                                0x20
+#define  KBD_RIGHT_ALT                                  0x40
+#define  KBD_RIGHT_GUI                                  0x80
+
+#define  KBR_MAX_NBR_PRESSED                            6
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_KEYBD_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_KEYBD_Exported_Variables
+  * @{
+  */ 
+
+extern HID_cb_TypeDef HID_KEYBRD_cb;
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_KEYBD_Exported_FunctionsPrototype
+  * @{
+  */ 
+void  USR_KEYBRD_Init (void);
+void  USR_KEYBRD_ProcessData (uint8_t pbuf);
+/**
+  * @}
+  */ 
+
+#endif /* __USBH_HID_KEYBD_H */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/HID/inc/usbh_hid_mouse.h
@@ -1,0 +1,120 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hid_mouse.h 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file contains all the prototypes for the usbh_hid_mouse.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_HID_MOUSE_H
+#define __USBH_HID_MOUSE_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_hid_core.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_HID_CLASS
+  * @{
+  */
+
+/** @defgroup USBH_HID_MOUSE
+  * @brief This file is the Header file for USBH_HID_MOUSE.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_HID_MOUSE_Exported_Types
+  * @{
+  */ 
+typedef struct _HID_MOUSE_Data
+{
+  uint8_t              x; 
+  uint8_t              y;
+  uint8_t              z;               /* Not Supported */ 
+  uint8_t              button; 
+}
+HID_MOUSE_Data_TypeDef;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_MOUSE_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_MOUSE_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_MOUSE_Exported_Variables
+  * @{
+  */ 
+
+extern HID_cb_TypeDef HID_MOUSE_cb;
+extern HID_MOUSE_Data_TypeDef	 HID_MOUSE_Data;
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_MOUSE_Exported_FunctionsPrototype
+  * @{
+  */ 
+void  USR_MOUSE_Init (void);
+void  USR_MOUSE_ProcessData (HID_MOUSE_Data_TypeDef *data);
+/**
+  * @}
+  */ 
+
+#endif /* __USBH_HID_MOUSE_H */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/HID/src/usbh_hid_core.c
@@ -1,0 +1,657 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hid_core.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file is the HID Layer Handlers for USB Host HID class.
+  *
+  * @verbatim
+  *      
+  *          ===================================================================      
+  *                                HID Class  Description
+  *          =================================================================== 
+  *           This module manages the MSC class V1.11 following the "Device Class Definition
+  *           for Human Interface Devices (HID) Version 1.11 Jun 27, 2001".
+  *           This driver implements the following aspects of the specification:
+  *             - The Boot Interface Subclass
+  *             - The Mouse and Keyboard protocols
+  *      
+  *  @endverbatim
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_hid_core.h"
+#include "usbh_hid_mouse.h"
+#include "usbh_hid_keybd.h"
+
+/** @addtogroup USBH_LIB
+* @{
+*/
+
+/** @addtogroup USBH_CLASS
+* @{
+*/
+
+/** @addtogroup USBH_HID_CLASS
+* @{
+*/
+
+/** @defgroup USBH_HID_CORE 
+* @brief    This file includes HID Layer Handlers for USB Host HID class.
+* @{
+*/ 
+
+/** @defgroup USBH_HID_CORE_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_CORE_Private_Defines
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_CORE_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_CORE_Private_Variables
+* @{
+*/
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN HID_Machine_TypeDef        HID_Machine __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN HID_Report_TypeDef         HID_Report __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN USB_Setup_TypeDef          HID_Setup __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN USBH_HIDDesc_TypeDef       HID_Desc __ALIGN_END ; 
+
+__IO uint8_t start_toggle = 0;
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_CORE_Private_FunctionPrototypes
+* @{
+*/ 
+
+static USBH_Status USBH_HID_InterfaceInit  (USB_OTG_CORE_HANDLE *pdev , 
+                                            void *phost);
+
+static void  USBH_ParseHIDDesc (USBH_HIDDesc_TypeDef *desc, uint8_t *buf);
+
+static void USBH_HID_InterfaceDeInit  (USB_OTG_CORE_HANDLE *pdev , 
+                                       void *phost);
+
+static USBH_Status USBH_HID_Handle(USB_OTG_CORE_HANDLE *pdev , 
+                                   void *phost);
+
+static USBH_Status USBH_HID_ClassRequest(USB_OTG_CORE_HANDLE *pdev , 
+                                         void *phost);
+
+static USBH_Status USBH_Get_HID_ReportDescriptor (USB_OTG_CORE_HANDLE *pdev, 
+                                                  USBH_HOST *phost,
+                                                  uint16_t length);
+
+static USBH_Status USBH_Get_HID_Descriptor (USB_OTG_CORE_HANDLE *pdev,\
+                                            USBH_HOST *phost,  
+                                            uint16_t length);
+
+static USBH_Status USBH_Set_Idle (USB_OTG_CORE_HANDLE *pdev, 
+                                  USBH_HOST *phost,
+                                  uint8_t duration,
+                                  uint8_t reportId);
+
+static USBH_Status USBH_Set_Protocol (USB_OTG_CORE_HANDLE *pdev, 
+                                      USBH_HOST *phost,
+                                      uint8_t protocol);
+
+
+USBH_Class_cb_TypeDef  HID_cb = 
+{
+  USBH_HID_InterfaceInit,
+  USBH_HID_InterfaceDeInit,
+  USBH_HID_ClassRequest,
+  USBH_HID_Handle
+};
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_CORE_Private_Functions
+* @{
+*/ 
+
+/**
+* @brief  USBH_HID_InterfaceInit 
+*         The function init the HID class.
+* @param  pdev: Selected device
+* @param  hdev: Selected device property
+* @retval  USBH_Status :Response for USB HID driver intialization
+*/
+static USBH_Status USBH_HID_InterfaceInit ( USB_OTG_CORE_HANDLE *pdev, 
+                                           void *phost)
+{	
+  uint8_t maxEP;
+  USBH_HOST *pphost = phost;
+    
+  uint8_t num =0;
+  USBH_Status status = USBH_BUSY ;
+  HID_Machine.state = HID_ERROR;
+  
+  
+  if(pphost->device_prop.Itf_Desc[0].bInterfaceSubClass  == HID_BOOT_CODE)
+  {
+    /*Decode Bootclass Protocl: Mouse or Keyboard*/
+    if(pphost->device_prop.Itf_Desc[0].bInterfaceProtocol == HID_KEYBRD_BOOT_CODE)
+    {
+      HID_Machine.cb = &HID_KEYBRD_cb;
+    }
+    else if(pphost->device_prop.Itf_Desc[0].bInterfaceProtocol  == HID_MOUSE_BOOT_CODE)		  
+    {
+      HID_Machine.cb = &HID_MOUSE_cb;
+    }
+    
+    HID_Machine.state     = HID_IDLE;
+    HID_Machine.ctl_state = HID_REQ_IDLE; 
+    HID_Machine.ep_addr   = pphost->device_prop.Ep_Desc[0][0].bEndpointAddress;
+    HID_Machine.length    = pphost->device_prop.Ep_Desc[0][0].wMaxPacketSize;
+    HID_Machine.poll      = pphost->device_prop.Ep_Desc[0][0].bInterval ;
+    
+    if (HID_Machine.poll  < HID_MIN_POLL) 
+    {
+       HID_Machine.poll = HID_MIN_POLL;
+    }
+
+    
+    /* Check fo available number of endpoints */
+    /* Find the number of EPs in the Interface Descriptor */      
+    /* Choose the lower number in order not to overrun the buffer allocated */
+    maxEP = ( (pphost->device_prop.Itf_Desc[0].bNumEndpoints <= USBH_MAX_NUM_ENDPOINTS) ? 
+             pphost->device_prop.Itf_Desc[0].bNumEndpoints :
+                 USBH_MAX_NUM_ENDPOINTS); 
+    
+    
+    /* Decode endpoint IN and OUT address from interface descriptor */
+    for (num=0; num < maxEP; num++)
+    {
+      if(pphost->device_prop.Ep_Desc[0][num].bEndpointAddress & 0x80)
+      {
+        HID_Machine.HIDIntInEp = (pphost->device_prop.Ep_Desc[0][num].bEndpointAddress);
+        HID_Machine.hc_num_in  =\
+               USBH_Alloc_Channel(pdev, 
+                                  pphost->device_prop.Ep_Desc[0][num].bEndpointAddress);
+        
+        /* Open channel for IN endpoint */
+        USBH_Open_Channel  (pdev,
+                            HID_Machine.hc_num_in,
+                            pphost->device_prop.address,
+                            pphost->device_prop.speed,
+                            EP_TYPE_INTR,
+                            HID_Machine.length); 
+      }
+      else
+      {
+        HID_Machine.HIDIntOutEp = (pphost->device_prop.Ep_Desc[0][num].bEndpointAddress);
+        HID_Machine.hc_num_out  =\
+                USBH_Alloc_Channel(pdev, 
+                                   pphost->device_prop.Ep_Desc[0][num].bEndpointAddress);
+        
+        /* Open channel for OUT endpoint */
+        USBH_Open_Channel  (pdev,
+                            HID_Machine.hc_num_out,
+                            pphost->device_prop.address,
+                            pphost->device_prop.speed,
+                            EP_TYPE_INTR,
+                            HID_Machine.length); 
+      }
+      
+    }   
+    
+     start_toggle =0;
+     status = USBH_OK; 
+  }
+  else
+  {
+    pphost->usr_cb->DeviceNotSupported();   
+  }
+  
+  return status;
+  
+}
+
+
+
+/**
+* @brief  USBH_HID_InterfaceDeInit 
+*         The function DeInit the Host Channels used for the HID class.
+* @param  pdev: Selected device
+* @param  hdev: Selected device property
+* @retval None
+*/
+void USBH_HID_InterfaceDeInit ( USB_OTG_CORE_HANDLE *pdev,
+                               void *phost)
+{	
+   //USBH_HOST *pphost = phost;
+    
+  if(HID_Machine.hc_num_in != 0x00)
+  {   
+    USB_OTG_HC_Halt(pdev, HID_Machine.hc_num_in);
+    USBH_Free_Channel  (pdev, HID_Machine.hc_num_in);
+    HID_Machine.hc_num_in = 0;     /* Reset the Channel as Free */  
+  }
+  
+  if(HID_Machine.hc_num_out != 0x00)
+  {   
+    USB_OTG_HC_Halt(pdev, HID_Machine.hc_num_out);
+    USBH_Free_Channel  (pdev, HID_Machine.hc_num_out);
+    HID_Machine.hc_num_out = 0;     /* Reset the Channel as Free */  
+  }
+ 
+  start_toggle = 0;
+}
+
+/**
+* @brief  USBH_HID_ClassRequest 
+*         The function is responsible for handling HID Class requests
+*         for HID class.
+* @param  pdev: Selected device
+* @param  hdev: Selected device property
+* @retval  USBH_Status :Response for USB Set Protocol request
+*/
+static USBH_Status USBH_HID_ClassRequest(USB_OTG_CORE_HANDLE *pdev , 
+                                         void *phost)
+{   
+    USBH_HOST *pphost = phost;
+    
+  USBH_Status status         = USBH_BUSY;
+  USBH_Status classReqStatus = USBH_BUSY;
+  
+  
+  /* Switch HID state machine */
+  switch (HID_Machine.ctl_state)
+  {
+  case HID_IDLE:  
+  case HID_REQ_GET_HID_DESC:
+    
+    /* Get HID Desc */ 
+    if (USBH_Get_HID_Descriptor (pdev, pphost, USB_HID_DESC_SIZE)== USBH_OK)
+    {
+      
+      USBH_ParseHIDDesc(&HID_Desc, pdev->host.Rx_Buffer);
+      HID_Machine.ctl_state = HID_REQ_GET_REPORT_DESC;
+    }
+    
+    break;     
+  case HID_REQ_GET_REPORT_DESC:
+    
+    
+    /* Get Report Desc */ 
+    if (USBH_Get_HID_ReportDescriptor(pdev , pphost, HID_Desc.wItemLength) == USBH_OK)
+    {
+      HID_Machine.ctl_state = HID_REQ_SET_IDLE;
+    }
+    
+    break;
+    
+  case HID_REQ_SET_IDLE:
+    
+    classReqStatus = USBH_Set_Idle (pdev, pphost, 0, 0);
+    
+    /* set Idle */
+    if (classReqStatus == USBH_OK)
+    {
+      HID_Machine.ctl_state = HID_REQ_SET_PROTOCOL;  
+    }
+    else if(classReqStatus == USBH_NOT_SUPPORTED) 
+    {
+      HID_Machine.ctl_state = HID_REQ_SET_PROTOCOL;        
+    } 
+    break; 
+    
+  case HID_REQ_SET_PROTOCOL:
+    /* set protocol */
+    if (USBH_Set_Protocol (pdev ,pphost, 0) == USBH_OK)
+    {
+      HID_Machine.ctl_state = HID_REQ_IDLE;
+      
+      /* all requests performed*/
+      status = USBH_OK; 
+    } 
+    break;
+    
+  default:
+    break;
+  }
+  
+  return status; 
+}
+
+
+/**
+* @brief  USBH_HID_Handle 
+*         The function is for managing state machine for HID data transfers 
+* @param  pdev: Selected device
+* @param  hdev: Selected device property
+* @retval USBH_Status
+*/
+static USBH_Status USBH_HID_Handle(USB_OTG_CORE_HANDLE *pdev , 
+                                   void   *phost)
+{
+  USBH_HOST *pphost = phost;
+  USBH_Status status = USBH_OK;
+  
+  switch (HID_Machine.state)
+  {
+    
+  case HID_IDLE:
+    HID_Machine.cb->Init();
+    HID_Machine.state = HID_SYNC;
+    
+  case HID_SYNC:
+
+    /* Sync with start of Even Frame */
+    if(USB_OTG_IsEvenFrame(pdev) == TRUE)
+    {
+      HID_Machine.state = HID_GET_DATA;  
+    }
+    break;
+    
+  case HID_GET_DATA:
+
+    USBH_InterruptReceiveData(pdev, 
+                              HID_Machine.buff,
+                              HID_Machine.length,
+                              HID_Machine.hc_num_in);
+    start_toggle = 1;
+    
+    HID_Machine.state = HID_POLL;
+    HID_Machine.timer = HCD_GetCurrentFrame(pdev);
+    break;
+    
+  case HID_POLL:
+    if(( HCD_GetCurrentFrame(pdev) - HID_Machine.timer) >= HID_Machine.poll)
+    {
+      HID_Machine.state = HID_GET_DATA;
+    }
+    else if(HCD_GetURB_State(pdev , HID_Machine.hc_num_in) == URB_DONE)
+    {
+      if(start_toggle == 1) /* handle data once */
+      {
+        start_toggle = 0;
+        HID_Machine.cb->Decode(HID_Machine.buff);
+      }
+    }
+    else if(HCD_GetURB_State(pdev, HID_Machine.hc_num_in) == URB_STALL) /* IN Endpoint Stalled */
+    {
+      
+      /* Issue Clear Feature on interrupt IN endpoint */ 
+      if( (USBH_ClrFeature(pdev, 
+                           pphost,
+                           HID_Machine.ep_addr,
+                           HID_Machine.hc_num_in)) == USBH_OK)
+      {
+        /* Change state to issue next IN token */
+        HID_Machine.state = HID_GET_DATA;
+        
+      }
+      
+    }      
+    break;
+    
+  default:
+    break;
+  }
+  return status;
+}
+
+
+/**
+* @brief  USBH_Get_HID_ReportDescriptor
+*         Issue report Descriptor command to the device. Once the response 
+*         received, parse the report descriptor and update the status.
+* @param  pdev   : Selected device
+* @param  Length : HID Report Descriptor Length
+* @retval USBH_Status : Response for USB HID Get Report Descriptor Request
+*/
+static USBH_Status USBH_Get_HID_ReportDescriptor (USB_OTG_CORE_HANDLE *pdev,
+                                                  USBH_HOST *phost,
+                                                  uint16_t length)
+{
+  
+  USBH_Status status;
+  
+  status = USBH_GetDescriptor(pdev,
+                              phost,
+                              USB_REQ_RECIPIENT_INTERFACE
+                                | USB_REQ_TYPE_STANDARD,                                  
+                                USB_DESC_HID_REPORT, 
+                                pdev->host.Rx_Buffer,
+                                length);
+  
+  /* HID report descriptor is available in pdev->host.Rx_Buffer.
+  In case of USB Boot Mode devices for In report handling ,
+  HID report descriptor parsing is not required.
+  In case, for supporting Non-Boot Protocol devices and output reports,
+  user may parse the report descriptor*/
+  
+  
+  return status;
+}
+
+/**
+* @brief  USBH_Get_HID_Descriptor
+*         Issue HID Descriptor command to the device. Once the response 
+*         received, parse the report descriptor and update the status.
+* @param  pdev   : Selected device
+* @param  Length : HID Descriptor Length
+* @retval USBH_Status : Response for USB HID Get Report Descriptor Request
+*/
+static USBH_Status USBH_Get_HID_Descriptor (USB_OTG_CORE_HANDLE *pdev,
+                                            USBH_HOST *phost,
+                                            uint16_t length)
+{
+  
+  USBH_Status status;
+  
+  status = USBH_GetDescriptor(pdev, 
+                              phost,
+                              USB_REQ_RECIPIENT_INTERFACE
+                                | USB_REQ_TYPE_STANDARD,                                  
+                                USB_DESC_HID,
+                                pdev->host.Rx_Buffer,
+                                length);
+ 
+  return status;
+}
+
+/**
+* @brief  USBH_Set_Idle
+*         Set Idle State. 
+* @param  pdev: Selected device
+* @param  duration: Duration for HID Idle request
+* @param  reportID : Targetted report ID for Set Idle request
+* @retval USBH_Status : Response for USB Set Idle request
+*/
+static USBH_Status USBH_Set_Idle (USB_OTG_CORE_HANDLE *pdev,
+                                  USBH_HOST *phost,
+                                  uint8_t duration,
+                                  uint8_t reportId)
+{
+  
+  phost->Control.setup.b.bmRequestType = USB_H2D | USB_REQ_RECIPIENT_INTERFACE |\
+    USB_REQ_TYPE_CLASS;
+  
+  
+  phost->Control.setup.b.bRequest = USB_HID_SET_IDLE;
+  phost->Control.setup.b.wValue.w = (duration << 8 ) | reportId;
+  
+  phost->Control.setup.b.wIndex.w = 0;
+  phost->Control.setup.b.wLength.w = 0;
+  
+  return USBH_CtlReq(pdev, phost, 0 , 0 );
+}
+
+
+/**
+* @brief  USBH_Set_Report
+*         Issues Set Report 
+* @param  pdev: Selected device
+* @param  reportType  : Report type to be sent
+* @param  reportID    : Targetted report ID for Set Report request
+* @param  reportLen   : Length of data report to be send
+* @param  reportBuff  : Report Buffer
+* @retval USBH_Status : Response for USB Set Idle request
+*/
+USBH_Status USBH_Set_Report (USB_OTG_CORE_HANDLE *pdev, 
+                                 USBH_HOST *phost,
+                                    uint8_t reportType,
+                                    uint8_t reportId,
+                                    uint8_t reportLen,
+                                    uint8_t* reportBuff)
+{
+  
+  phost->Control.setup.b.bmRequestType = USB_H2D | USB_REQ_RECIPIENT_INTERFACE |\
+    USB_REQ_TYPE_CLASS;
+  
+  
+  phost->Control.setup.b.bRequest = USB_HID_SET_REPORT;
+  phost->Control.setup.b.wValue.w = (reportType << 8 ) | reportId;
+  
+  phost->Control.setup.b.wIndex.w = 0;
+  phost->Control.setup.b.wLength.w = reportLen;
+  
+  return USBH_CtlReq(pdev, phost, reportBuff , reportLen );
+}
+
+
+/**
+* @brief  USBH_Set_Protocol
+*         Set protocol State.
+* @param  pdev: Selected device
+* @param  protocol : Set Protocol for HID : boot/report protocol
+* @retval USBH_Status : Response for USB Set Protocol request
+*/
+static USBH_Status USBH_Set_Protocol(USB_OTG_CORE_HANDLE *pdev,
+                                     USBH_HOST *phost,
+                                     uint8_t protocol)
+{
+  
+  
+  phost->Control.setup.b.bmRequestType = USB_H2D | USB_REQ_RECIPIENT_INTERFACE |\
+    USB_REQ_TYPE_CLASS;
+  
+  
+  phost->Control.setup.b.bRequest = USB_HID_SET_PROTOCOL;
+  
+  if(protocol != 0)
+  {
+    /* Boot Protocol */
+    phost->Control.setup.b.wValue.w = 0;
+  }
+  else
+  {
+    /*Report Protocol*/
+    phost->Control.setup.b.wValue.w = 1;
+  }
+  
+  phost->Control.setup.b.wIndex.w = 0;
+  phost->Control.setup.b.wLength.w = 0;
+  
+  return USBH_CtlReq(pdev, phost, 0 , 0 );
+  
+}
+
+/**
+* @brief  USBH_ParseHIDDesc 
+*         This function Parse the HID descriptor
+* @param  buf: Buffer where the source descriptor is available
+* @retval None
+*/
+static void  USBH_ParseHIDDesc (USBH_HIDDesc_TypeDef *desc, uint8_t *buf)
+{
+  
+  desc->bLength                  = *(uint8_t  *) (buf + 0);
+  desc->bDescriptorType          = *(uint8_t  *) (buf + 1);
+  desc->bcdHID                   =  LE16  (buf + 2);
+  desc->bCountryCode             = *(uint8_t  *) (buf + 4);
+  desc->bNumDescriptors          = *(uint8_t  *) (buf + 5);
+  desc->bReportDescriptorType    = *(uint8_t  *) (buf + 6);
+  desc->wItemLength              =  LE16  (buf + 7);
+  
+} 
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+
+/**
+* @}
+*/
+
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/HID/src/usbh_hid_keybd.c
@@ -1,0 +1,344 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hid_keybd.c 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file is the application layer for USB Host HID Keyboard handling
+  *          QWERTY and AZERTY Keyboard are supported as per the selection in 
+  *          usbh_hid_keybd.h              
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_hid_keybd.h"
+
+/** @addtogroup USBH_LIB
+* @{
+*/
+
+/** @addtogroup USBH_CLASS
+* @{
+*/
+
+/** @addtogroup USBH_HID_CLASS
+* @{
+*/
+
+/** @defgroup USBH_HID_KEYBD 
+* @brief    This file includes HID Layer Handlers for USB Host HID class.
+* @{
+*/ 
+
+/** @defgroup USBH_HID_KEYBD_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_KEYBD_Private_Defines
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_KEYBD_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+/** @defgroup USBH_HID_KEYBD_Private_FunctionPrototypes
+* @{
+*/ 
+static void  KEYBRD_Init (void);
+static void  KEYBRD_Decode(uint8_t *data);
+
+/**
+* @}
+*/ 
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+ #if defined   (__CC_ARM) /*!< ARM Compiler */
+  __align(4) 
+ #elif defined ( __ICCARM__ ) /*!< IAR Compiler */
+  #pragma data_alignment=4
+ #elif defined (__GNUC__) /*!< GNU Compiler */
+ #pragma pack(4) 
+ #elif defined  (__TASKING__) /*!< TASKING Compiler */                           
+  __align(4) 
+ #endif /* __CC_ARM */
+#endif
+ 
+/** @defgroup USBH_HID_KEYBD_Private_Variables
+* @{
+*/
+HID_cb_TypeDef HID_KEYBRD_cb= 
+{
+  KEYBRD_Init,
+  KEYBRD_Decode
+};
+
+/*
+*******************************************************************************
+*                                             LOCAL CONSTANTS
+*******************************************************************************
+*/
+
+static  const  uint8_t  HID_KEYBRD_Codes[] = {
+  0,     0,    0,    0,   31,   50,   48,   33, 
+  19,   34,   35,   36,   24,   37,   38,   39,       /* 0x00 - 0x0F */
+  52,    51,   25,   26,   17,   20,   32,   21,
+  23,   49,   18,   47,   22,   46,    2,    3,       /* 0x10 - 0x1F */
+  4,    5,    6,    7,    8,    9,   10,   11, 
+  43,  110,   15,   16,   61,   12,   13,   27,       /* 0x20 - 0x2F */
+  28,   29,   42,   40,   41,    1,   53,   54,  
+  55,   30,  112,  113,  114,  115,  116,  117,       /* 0x30 - 0x3F */
+  118,  119,  120,  121,  122,  123,  124,  125,  
+  126,   75,   80,   85,   76,   81,   86,   89,       /* 0x40 - 0x4F */
+  79,   84,   83,   90,   95,  100,  105,  106,
+  108,   93,   98,  103,   92,   97,  102,   91,       /* 0x50 - 0x5F */
+  96,  101,   99,  104,   45,  129,    0,    0, 
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0x60 - 0x6F */
+  0,    0,    0,    0,    0,    0,    0,    0,
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0x70 - 0x7F */
+  0,    0,    0,    0,    0,  107,    0,   56,
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0x80 - 0x8F */
+  0,    0,    0,    0,    0,    0,    0,    0,
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0x90 - 0x9F */
+  0,    0,    0,    0,    0,    0,    0,    0,
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0xA0 - 0xAF */
+  0,    0,    0,    0,    0,    0,    0,    0, 
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0xB0 - 0xBF */
+  0,    0,    0,    0,    0,    0,    0,    0, 
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0xC0 - 0xCF */
+  0,    0,    0,    0,    0,    0,    0,    0, 
+  0,    0,    0,    0,    0,    0,    0,    0,       /* 0xD0 - 0xDF */
+  58,   44,   60,  127,   64,   57,   62,  128        /* 0xE0 - 0xE7 */
+};
+
+#ifdef QWERTY_KEYBOARD
+static  const  int8_t  HID_KEYBRD_Key[] = {
+  '\0',  '`',  '1',  '2',  '3',  '4',  '5',  '6',
+  '7',  '8',  '9',  '0',  '-',  '=',  '\0', '\r',
+  '\t',  'q',  'w',  'e',  'r',  't',  'y',  'u', 
+  'i',  'o',  'p',  '[',  ']',  '\\',
+  '\0',  'a',  's',  'd',  'f',  'g',  'h',  'j',  
+  'k',  'l',  ';',  '\'', '\0', '\n',
+  '\0',  '\0', 'z',  'x',  'c',  'v',  'b',  'n', 
+  'm',  ',',  '.',  '/',  '\0', '\0',
+  '\0',  '\0', '\0', ' ',  '\0', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0',  '\0', '\0', '\0', '\0', '\r', '\0', '\0', 
+  '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0',  '\0', '7',  '4',  '1',
+  '\0',  '/',  '8',  '5',  '2',
+  '0',   '*',  '9',  '6',  '3',
+  '.',   '-',  '+',  '\0', '\n', '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0',  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0'
+};
+
+static  const  int8_t  HID_KEYBRD_ShiftKey[] = {
+  '\0', '~',  '!',  '@',  '#',  '$',  '%',  '^',  '&',  '*',  '(',  ')',
+  '_',  '+',  '\0', '\0', '\0', 'Q',  'W',  'E',  'R',  'T',  'Y',  'U', 
+  'I',  'O',  'P',  '{',  '}',  '|',  '\0', 'A',  'S',  'D',  'F',  'G', 
+  'H',  'J',  'K',  'L',  ':',  '"',  '\0', '\n', '\0', '\0', 'Z',  'X',  
+  'C',  'V',  'B',  'N',  'M',  '<',  '>',  '?',  '\0', '\0',  '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0',    '\0', '\0', '\0', '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
+};
+
+#else
+
+static  const  int8_t  HID_KEYBRD_Key[] = {
+  '\0',  '`',  '1',  '2',  '3',  '4',  '5',  '6',  '7',  '8',  '9',  '0',
+  '-',  '=',  '\0', '\r', '\t',  'a',  'z',  'e',  'r',  't',  'y',  'u', 
+  'i',  'o',  'p',  '[',  ']', '\\', '\0',  'q',  's',  'd',  'f',  'g', 
+  'h',  'j',  'k',  'l',  'm',  '\0', '\0', '\n', '\0',  '\0', 'w',  'x', 
+  'c',  'v',  'b',  'n',  ',',  ';',  ':',  '!',  '\0', '\0', '\0',  '\0', 
+  '\0', ' ',  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0',  '\0', '\0', '\0', '\0', '\r', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0', '\0', '\0',  '\0', '7',  '4',  '1','\0',  '/', 
+  '8',  '5',  '2', '0',   '*',  '9',  '6',  '3', '.',   '-',  '+',  '\0', 
+  '\n', '\0', '\0', '\0', '\0', '\0', '\0','\0',  '\0', '\0', '\0', '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
+};
+
+static  const  int8_t  HID_KEYBRD_ShiftKey[] = {
+  '\0', '~',  '!',  '@',  '#',  '$',  '%',  '^',  '&',  '*',  '(',  ')',  '_',
+  '+',  '\0', '\0', '\0', 'A',  'Z',  'E',  'R',  'T',  'Y',  'U',  'I',  'O',
+  'P',  '{',  '}',  '*', '\0', 'Q',  'S',  'D',  'F',  'G',  'H',  'J',  'K', 
+  'L',  'M',  '%',  '\0', '\n', '\0', '\0', 'W',  'X',  'C',  'V',  'B',  'N',
+  '?',  '.',  '/',  '\0',  '\0', '\0','\0', '\0', '\0', '\0', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', 
+  '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
+};
+#endif
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_HID_KEYBD_Private_Functions
+* @{
+*/ 
+
+
+/**
+* @brief  KEYBRD_Init.
+*         Initialize the keyboard function.
+* @param  None
+* @retval None
+*/
+static void  KEYBRD_Init (void)
+{
+  /* Call User Init*/
+  USR_KEYBRD_Init();
+}
+
+/**
+* @brief  KEYBRD_ProcessData.
+*         The function is to decode the pressed keys.
+* @param  pbuf : Pointer to the HID IN report data buffer
+* @retval None
+*/
+
+static void KEYBRD_Decode(uint8_t *pbuf)
+{
+  static  uint8_t   shift;
+  static  uint8_t   keys[KBR_MAX_NBR_PRESSED];
+  static  uint8_t   keys_new[KBR_MAX_NBR_PRESSED];
+  static  uint8_t   keys_last[KBR_MAX_NBR_PRESSED];
+  static  uint8_t   key_newest;
+  static  uint8_t   nbr_keys;
+  static  uint8_t   nbr_keys_new;
+  static  uint8_t   nbr_keys_last;
+  uint8_t   ix;
+  uint8_t   jx;
+  uint8_t   error;
+  uint8_t   output;            
+  
+  nbr_keys      = 0;
+  nbr_keys_new  = 0;
+  nbr_keys_last = 0;
+  key_newest    = 0x00;
+  
+  
+  /* Check if Shift key is pressed */                                                                         
+  if ((pbuf[0] == KBD_LEFT_SHIFT) || (pbuf[0] == KBD_RIGHT_SHIFT)) {
+    shift = TRUE;
+  } else {
+    shift = FALSE;
+  }
+  
+  error = FALSE;
+  
+  /* Check for the value of pressed key */
+  for (ix = 2; ix < 2 + KBR_MAX_NBR_PRESSED; ix++) {                       
+    if ((pbuf[ix] == 0x01) ||
+        (pbuf[ix] == 0x02) ||
+          (pbuf[ix] == 0x03)) {
+            error = TRUE;
+          }
+  }
+  
+  if (error == TRUE) {
+    return;
+  }
+  
+  nbr_keys     = 0;
+  nbr_keys_new = 0;
+  for (ix = 2; ix < 2 + KBR_MAX_NBR_PRESSED; ix++) {
+    if (pbuf[ix] != 0) {
+      keys[nbr_keys] = pbuf[ix];                                       
+      nbr_keys++;
+      for (jx = 0; jx < nbr_keys_last; jx++) {                         
+        if (pbuf[ix] == keys_last[jx]) {
+          break;
+        }
+      }
+      
+      if (jx == nbr_keys_last) {
+        keys_new[nbr_keys_new] = pbuf[ix];
+        nbr_keys_new++;
+      }
+    }
+  }
+  
+  if (nbr_keys_new == 1) {
+    key_newest = keys_new[0];
+    
+    if (shift == TRUE) {
+      output =  HID_KEYBRD_ShiftKey[HID_KEYBRD_Codes[key_newest]];
+    } else {
+      output =  HID_KEYBRD_Key[HID_KEYBRD_Codes[key_newest]];
+    }
+    
+    /* call user process handle */
+    USR_KEYBRD_ProcessData(output);
+  } else {
+    key_newest = 0x00;
+  }
+  
+  
+  nbr_keys_last  = nbr_keys;
+  for (ix = 0; ix < KBR_MAX_NBR_PRESSED; ix++) {
+    keys_last[ix] = keys[ix];
+  }
+}
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/HID/src/usbh_hid_mouse.c
@@ -1,0 +1,161 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hid_mouse.c 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file is the application layer for USB Host HID Mouse Handling.                  
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_hid_mouse.h"
+
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_HID_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_HID_MOUSE 
+  * @brief    This file includes HID Layer Handlers for USB Host HID class.
+  * @{
+  */ 
+
+/** @defgroup USBH_HID_MOUSE_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HID_MOUSE_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HID_MOUSE_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HID_MOUSE_Private_FunctionPrototypes
+  * @{
+  */ 
+static void  MOUSE_Init (void);
+static void  MOUSE_Decode(uint8_t *data);
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HID_MOUSE_Private_Variables
+  * @{
+  */
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+ #if defined   (__CC_ARM) /*!< ARM Compiler */
+  __align(4) 
+ #elif defined ( __ICCARM__ ) /*!< IAR Compiler */
+  #pragma data_alignment=4
+ #elif defined (__GNUC__) /*!< GNU Compiler */
+ #pragma pack(4) 
+ #elif defined  (__TASKING__) /*!< TASKING Compiler */                           
+  __align(4) 
+ #endif /* __CC_ARM */
+#endif
+ 
+ 
+HID_MOUSE_Data_TypeDef HID_MOUSE_Data;
+HID_cb_TypeDef HID_MOUSE_cb = 
+{
+  MOUSE_Init,
+  MOUSE_Decode,
+};
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HID_MOUSE_Private_Functions
+  * @{
+  */ 
+
+/**
+* @brief  MOUSE_Init
+*         Init Mouse State.
+* @param  None
+* @retval None
+*/
+static void  MOUSE_Init ( void)
+{
+ /* Call User Init*/
+ USR_MOUSE_Init();
+}
+            
+/**
+* @brief  MOUSE_Decode
+*         Decode Mouse data
+* @param  data : Pointer to Mouse HID data buffer
+* @retval None
+*/
+static void  MOUSE_Decode(uint8_t *data)
+{
+  HID_MOUSE_Data.button = data[0];
+
+  HID_MOUSE_Data.x      = data[1];
+  HID_MOUSE_Data.y      = data[2];
+  
+  USR_MOUSE_ProcessData(&HID_MOUSE_Data);
+
+}
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+
+/**
+  * @}
+  */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/MSC/inc/usbh_msc_bot.h
@@ -1,0 +1,227 @@
+/**
+  ******************************************************************************
+  * @file    usbh_msc_bot.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbh_msc_bot.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_MSC_BOT_H__
+#define __USBH_MSC_BOT_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_stdreq.h"
+
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_MSC_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_MSC_BOT
+  * @brief This file is the Header file for usbh_msc_core.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_MSC_BOT_Exported_Types
+  * @{
+  */ 
+
+typedef union _USBH_CBW_Block
+{
+  struct __CBW
+  {
+    uint32_t CBWSignature;
+    uint32_t CBWTag;
+    uint32_t CBWTransferLength;
+    uint8_t CBWFlags;
+    uint8_t CBWLUN; 
+    uint8_t CBWLength;
+    uint8_t CBWCB[16];
+}field;
+  uint8_t CBWArray[31];
+}HostCBWPkt_TypeDef;
+
+typedef enum
+{
+  USBH_MSC_BOT_INIT_STATE = 0,                
+  USBH_MSC_BOT_RESET,                
+  USBH_MSC_GET_MAX_LUN,              
+  USBH_MSC_TEST_UNIT_READY,          
+  USBH_MSC_READ_CAPACITY10,
+  USBH_MSC_MODE_SENSE6,
+  USBH_MSC_REQUEST_SENSE,            
+  USBH_MSC_BOT_USB_TRANSFERS,        
+  USBH_MSC_DEFAULT_APPLI_STATE,  
+  USBH_MSC_CTRL_ERROR_STATE,
+  USBH_MSC_UNRECOVERED_STATE
+}
+MSCState;
+
+
+typedef struct _BOTXfer
+{
+uint8_t MSCState;
+uint8_t MSCStateBkp;
+uint8_t MSCStateCurrent;
+uint8_t CmdStateMachine;
+uint8_t BOTState;
+uint8_t BOTStateBkp;
+uint8_t* pRxTxBuff;
+uint16_t DataLength;
+uint8_t BOTXferErrorCount;
+uint8_t BOTXferStatus;
+} USBH_BOTXfer_TypeDef;
+
+
+typedef union _USBH_CSW_Block
+{
+  struct __CSW
+  {
+    uint32_t CSWSignature;
+    uint32_t CSWTag;
+    uint32_t CSWDataResidue;
+    uint8_t  CSWStatus;
+  }field;
+  uint8_t CSWArray[13];
+}HostCSWPkt_TypeDef;
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBH_MSC_BOT_Exported_Defines
+  * @{
+  */ 
+#define USBH_MSC_SEND_CBW                 1
+#define USBH_MSC_SENT_CBW                 2
+#define USBH_MSC_BOT_DATAIN_STATE         3
+#define USBH_MSC_BOT_DATAOUT_STATE        4
+#define USBH_MSC_RECEIVE_CSW_STATE        5
+#define USBH_MSC_DECODE_CSW               6
+#define USBH_MSC_BOT_ERROR_IN             7
+#define USBH_MSC_BOT_ERROR_OUT            8
+
+
+#define USBH_MSC_BOT_CBW_SIGNATURE        0x43425355
+#define USBH_MSC_BOT_CBW_TAG              0x20304050             
+#define USBH_MSC_BOT_CSW_SIGNATURE        0x53425355           
+#define USBH_MSC_CSW_DATA_LENGTH          0x000D
+#define USBH_MSC_BOT_CBW_PACKET_LENGTH    31
+#define USBH_MSC_CSW_LENGTH               13  
+#define USBH_MSC_CSW_MAX_LENGTH           63     
+
+/* CSW Status Definitions */
+#define USBH_MSC_CSW_CMD_PASSED           0x00
+#define USBH_MSC_CSW_CMD_FAILED           0x01
+#define USBH_MSC_CSW_PHASE_ERROR          0x02
+
+#define USBH_MSC_SEND_CSW_DISABLE         0
+#define USBH_MSC_SEND_CSW_ENABLE          1
+
+#define USBH_MSC_DIR_IN                   0
+#define USBH_MSC_DIR_OUT                  1
+#define USBH_MSC_BOTH_DIR                 2
+
+//#define USBH_MSC_PAGE_LENGTH                 0x40
+#define USBH_MSC_PAGE_LENGTH              512
+
+
+#define CBW_CB_LENGTH                     16
+#define CBW_LENGTH                        10
+#define CBW_LENGTH_TEST_UNIT_READY         6
+
+#define USB_REQ_BOT_RESET                0xFF
+#define USB_REQ_GET_MAX_LUN              0xFE
+
+#define MAX_BULK_STALL_COUNT_LIMIT       0x04   /* If STALL is seen on Bulk 
+                                         Endpoint continously, this means 
+                                         that device and Host has phase error
+                                         Hence a Reset is needed */
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_BOT_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_BOT_Exported_Variables
+  * @{
+  */ 
+extern USBH_BOTXfer_TypeDef USBH_MSC_BOTXferParam;
+extern HostCBWPkt_TypeDef USBH_MSC_CBWData;
+extern HostCSWPkt_TypeDef USBH_MSC_CSWData;
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_BOT_Exported_FunctionsPrototype
+  * @{
+  */ 
+void USBH_MSC_HandleBOTXfer(USB_OTG_CORE_HANDLE *pdev,
+                            USBH_HOST *phost);
+uint8_t USBH_MSC_DecodeCSW(USB_OTG_CORE_HANDLE *pdev,
+                           USBH_HOST *phost);
+void USBH_MSC_Init(USB_OTG_CORE_HANDLE *pdev);
+USBH_Status USBH_MSC_BOT_Abort(USB_OTG_CORE_HANDLE *pdev, 
+                               USBH_HOST *phost,
+                               uint8_t direction);
+/**
+  * @}
+  */ 
+
+#endif  //__USBH_MSC_BOT_H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/MSC/inc/usbh_msc_core.h
@@ -1,0 +1,147 @@
+/**
+  ******************************************************************************
+  * @file    usbh_msc_core.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file contains all the prototypes for the usbh_msc_core.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_MSC_CORE_H
+#define __USBH_MSC_CORE_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_core.h"
+#include "usbh_stdreq.h"
+#include "usb_bsp.h"
+#include "usbh_ioreq.h"
+#include "usbh_hcs.h"
+#include "usbh_msc_core.h"
+#include "usbh_msc_scsi.h"
+#include "usbh_msc_bot.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_MSC_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_MSC_CORE
+  * @brief This file is the Header file for usbh_msc_core.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_MSC_CORE_Exported_Types
+  * @{
+  */ 
+
+
+/* Structure for MSC process */
+typedef struct _MSC_Process
+{
+  uint8_t              hc_num_in; 
+  uint8_t              hc_num_out; 
+  uint8_t              MSBulkOutEp;
+  uint8_t              MSBulkInEp;
+  uint16_t             MSBulkInEpSize;
+  uint16_t             MSBulkOutEpSize;
+  uint8_t              buff[USBH_MSC_MPS_SIZE];
+  uint8_t              maxLun;
+}
+MSC_Machine_TypeDef; 
+
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBH_MSC_CORE_Exported_Defines
+  * @{
+  */
+
+#define USB_REQ_BOT_RESET                0xFF
+#define USB_REQ_GET_MAX_LUN              0xFE
+    
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_CORE_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_CORE_Exported_Variables
+  * @{
+  */ 
+extern USBH_Class_cb_TypeDef  USBH_MSC_cb;
+extern MSC_Machine_TypeDef    MSC_Machine;
+extern uint8_t MSCErrorCount;
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_CORE_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+
+
+/**
+  * @}
+  */ 
+
+#endif  /* __USBH_MSC_CORE_H */
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/MSC/inc/usbh_msc_scsi.h
@@ -1,0 +1,169 @@
+/**
+  ******************************************************************************
+  * @file    usbh_msc_scsi.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbh_msc_scsi.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_MSC_SCSI_H__
+#define __USBH_MSC_SCSI_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_stdreq.h"
+
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_MSC_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_MSC_SCSI
+  * @brief This file is the Header file for usbh_msc_scsi.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_MSC_SCSI_Exported_Types
+  * @{
+  */ 
+typedef enum {
+  USBH_MSC_OK = 0,
+  USBH_MSC_FAIL = 1,
+  USBH_MSC_PHASE_ERROR = 2,
+  USBH_MSC_BUSY = 3
+}USBH_MSC_Status_TypeDef;
+
+typedef enum {
+  CMD_UNINITIALIZED_STATE =0,
+  CMD_SEND_STATE,
+  CMD_WAIT_STATUS
+} CMD_STATES_TypeDef;  
+
+
+
+typedef struct __MassStorageParameter
+{
+  uint32_t MSCapacity;
+  uint32_t MSSenseKey; 
+  uint16_t MSPageLength;
+  uint8_t MSBulkOutEp;
+  uint8_t MSBulkInEp;
+  uint8_t MSWriteProtect;
+} MassStorageParameter_TypeDef;
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBH_MSC_SCSI_Exported_Defines
+  * @{
+  */ 
+
+
+
+#define OPCODE_TEST_UNIT_READY            0X00
+#define OPCODE_READ_CAPACITY10            0x25
+#define OPCODE_MODE_SENSE6                0x1A
+#define OPCODE_READ10                     0x28
+#define OPCODE_WRITE10                    0x2A
+#define OPCODE_REQUEST_SENSE              0x03
+
+#define DESC_REQUEST_SENSE                0X00
+#define ALLOCATION_LENGTH_REQUEST_SENSE   63 
+#define XFER_LEN_READ_CAPACITY10           8
+#define XFER_LEN_MODE_SENSE6              63
+
+#define MASK_MODE_SENSE_WRITE_PROTECT     0x80
+#define MODE_SENSE_PAGE_CONTROL_FIELD     0x00
+#define MODE_SENSE_PAGE_CODE              0x3F
+#define DISK_WRITE_PROTECTED              0x01
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_SCSI_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup _Exported_Variables
+  * @{
+  */ 
+extern MassStorageParameter_TypeDef USBH_MSC_Param;
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_SCSI_Exported_FunctionsPrototype
+  * @{
+  */ 
+uint8_t USBH_MSC_TestUnitReady(USB_OTG_CORE_HANDLE *pdev);
+uint8_t USBH_MSC_ReadCapacity10(USB_OTG_CORE_HANDLE *pdev);
+uint8_t USBH_MSC_ModeSense6(USB_OTG_CORE_HANDLE *pdev);
+uint8_t USBH_MSC_RequestSense(USB_OTG_CORE_HANDLE *pdev);
+uint8_t USBH_MSC_Write10(USB_OTG_CORE_HANDLE *pdev,
+                         uint8_t *,
+                         uint32_t ,
+                         uint32_t );
+uint8_t USBH_MSC_Read10(USB_OTG_CORE_HANDLE *pdev,
+                        uint8_t *,
+                        uint32_t ,
+                        uint32_t );
+void USBH_MSC_StateMachine(USB_OTG_CORE_HANDLE *pdev);
+
+/**
+  * @}
+  */ 
+
+#endif  //__USBH_MSC_SCSI_H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/MSC/src/usbh_msc_bot.c
@@ -1,0 +1,632 @@
+/**
+  ******************************************************************************
+  * @file    usbh_msc_bot.c 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file includes the mass storage related functions
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_msc_core.h"
+#include "usbh_msc_scsi.h"
+#include "usbh_msc_bot.h"
+#include "usbh_ioreq.h"
+#include "usbh_def.h"
+#include "usb_hcd_int.h"
+
+
+/** @addtogroup USBH_LIB
+* @{
+*/
+
+/** @addtogroup USBH_CLASS
+* @{
+*/
+
+/** @addtogroup USBH_MSC_CLASS
+* @{
+*/
+
+/** @defgroup USBH_MSC_BOT 
+* @brief    This file includes the mass storage related functions
+* @{
+*/ 
+
+
+/** @defgroup USBH_MSC_BOT_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+/** @defgroup USBH_MSC_BOT_Private_Defines
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+/** @defgroup USBH_MSC_BOT_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_MSC_BOT_Private_Variables
+* @{
+*/ 
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */ 
+__ALIGN_BEGIN HostCBWPkt_TypeDef USBH_MSC_CBWData __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN HostCSWPkt_TypeDef USBH_MSC_CSWData __ALIGN_END ;
+
+
+static uint32_t BOTStallErrorCount;   /* Keeps count of STALL Error Cases*/
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_MSC_BOT_Private_FunctionPrototypes
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_MSC_BOT_Exported_Variables
+* @{
+*/ 
+USBH_BOTXfer_TypeDef USBH_MSC_BOTXferParam; 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_MSC_BOT_Private_Functions
+* @{
+*/ 
+
+
+/**
+* @brief  USBH_MSC_Init 
+*         Initializes the mass storage parameters
+* @param  None
+* @retval None
+*/
+void USBH_MSC_Init(USB_OTG_CORE_HANDLE *pdev )
+{
+  if(HCD_IsDeviceConnected(pdev))
+  {      
+    USBH_MSC_CBWData.field.CBWSignature = USBH_MSC_BOT_CBW_SIGNATURE;
+    USBH_MSC_CBWData.field.CBWTag = USBH_MSC_BOT_CBW_TAG;
+    USBH_MSC_CBWData.field.CBWLUN = 0;  /*Only one LUN is supported*/
+    USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;  
+  }
+  
+  BOTStallErrorCount = 0;
+  MSCErrorCount = 0;
+}
+
+/**
+* @brief  USBH_MSC_HandleBOTXfer 
+*         This function manages the different states of BOT transfer and 
+*         updates the status to upper layer.
+* @param  None
+* @retval None
+* 
+*/
+void USBH_MSC_HandleBOTXfer (USB_OTG_CORE_HANDLE *pdev ,USBH_HOST *phost)
+{
+  uint8_t xferDirection, index;
+  static uint32_t remainingDataLength;
+  static uint8_t *datapointer , *datapointer_prev;
+  static uint8_t error_direction;
+  USBH_Status status;
+  
+  URB_STATE URB_Status = URB_IDLE;
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {  
+    
+    switch (USBH_MSC_BOTXferParam.BOTState)
+    {
+    case USBH_MSC_SEND_CBW:
+      /* send CBW */    
+      USBH_BulkSendData (pdev,
+                         &USBH_MSC_CBWData.CBWArray[0], 
+                         USBH_MSC_BOT_CBW_PACKET_LENGTH , 
+                         MSC_Machine.hc_num_out);
+      
+      USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_SEND_CBW;
+      USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SENT_CBW;
+      
+      break;
+      
+    case USBH_MSC_SENT_CBW:
+      URB_Status = HCD_GetURB_State(pdev , MSC_Machine.hc_num_out);
+      
+      if(URB_Status == URB_DONE)
+      { 
+        BOTStallErrorCount = 0;
+        USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_SENT_CBW; 
+        
+        /* If the CBW Pkt is sent successful, then change the state */
+        xferDirection = (USBH_MSC_CBWData.field.CBWFlags & USB_REQ_DIR_MASK);
+        
+        if ( USBH_MSC_CBWData.field.CBWTransferLength != 0 )
+        {
+          remainingDataLength = USBH_MSC_CBWData.field.CBWTransferLength ;
+          datapointer = USBH_MSC_BOTXferParam.pRxTxBuff;
+          datapointer_prev = datapointer;
+          
+          /* If there is Data Transfer Stage */
+          if (xferDirection == USB_D2H)
+          {
+            /* Data Direction is IN */
+            USBH_MSC_BOTXferParam.BOTState = USBH_MSC_BOT_DATAIN_STATE;
+          }
+          else
+          {
+            /* Data Direction is OUT */
+            USBH_MSC_BOTXferParam.BOTState = USBH_MSC_BOT_DATAOUT_STATE;
+          } 
+        }
+        
+        else
+        {/* If there is NO Data Transfer Stage */
+          USBH_MSC_BOTXferParam.BOTState = USBH_MSC_RECEIVE_CSW_STATE;
+        }
+        
+      }   
+      else if(URB_Status == URB_NOTREADY)
+      {
+        USBH_MSC_BOTXferParam.BOTState  = USBH_MSC_BOTXferParam.BOTStateBkp;    
+      }     
+      else if(URB_Status == URB_STALL)
+      {
+        error_direction = USBH_MSC_DIR_OUT;
+        USBH_MSC_BOTXferParam.BOTState  = USBH_MSC_BOT_ERROR_OUT;
+      }
+      break;
+      
+    case USBH_MSC_BOT_DATAIN_STATE:
+      
+      URB_Status =   HCD_GetURB_State(pdev , MSC_Machine.hc_num_in);
+      /* BOT DATA IN stage */
+      if((URB_Status == URB_DONE) ||(USBH_MSC_BOTXferParam.BOTStateBkp != USBH_MSC_BOT_DATAIN_STATE))
+      {
+        BOTStallErrorCount = 0;
+        USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_BOT_DATAIN_STATE;    
+        
+        if(remainingDataLength > MSC_Machine.MSBulkInEpSize)
+        {
+          USBH_BulkReceiveData (pdev,
+	                        datapointer, 
+			        MSC_Machine.MSBulkInEpSize , 
+			        MSC_Machine.hc_num_in);
+          
+          remainingDataLength -= MSC_Machine.MSBulkInEpSize;
+          datapointer = datapointer + MSC_Machine.MSBulkInEpSize;
+        }
+        else if ( remainingDataLength == 0)
+        {
+          /* If value was 0, and successful transfer, then change the state */
+          USBH_MSC_BOTXferParam.BOTState = USBH_MSC_RECEIVE_CSW_STATE;
+        }
+        else
+        {       
+          USBH_BulkReceiveData (pdev,
+	                        datapointer, 
+			        remainingDataLength , 
+			        MSC_Machine.hc_num_in);
+          
+          remainingDataLength = 0; /* Reset this value and keep in same state */
+        }
+      }
+      else if(URB_Status == URB_STALL)
+      {
+        /* This is Data Stage STALL Condition */
+        
+        error_direction = USBH_MSC_DIR_IN;
+        USBH_MSC_BOTXferParam.BOTState  = USBH_MSC_BOT_ERROR_IN;
+        
+        /* Refer to USB Mass-Storage Class : BOT (www.usb.org) 
+        6.7.2 Host expects to receive data from the device
+        3. On a STALL condition receiving data, then:
+        The host shall accept the data received.
+        The host shall clear the Bulk-In pipe.
+        4. The host shall attempt to receive a CSW.
+        
+        USBH_MSC_BOTXferParam.BOTStateBkp is used to switch to the Original 
+        state after the ClearFeature Command is issued.
+        */
+        USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_RECEIVE_CSW_STATE;
+        
+      }     
+      break;   
+      
+      
+    case USBH_MSC_BOT_DATAOUT_STATE:
+      /* BOT DATA OUT stage */
+      URB_Status = HCD_GetURB_State(pdev , MSC_Machine.hc_num_out);       
+      if(URB_Status == URB_DONE)
+      {
+        BOTStallErrorCount = 0;
+        USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_BOT_DATAOUT_STATE;    
+        if(remainingDataLength > MSC_Machine.MSBulkOutEpSize)
+        {
+          USBH_BulkSendData (pdev,
+                             datapointer, 
+                             MSC_Machine.MSBulkOutEpSize , 
+                             MSC_Machine.hc_num_out);
+          datapointer_prev = datapointer;
+          datapointer = datapointer + MSC_Machine.MSBulkOutEpSize;
+          
+          remainingDataLength = remainingDataLength - MSC_Machine.MSBulkOutEpSize;
+        }
+        else if ( remainingDataLength == 0)
+        {
+          /* If value was 0, and successful transfer, then change the state */
+          USBH_MSC_BOTXferParam.BOTState = USBH_MSC_RECEIVE_CSW_STATE;
+        }
+        else
+        {
+          USBH_BulkSendData (pdev,
+	                     datapointer, 
+			     remainingDataLength , 
+			     MSC_Machine.hc_num_out);
+          
+          remainingDataLength = 0; /* Reset this value and keep in same state */   
+        }      
+      }
+      
+      else if(URB_Status == URB_NOTREADY)
+      {
+        if(datapointer != datapointer_prev)
+        {
+          USBH_BulkSendData (pdev,
+                             (datapointer - MSC_Machine.MSBulkOutEpSize), 
+                             MSC_Machine.MSBulkOutEpSize , 
+                             MSC_Machine.hc_num_out);
+        }
+        else
+        {
+          USBH_BulkSendData (pdev,
+                             datapointer,
+                             MSC_Machine.MSBulkOutEpSize , 
+                             MSC_Machine.hc_num_out);
+        }
+      }
+      
+      else if(URB_Status == URB_STALL)
+      {
+        error_direction = USBH_MSC_DIR_OUT;
+        USBH_MSC_BOTXferParam.BOTState  = USBH_MSC_BOT_ERROR_OUT;
+        
+        /* Refer to USB Mass-Storage Class : BOT (www.usb.org) 
+        6.7.3 Ho - Host expects to send data to the device
+        3. On a STALL condition sending data, then:
+        " The host shall clear the Bulk-Out pipe.
+        4. The host shall attempt to receive a CSW.
+        
+        The Above statement will do the clear the Bulk-Out pipe.
+        The Below statement will help in Getting the CSW.  
+        
+        USBH_MSC_BOTXferParam.BOTStateBkp is used to switch to the Original 
+        state after the ClearFeature Command is issued.
+        */
+        
+        USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_RECEIVE_CSW_STATE;
+        
+      }
+      break;
+      
+    case USBH_MSC_RECEIVE_CSW_STATE:
+      /* BOT CSW stage */     
+        /* NOTE: We cannot reset the BOTStallErrorCount here as it may come from 
+        the clearFeature from previous command */
+        
+        USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_RECEIVE_CSW_STATE;
+        
+        USBH_MSC_BOTXferParam.pRxTxBuff = USBH_MSC_CSWData.CSWArray;
+        USBH_MSC_BOTXferParam.DataLength = USBH_MSC_CSW_MAX_LENGTH;
+        
+        for(index = USBH_MSC_CSW_LENGTH; index != 0; index--)
+        {
+          USBH_MSC_CSWData.CSWArray[index] = 0;
+        }
+        
+        USBH_MSC_CSWData.CSWArray[0] = 0;
+        
+        USBH_BulkReceiveData (pdev,
+                              USBH_MSC_BOTXferParam.pRxTxBuff, 
+                              USBH_MSC_CSW_MAX_LENGTH , 
+                              MSC_Machine.hc_num_in);
+        USBH_MSC_BOTXferParam.BOTState = USBH_MSC_DECODE_CSW;    
+
+      break;
+      
+    case USBH_MSC_DECODE_CSW:
+      URB_Status = HCD_GetURB_State(pdev , MSC_Machine.hc_num_in);
+      /* Decode CSW */
+      if(URB_Status == URB_DONE)
+      {
+        BOTStallErrorCount = 0;
+        USBH_MSC_BOTXferParam.BOTStateBkp = USBH_MSC_RECEIVE_CSW_STATE;
+        
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOTXferParam.MSCStateCurrent ;
+        
+        USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_DecodeCSW(pdev , phost);
+      }
+      else if(URB_Status == URB_STALL)     
+      {
+        error_direction = USBH_MSC_DIR_IN;
+        USBH_MSC_BOTXferParam.BOTState  = USBH_MSC_BOT_ERROR_IN;
+      }
+      break;
+      
+    case USBH_MSC_BOT_ERROR_IN: 
+      status = USBH_MSC_BOT_Abort(pdev, phost, USBH_MSC_DIR_IN);
+      if (status == USBH_OK)
+      {
+        /* Check if the error was due in Both the directions */
+        if (error_direction == USBH_MSC_BOTH_DIR)
+        {/* If Both directions are Needed, Switch to OUT Direction */
+          USBH_MSC_BOTXferParam.BOTState = USBH_MSC_BOT_ERROR_OUT;
+        }
+        else
+        {
+          /* Switch Back to the Original State, In many cases this will be 
+          USBH_MSC_RECEIVE_CSW_STATE state */
+          USBH_MSC_BOTXferParam.BOTState = USBH_MSC_BOTXferParam.BOTStateBkp;
+        }
+      }
+      else if (status == USBH_UNRECOVERED_ERROR)
+      {
+        /* This means that there is a STALL Error limit, Do Reset Recovery */
+        USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_PHASE_ERROR;
+      }
+      break;
+      
+    case USBH_MSC_BOT_ERROR_OUT: 
+      status = USBH_MSC_BOT_Abort(pdev, phost, USBH_MSC_DIR_OUT);
+      if ( status == USBH_OK)
+      { /* Switch Back to the Original State */
+        USBH_MSC_BOTXferParam.BOTState = USBH_MSC_BOTXferParam.BOTStateBkp;        
+      }
+      else if (status == USBH_UNRECOVERED_ERROR)
+      {
+        /* This means that there is a STALL Error limit, Do Reset Recovery */
+        USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_PHASE_ERROR;
+      }
+      break;
+      
+    default:      
+      break;
+    }
+  }
+}
+
+/**
+* @brief  USBH_MSC_BOT_Abort 
+*         This function manages the different Error handling for STALL
+* @param  direction : IN / OUT 
+* @retval None
+*/
+USBH_Status USBH_MSC_BOT_Abort(USB_OTG_CORE_HANDLE *pdev, 
+                               USBH_HOST *phost,
+                               uint8_t direction)
+{
+  USBH_Status status;
+  
+  status = USBH_BUSY;
+  
+  switch (direction)
+  {
+  case USBH_MSC_DIR_IN :
+    /* send ClrFeture on Bulk IN endpoint */
+    status = USBH_ClrFeature(pdev,
+                             phost,
+                             MSC_Machine.MSBulkInEp,
+                             MSC_Machine.hc_num_in);
+    
+    break;
+    
+  case USBH_MSC_DIR_OUT :
+    /*send ClrFeature on Bulk OUT endpoint */
+    status = USBH_ClrFeature(pdev, 
+                             phost,
+                             MSC_Machine.MSBulkOutEp,
+                             MSC_Machine.hc_num_out);
+    break;
+    
+  default:
+    break;
+  }
+  
+  BOTStallErrorCount++; /* Check Continous Number of times, STALL has Occured */ 
+  if (BOTStallErrorCount > MAX_BULK_STALL_COUNT_LIMIT )
+  {
+    status = USBH_UNRECOVERED_ERROR;
+  }
+  
+  return status;
+}
+
+/**
+* @brief  USBH_MSC_DecodeCSW
+*         This function decodes the CSW received by the device and updates the
+*         same to upper layer.
+* @param  None
+* @retval On success USBH_MSC_OK, on failure USBH_MSC_FAIL
+* @notes
+*     Refer to USB Mass-Storage Class : BOT (www.usb.org)
+*    6.3.1 Valid CSW Conditions :
+*     The host shall consider the CSW valid when:
+*     1. dCSWSignature is equal to 53425355h
+*     2. the CSW is 13 (Dh) bytes in length,
+*     3. dCSWTag matches the dCBWTag from the corresponding CBW.
+*/
+
+uint8_t USBH_MSC_DecodeCSW(USB_OTG_CORE_HANDLE *pdev , USBH_HOST *phost)
+{
+  uint8_t status;
+  uint32_t dataXferCount = 0;
+  status = USBH_MSC_FAIL;
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {
+    /*Checking if the transfer length is diffrent than 13*/
+    dataXferCount = HCD_GetXferCnt(pdev, MSC_Machine.hc_num_in); 
+    
+    if(dataXferCount != USBH_MSC_CSW_LENGTH)
+    {
+      /*(4) Hi > Dn (Host expects to receive data from the device,
+      Device intends to transfer no data)
+      (5) Hi > Di (Host expects to receive data from the device,
+      Device intends to send data to the host)
+      (9) Ho > Dn (Host expects to send data to the device,
+      Device intends to transfer no data)
+      (11) Ho > Do  (Host expects to send data to the device,
+      Device intends to receive data from the host)*/
+      
+      
+      status = USBH_MSC_PHASE_ERROR;
+    }
+    else
+    { /* CSW length is Correct */
+      
+      /* Check validity of the CSW Signature and CSWStatus */
+      if(USBH_MSC_CSWData.field.CSWSignature == USBH_MSC_BOT_CSW_SIGNATURE)
+      {/* Check Condition 1. dCSWSignature is equal to 53425355h */
+        
+        if(USBH_MSC_CSWData.field.CSWTag == USBH_MSC_CBWData.field.CBWTag)
+        {
+          /* Check Condition 3. dCSWTag matches the dCBWTag from the 
+          corresponding CBW */
+          
+          if(USBH_MSC_CSWData.field.CSWStatus == USBH_MSC_OK) 
+          {
+            /* Refer to USB Mass-Storage Class : BOT (www.usb.org) 
+            
+            Hn Host expects no data transfers
+            Hi Host expects to receive data from the device
+            Ho Host expects to send data to the device
+            
+            Dn Device intends to transfer no data
+            Di Device intends to send data to the host
+            Do Device intends to receive data from the host
+            
+            Section 6.7 
+            (1) Hn = Dn (Host expects no data transfers,
+            Device intends to transfer no data)
+            (6) Hi = Di (Host expects to receive data from the device,
+            Device intends to send data to the host)
+            (12) Ho = Do (Host expects to send data to the device, 
+            Device intends to receive data from the host)
+            
+            */
+            
+            status = USBH_MSC_OK;
+          }
+          else if(USBH_MSC_CSWData.field.CSWStatus == USBH_MSC_FAIL)
+          {
+            status = USBH_MSC_FAIL;
+          }
+          
+          else if(USBH_MSC_CSWData.field.CSWStatus == USBH_MSC_PHASE_ERROR)
+          { 
+            /* Refer to USB Mass-Storage Class : BOT (www.usb.org) 
+            Section 6.7 
+            (2) Hn < Di ( Host expects no data transfers, 
+            Device intends to send data to the host)
+            (3) Hn < Do ( Host expects no data transfers, 
+            Device intends to receive data from the host)
+            (7) Hi < Di ( Host expects to receive data from the device, 
+            Device intends to send data to the host)
+            (8) Hi <> Do ( Host expects to receive data from the device, 
+            Device intends to receive data from the host)
+            (10) Ho <> Di (Host expects to send data to the device,
+            Di Device intends to send data to the host)
+            (13) Ho < Do (Host expects to send data to the device, 
+            Device intends to receive data from the host)
+            */
+            
+            status = USBH_MSC_PHASE_ERROR;
+          }
+        } /* CSW Tag Matching is Checked  */
+      } /* CSW Signature Correct Checking */
+      else
+      {
+        /* If the CSW Signature is not valid, We sall return the Phase Error to
+        Upper Layers for Reset Recovery */
+        
+        status = USBH_MSC_PHASE_ERROR;
+      }
+    } /* CSW Length Check*/
+  }
+  
+  USBH_MSC_BOTXferParam.BOTXferStatus  = status;
+  return status;
+}
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/MSC/src/usbh_msc_core.c
@@ -1,0 +1,566 @@
+/**
+  ******************************************************************************
+  * @file    usbh_msc_core.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file implements the MSC class driver functions
+  *          ===================================================================      
+  *                                MSC Class  Description
+  *          =================================================================== 
+  *           This module manages the MSC class V1.0 following the "Universal 
+  *           Serial Bus Mass Storage Class (MSC) Bulk-Only Transport (BOT) Version 1.0
+  *           Sep. 31, 1999".
+  *           This driver implements the following aspects of the specification:
+  *             - Bulk-Only Transport protocol
+  *             - Subclass : SCSI transparent command set (ref. SCSI Primary Commands - 3 (SPC-3))
+  *      
+  *  @endverbatim
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "usbh_msc_core.h"
+#include "usbh_msc_scsi.h"
+#include "usbh_msc_bot.h"
+#include "usbh_core.h"
+
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_MSC_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_MSC_CORE 
+  * @brief    This file includes the mass storage related functions
+  * @{
+  */ 
+
+
+/** @defgroup USBH_MSC_CORE_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_CORE_Private_Defines
+  * @{
+  */ 
+#define USBH_MSC_ERROR_RETRY_LIMIT 10
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_CORE_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_CORE_Private_Variables
+  * @{
+  */ 
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN MSC_Machine_TypeDef         MSC_Machine __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN USB_Setup_TypeDef           MSC_Setup __ALIGN_END ;
+uint8_t MSCErrorCount = 0;
+
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_CORE_Private_FunctionPrototypes
+  * @{
+  */ 
+
+static USBH_Status USBH_MSC_InterfaceInit  (USB_OTG_CORE_HANDLE *pdev , 
+                                            void *phost);
+
+static void USBH_MSC_InterfaceDeInit  (USB_OTG_CORE_HANDLE *pdev , 
+                                       void *phost);
+
+static USBH_Status USBH_MSC_Handle(USB_OTG_CORE_HANDLE *pdev , 
+                            void *phost);
+
+static USBH_Status USBH_MSC_ClassRequest(USB_OTG_CORE_HANDLE *pdev , 
+                                         void *phost);
+
+static USBH_Status USBH_MSC_BOTReset(USB_OTG_CORE_HANDLE *pdev,
+                              USBH_HOST *phost);
+static USBH_Status USBH_MSC_GETMaxLUN(USB_OTG_CORE_HANDLE *pdev,
+                               USBH_HOST *phost);
+
+
+USBH_Class_cb_TypeDef  USBH_MSC_cb = 
+{
+  USBH_MSC_InterfaceInit,
+  USBH_MSC_InterfaceDeInit,
+  USBH_MSC_ClassRequest,
+  USBH_MSC_Handle,
+};
+
+void USBH_MSC_ErrorHandle(uint8_t status);
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_CORE_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_CORE_Private_Functions
+  * @{
+  */ 
+
+
+/**
+  * @brief  USBH_MSC_InterfaceInit 
+  *         Interface initialization for MSC class.
+  * @param  pdev: Selected device
+  * @param  hdev: Selected device property
+  * @retval USBH_Status : Status of class request handled.
+  */
+static USBH_Status USBH_MSC_InterfaceInit ( USB_OTG_CORE_HANDLE *pdev, 
+                                        void *phost)
+{	 
+  USBH_HOST *pphost = phost;
+  
+  if((pphost->device_prop.Itf_Desc[0].bInterfaceClass == MSC_CLASS) && \
+     (pphost->device_prop.Itf_Desc[0].bInterfaceProtocol == MSC_PROTOCOL))
+  {
+    if(pphost->device_prop.Ep_Desc[0][0].bEndpointAddress & 0x80)
+    {
+      MSC_Machine.MSBulkInEp = (pphost->device_prop.Ep_Desc[0][0].bEndpointAddress);
+      MSC_Machine.MSBulkInEpSize  = pphost->device_prop.Ep_Desc[0][0].wMaxPacketSize;
+    }
+    else
+    {
+      MSC_Machine.MSBulkOutEp = (pphost->device_prop.Ep_Desc[0][0].bEndpointAddress);
+      MSC_Machine.MSBulkOutEpSize  = pphost->device_prop.Ep_Desc[0] [0].wMaxPacketSize;      
+    }
+    
+    if(pphost->device_prop.Ep_Desc[0][1].bEndpointAddress & 0x80)
+    {
+      MSC_Machine.MSBulkInEp = (pphost->device_prop.Ep_Desc[0][1].bEndpointAddress);
+      MSC_Machine.MSBulkInEpSize  = pphost->device_prop.Ep_Desc[0][1].wMaxPacketSize;      
+    }
+    else
+    {
+      MSC_Machine.MSBulkOutEp = (pphost->device_prop.Ep_Desc[0][1].bEndpointAddress);
+      MSC_Machine.MSBulkOutEpSize  = pphost->device_prop.Ep_Desc[0][1].wMaxPacketSize;      
+    }
+    
+    MSC_Machine.hc_num_out = USBH_Alloc_Channel(pdev, 
+                                                MSC_Machine.MSBulkOutEp);
+    MSC_Machine.hc_num_in = USBH_Alloc_Channel(pdev,
+                                                MSC_Machine.MSBulkInEp);  
+    
+    /* Open the new channels */
+    USBH_Open_Channel  (pdev,
+                        MSC_Machine.hc_num_out,
+                        pphost->device_prop.address,
+                        pphost->device_prop.speed,
+                        EP_TYPE_BULK,
+                        MSC_Machine.MSBulkOutEpSize);  
+    
+    USBH_Open_Channel  (pdev,
+                        MSC_Machine.hc_num_in,
+                        pphost->device_prop.address,
+                        pphost->device_prop.speed,
+                        EP_TYPE_BULK,
+                        MSC_Machine.MSBulkInEpSize);    
+    
+  }
+  
+  else
+  {
+    pphost->usr_cb->DeviceNotSupported(); 
+  }
+  
+  return USBH_OK ;
+ 
+}
+
+
+/**
+  * @brief  USBH_MSC_InterfaceDeInit 
+  *         De-Initialize interface by freeing host channels allocated to interface
+  * @param  pdev: Selected device
+  * @param  hdev: Selected device property
+  * @retval None
+  */
+void USBH_MSC_InterfaceDeInit ( USB_OTG_CORE_HANDLE *pdev,
+                                void *phost)
+{	
+  if ( MSC_Machine.hc_num_out)
+  {
+    USB_OTG_HC_Halt(pdev, MSC_Machine.hc_num_out);
+    USBH_Free_Channel  (pdev, MSC_Machine.hc_num_out);
+    MSC_Machine.hc_num_out = 0;     /* Reset the Channel as Free */
+  }
+   
+  if ( MSC_Machine.hc_num_in)
+  {
+    USB_OTG_HC_Halt(pdev, MSC_Machine.hc_num_in);
+    USBH_Free_Channel  (pdev, MSC_Machine.hc_num_in);
+    MSC_Machine.hc_num_in = 0;     /* Reset the Channel as Free */
+  } 
+}
+
+/**
+  * @brief  USBH_MSC_ClassRequest 
+  *         This function will only initialize the MSC state machine
+  * @param  pdev: Selected device
+  * @param  hdev: Selected device property
+  * @retval USBH_Status : Status of class request handled.
+  */
+
+static USBH_Status USBH_MSC_ClassRequest(USB_OTG_CORE_HANDLE *pdev , 
+                                        void *phost)
+{   
+  
+  USBH_Status status = USBH_OK ;
+  USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_INIT_STATE;
+  
+  return status; 
+}
+
+
+/**
+  * @brief  USBH_MSC_Handle 
+  *         MSC state machine handler 
+  * @param  pdev: Selected device
+  * @param  hdev: Selected device property
+  * @retval USBH_Status
+  */
+
+static USBH_Status USBH_MSC_Handle(USB_OTG_CORE_HANDLE *pdev , 
+                                   void   *phost)
+{
+  USBH_HOST *pphost = phost;
+    
+  USBH_Status status = USBH_BUSY;
+  uint8_t mscStatus = USBH_MSC_BUSY;
+  uint8_t appliStatus = 0;
+  
+  static uint8_t maxLunExceed = FALSE;
+  
+    
+  if(HCD_IsDeviceConnected(pdev))
+  {   
+    switch(USBH_MSC_BOTXferParam.MSCState)
+    {
+    case USBH_MSC_BOT_INIT_STATE:
+      USBH_MSC_Init(pdev);
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_RESET;  
+      break;
+      
+    case USBH_MSC_BOT_RESET:   
+      /* Issue BOT RESET request */
+      status = USBH_MSC_BOTReset(pdev, phost);
+      if(status == USBH_OK )
+      {
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_GET_MAX_LUN;
+      }
+      
+      if(status == USBH_NOT_SUPPORTED )
+      {
+       /* If the Command has failed, then we need to move to Next State, after
+        STALL condition is cleared by Control-Transfer */
+        USBH_MSC_BOTXferParam.MSCStateBkp = USBH_MSC_GET_MAX_LUN; 
+
+        /* a Clear Feature should be issued here */
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_CTRL_ERROR_STATE;
+      }  
+      break;
+      
+    case USBH_MSC_GET_MAX_LUN:
+      /* Issue GetMaxLUN request */
+      status = USBH_MSC_GETMaxLUN(pdev, phost);
+      
+      if(status == USBH_OK )
+      {
+        MSC_Machine.maxLun = *(MSC_Machine.buff) ;
+        
+        /* If device has more that one logical unit then it is not supported */
+        if((MSC_Machine.maxLun > 0) && (maxLunExceed == FALSE))
+        {
+          maxLunExceed = TRUE;
+          pphost->usr_cb->DeviceNotSupported();
+          
+          break;
+        }
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_TEST_UNIT_READY;
+      }
+      
+      if(status == USBH_NOT_SUPPORTED )
+      {
+               /* If the Command has failed, then we need to move to Next State, after
+        STALL condition is cleared by Control-Transfer */
+        USBH_MSC_BOTXferParam.MSCStateBkp = USBH_MSC_TEST_UNIT_READY; 
+        
+        /* a Clear Feature should be issued here */
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_CTRL_ERROR_STATE;
+      }    
+      break;
+      
+    case USBH_MSC_CTRL_ERROR_STATE:
+      /* Issue Clearfeature request */
+      status = USBH_ClrFeature(pdev,
+                               phost,
+                               0x00,
+                               pphost->Control.hc_num_out);
+      if(status == USBH_OK )
+      {
+        /* If GetMaxLun Request not support, assume Single LUN configuration */
+        MSC_Machine.maxLun = 0;  
+        
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOTXferParam.MSCStateBkp;     
+      }
+      break;  
+      
+    case USBH_MSC_TEST_UNIT_READY:
+      /* Issue SCSI command TestUnitReady */ 
+      mscStatus = USBH_MSC_TestUnitReady(pdev);
+      
+      if(mscStatus == USBH_MSC_OK )
+      {
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_READ_CAPACITY10;
+        MSCErrorCount = 0;
+        status = USBH_OK;
+      }
+      else
+      {
+        USBH_MSC_ErrorHandle(mscStatus);
+      } 
+      break;
+      
+    case USBH_MSC_READ_CAPACITY10:
+      /* Issue READ_CAPACITY10 SCSI command */
+      mscStatus = USBH_MSC_ReadCapacity10(pdev);
+      if(mscStatus == USBH_MSC_OK )
+      {
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_MODE_SENSE6;
+        MSCErrorCount = 0;
+        status = USBH_OK;
+      }
+      else
+      {
+        USBH_MSC_ErrorHandle(mscStatus);
+      }
+      break;
+
+    case USBH_MSC_MODE_SENSE6:
+      /* Issue ModeSense6 SCSI command for detecting if device is write-protected */
+      mscStatus = USBH_MSC_ModeSense6(pdev);
+      if(mscStatus == USBH_MSC_OK )
+      {
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_DEFAULT_APPLI_STATE;
+        MSCErrorCount = 0;
+        status = USBH_OK;
+      }
+      else
+      {
+        USBH_MSC_ErrorHandle(mscStatus);
+      }
+      break;
+      
+    case USBH_MSC_REQUEST_SENSE:
+      /* Issue RequestSense SCSI command for retreiving error code */
+      mscStatus = USBH_MSC_RequestSense(pdev);
+      if(mscStatus == USBH_MSC_OK )
+      {
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOTXferParam.MSCStateBkp;
+        status = USBH_OK;
+      }
+      else
+      {
+        USBH_MSC_ErrorHandle(mscStatus);
+      }  
+      break;
+      
+    case USBH_MSC_BOT_USB_TRANSFERS:
+      /* Process the BOT state machine */
+      USBH_MSC_HandleBOTXfer(pdev , phost);
+      break;
+    
+    case USBH_MSC_DEFAULT_APPLI_STATE:
+      /* Process Application callback for MSC */
+      appliStatus = pphost->usr_cb->UserApplication();
+      if(appliStatus == 0)
+      {
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_DEFAULT_APPLI_STATE;
+      }
+      else if (appliStatus == 1) 
+      {
+        /* De-init requested from application layer */
+        status =  USBH_APPLY_DEINIT;
+      }
+      break;
+      
+    case USBH_MSC_UNRECOVERED_STATE:
+      
+      status = USBH_UNRECOVERED_ERROR;
+      
+      break;
+      
+    default:
+      break; 
+      
+    }
+  }
+   return status;
+}
+
+
+
+/**
+  * @brief  USBH_MSC_BOTReset
+  *         This request is used to reset the mass storage device and its 
+  *         associated interface. This class-specific request shall ready the 
+  *         device for the next CBW from the host.
+  * @param  pdev: Selected device
+  * @retval USBH_Status : Status of class request handled.
+  */
+static USBH_Status USBH_MSC_BOTReset(USB_OTG_CORE_HANDLE *pdev,
+                              USBH_HOST *phost)
+{
+  
+  phost->Control.setup.b.bmRequestType = USB_H2D | USB_REQ_TYPE_CLASS | \
+                              USB_REQ_RECIPIENT_INTERFACE;
+  
+  phost->Control.setup.b.bRequest = USB_REQ_BOT_RESET;
+  phost->Control.setup.b.wValue.w = 0;
+  phost->Control.setup.b.wIndex.w = 0;
+  phost->Control.setup.b.wLength.w = 0;           
+  
+  return USBH_CtlReq(pdev, phost, 0 , 0 ); 
+}
+
+
+/**
+  * @brief  USBH_MSC_GETMaxLUN
+  *         This request is used to reset the mass storage device and its 
+  *         associated interface. This class-specific request shall ready the 
+  *         device for the next CBW from the host.
+  * @param  pdev: Selected device
+  * @retval USBH_Status : USB ctl xfer status
+  */
+static USBH_Status USBH_MSC_GETMaxLUN(USB_OTG_CORE_HANDLE *pdev , USBH_HOST *phost)
+{
+  phost->Control.setup.b.bmRequestType = USB_D2H | USB_REQ_TYPE_CLASS | \
+                              USB_REQ_RECIPIENT_INTERFACE;
+  
+  phost->Control.setup.b.bRequest = USB_REQ_GET_MAX_LUN;
+  phost->Control.setup.b.wValue.w = 0;
+  phost->Control.setup.b.wIndex.w = 0;
+  phost->Control.setup.b.wLength.w = 1;           
+  
+  return USBH_CtlReq(pdev, phost, MSC_Machine.buff , 1 ); 
+}
+
+/**
+  * @brief  USBH_MSC_ErrorHandle 
+  *         The function is for handling errors occuring during the MSC
+  *         state machine   
+  * @param  status
+  * @retval None
+  */
+
+void USBH_MSC_ErrorHandle(uint8_t status)
+{  
+    if(status == USBH_MSC_FAIL)
+    { 
+      MSCErrorCount++;
+      if(MSCErrorCount < USBH_MSC_ERROR_RETRY_LIMIT)
+      { /* Try MSC level error recovery, Issue the request Sense to get 
+        Drive error reason  */
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_REQUEST_SENSE;
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+      }
+      else
+      {
+        /* Error trials exceeded the limit, go to unrecovered state */
+        USBH_MSC_BOTXferParam.MSCState = USBH_MSC_UNRECOVERED_STATE;
+      }
+    } 
+    else if(status == USBH_MSC_PHASE_ERROR)
+    {
+      /* Phase error, Go to Unrecoovered state */
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_UNRECOVERED_STATE;
+    }
+    else if(status == USBH_MSC_BUSY)
+    {
+      /*No change in state*/
+    }
+}
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/MSC/src/usbh_msc_fatfs.cx
@@ -1,0 +1,186 @@
+
+#include "usb_conf.h"
+#include "diskio.h"
+#include "usbh_msc_core.h"
+/*--------------------------------------------------------------------------
+
+Module Private Functions and Variables
+
+---------------------------------------------------------------------------*/
+
+static volatile DSTATUS Stat = STA_NOINIT;	/* Disk status */
+
+extern USB_OTG_CORE_HANDLE          USB_OTG_Core;
+extern USBH_HOST                     USB_Host;
+
+/*-----------------------------------------------------------------------*/
+/* Initialize Disk Drive                                                 */
+/*-----------------------------------------------------------------------*/
+
+DSTATUS disk_initialize (
+                         BYTE drv		/* Physical drive number (0) */
+                           )
+{
+  
+  if(HCD_IsDeviceConnected(&USB_OTG_Core))
+  {  
+    Stat &= ~STA_NOINIT;
+  }
+  
+  return Stat;
+  
+  
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Get Disk Status                                                       */
+/*-----------------------------------------------------------------------*/
+
+DSTATUS disk_status (
+                     BYTE drv		/* Physical drive number (0) */
+                       )
+{
+  if (drv) return STA_NOINIT;		/* Supports only single drive */
+  return Stat;
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Read Sector(s)                                                        */
+/*-----------------------------------------------------------------------*/
+
+DRESULT disk_read (
+                   BYTE drv,			/* Physical drive number (0) */
+                   BYTE *buff,			/* Pointer to the data buffer to store read data */
+                   DWORD sector,		/* Start sector number (LBA) */
+                   BYTE count			/* Sector count (1..255) */
+                     )
+{
+  BYTE status = USBH_MSC_OK;
+  
+  if (drv || !count) return RES_PARERR;
+  if (Stat & STA_NOINIT) return RES_NOTRDY;
+  
+  
+  if(HCD_IsDeviceConnected(&USB_OTG_Core))
+  {  
+    
+    do
+    {
+      status = USBH_MSC_Read10(&USB_OTG_Core, buff,sector,512 * count);
+      USBH_MSC_HandleBOTXfer(&USB_OTG_Core ,&USB_Host);
+      
+      if(!HCD_IsDeviceConnected(&USB_OTG_Core))
+      { 
+        return RES_ERROR;
+      }      
+    }
+    while(status == USBH_MSC_BUSY );
+  }
+  
+  if(status == USBH_MSC_OK)
+    return RES_OK;
+  return RES_ERROR;
+  
+}
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Write Sector(s)                                                       */
+/*-----------------------------------------------------------------------*/
+
+#if _READONLY == 0
+DRESULT disk_write (
+                    BYTE drv,			/* Physical drive number (0) */
+                    const BYTE *buff,	/* Pointer to the data to be written */
+                    DWORD sector,		/* Start sector number (LBA) */
+                    BYTE count			/* Sector count (1..255) */
+                      )
+{
+  BYTE status = USBH_MSC_OK;
+  if (drv || !count) return RES_PARERR;
+  if (Stat & STA_NOINIT) return RES_NOTRDY;
+  if (Stat & STA_PROTECT) return RES_WRPRT;
+  
+  
+  if(HCD_IsDeviceConnected(&USB_OTG_Core))
+  {  
+    do
+    {
+      status = USBH_MSC_Write10(&USB_OTG_Core,(BYTE*)buff,sector,512 * count);
+      USBH_MSC_HandleBOTXfer(&USB_OTG_Core, &USB_Host);
+      
+      if(!HCD_IsDeviceConnected(&USB_OTG_Core))
+      { 
+        return RES_ERROR;
+      }
+    }
+    
+    while(status == USBH_MSC_BUSY );
+    
+  }
+  
+  if(status == USBH_MSC_OK)
+    return RES_OK;
+  return RES_ERROR;
+}
+#endif /* _READONLY == 0 */
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Miscellaneous Functions                                               */
+/*-----------------------------------------------------------------------*/
+
+#if _USE_IOCTL != 0
+DRESULT disk_ioctl (
+                    BYTE drv,		/* Physical drive number (0) */
+                    BYTE ctrl,		/* Control code */
+                    void *buff		/* Buffer to send/receive control data */
+                      )
+{
+  DRESULT res = RES_OK;
+  
+  if (drv) return RES_PARERR;
+  
+  res = RES_ERROR;
+  
+  if (Stat & STA_NOINIT) return RES_NOTRDY;
+  
+  switch (ctrl) {
+  case CTRL_SYNC :		/* Make sure that no pending write process */
+    
+    res = RES_OK;
+    break;
+    
+  case GET_SECTOR_COUNT :	/* Get number of sectors on the disk (DWORD) */
+    
+    *(DWORD*)buff = (DWORD) USBH_MSC_Param.MSCapacity;
+    res = RES_OK;
+    break;
+    
+  case GET_SECTOR_SIZE :	/* Get R/W sector size (WORD) */
+    *(WORD*)buff = 512;
+    res = RES_OK;
+    break;
+    
+  case GET_BLOCK_SIZE :	/* Get erase block size in unit of sector (DWORD) */
+    
+    *(DWORD*)buff = 512;
+    
+    break;
+    
+    
+  default:
+    res = RES_PARERR;
+  }
+  
+  
+  
+  return res;
+}
+#endif /* _USE_IOCTL != 0 */
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Class/MSC/src/usbh_msc_scsi.c
@@ -1,0 +1,680 @@
+/**
+  ******************************************************************************
+  * @file    usbh_msc_scsi.c 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file implements the SCSI commands
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_msc_core.h"
+#include "usbh_msc_scsi.h"
+#include "usbh_msc_bot.h"
+#include "usbh_ioreq.h"
+#include "usbh_def.h"
+
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_CLASS
+  * @{
+  */
+
+/** @addtogroup USBH_MSC_CLASS
+  * @{
+  */
+  
+/** @defgroup USBH_MSC_SCSI 
+  * @brief    This file includes the mass storage related functions
+  * @{
+  */ 
+
+
+/** @defgroup USBH_MSC_SCSI_Private_TypesDefinitions
+  * @{
+  */ 
+
+MassStorageParameter_TypeDef USBH_MSC_Param; 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_SCSI_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_MSC_SCSI_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_SCSI_Private_Variables
+  * @{
+  */ 
+  
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t USBH_DataInBuffer[512] __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t USBH_DataOutBuffer[512] __ALIGN_END ;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_SCSI_Private_FunctionPrototypes
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_SCSI_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_MSC_SCSI_Private_Functions
+  * @{
+  */ 
+
+
+
+
+/**
+  * @brief  USBH_MSC_TestUnitReady 
+  *         Issues 'Test unit ready' command to the device. Once the response  
+  *         received, it updates the status to upper layer.
+  * @param  None
+  * @retval Status
+  */
+uint8_t USBH_MSC_TestUnitReady (USB_OTG_CORE_HANDLE *pdev)
+{
+  uint8_t index;
+  USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {  
+    switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+    {
+    case CMD_SEND_STATE:  
+      /*Prepare the CBW and relevent field*/
+      USBH_MSC_CBWData.field.CBWTransferLength = 0;       /* No Data Transfer */
+      USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_OUT;
+      USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH_TEST_UNIT_READY;
+      USBH_MSC_BOTXferParam.pRxTxBuff = USBH_MSC_CSWData.CSWArray;
+      USBH_MSC_BOTXferParam.DataLength = USBH_MSC_CSW_MAX_LENGTH;
+      USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_TEST_UNIT_READY;
+      
+      for(index = CBW_CB_LENGTH; index != 0; index--)
+      {
+        USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+      }
+      
+      USBH_MSC_CBWData.field.CBWCB[0]  = OPCODE_TEST_UNIT_READY; 
+      USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+      /* Start the transfer, then let the state 
+      machine magage the other transactions */
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+      USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+      USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+      
+      status = USBH_MSC_BUSY; 
+      break;
+      
+    case CMD_WAIT_STATUS: 
+      if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+      { 
+        /* Commands successfully sent and Response Received  */       
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+       
+        status = USBH_MSC_OK;      
+      }
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_FAIL;
+      }
+      
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_PHASE_ERROR;    
+      }  
+      break;
+      
+    default:
+      break;
+    }
+  }
+  return status;
+}
+
+
+/**
+  * @brief  USBH_MSC_ReadCapacity10  
+  *         Issue the read capacity command to the device. Once the response 
+  *         received, it updates the status to upper layer
+  * @param  None
+  * @retval Status
+  */
+uint8_t USBH_MSC_ReadCapacity10(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint8_t index;
+  USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {  
+    switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+    {
+    case CMD_SEND_STATE:
+      /*Prepare the CBW and relevent field*/
+      USBH_MSC_CBWData.field.CBWTransferLength = XFER_LEN_READ_CAPACITY10;
+      USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+      USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+      
+      USBH_MSC_BOTXferParam.pRxTxBuff = USBH_DataInBuffer;
+      USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_READ_CAPACITY10;
+      
+      for(index = CBW_CB_LENGTH; index != 0; index--)
+      {
+        USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+      }    
+      
+      USBH_MSC_CBWData.field.CBWCB[0]  = OPCODE_READ_CAPACITY10; 
+      USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+      
+      /* Start the transfer, then let the state machine manage the other 
+                                                                transactions */
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+      USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+      USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+      
+      status = USBH_MSC_BUSY;
+      break;
+      
+    case CMD_WAIT_STATUS:
+      if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+      {
+        /*assign the capacity*/
+        (((uint8_t*)&USBH_MSC_Param.MSCapacity )[3]) = USBH_DataInBuffer[0];
+        (((uint8_t*)&USBH_MSC_Param.MSCapacity )[2]) = USBH_DataInBuffer[1];
+        (((uint8_t*)&USBH_MSC_Param.MSCapacity )[1]) = USBH_DataInBuffer[2];
+        (((uint8_t*)&USBH_MSC_Param.MSCapacity )[0]) = USBH_DataInBuffer[3];
+        
+        /*assign the page length*/
+        (((uint8_t*)&USBH_MSC_Param.MSPageLength )[1]) = USBH_DataInBuffer[6];
+        (((uint8_t*)&USBH_MSC_Param.MSPageLength )[0]) = USBH_DataInBuffer[7];
+        
+        /* Commands successfully sent and Response Received  */       
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_OK;      
+      }
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_FAIL;
+      }  
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_PHASE_ERROR;    
+      } 
+      else
+      {
+        /* Wait for the Commands to get Completed */
+        /* NO Change in state Machine */
+      }
+      break;
+      
+    default:
+      break;
+    }
+  }
+  return status;
+}
+
+
+/**
+  * @brief  USBH_MSC_ModeSense6  
+  *         Issue the Mode Sense6 Command to the device. This function is used 
+  *          for reading the WriteProtect Status of the Mass-Storage device. 
+  * @param  None
+  * @retval Status
+  */
+uint8_t USBH_MSC_ModeSense6(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint8_t index;
+  USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {  
+    switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+    {
+    case CMD_SEND_STATE:
+      /*Prepare the CBW and relevent field*/
+      USBH_MSC_CBWData.field.CBWTransferLength = XFER_LEN_MODE_SENSE6;
+      USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+      USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+      
+      USBH_MSC_BOTXferParam.pRxTxBuff = USBH_DataInBuffer;
+      USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_MODE_SENSE6;
+      
+      for(index = CBW_CB_LENGTH; index != 0; index--)
+      {
+        USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+      }    
+      
+      USBH_MSC_CBWData.field.CBWCB[0]  = OPCODE_MODE_SENSE6; 
+      USBH_MSC_CBWData.field.CBWCB[2]  = MODE_SENSE_PAGE_CONTROL_FIELD | \
+                                         MODE_SENSE_PAGE_CODE;
+                                           
+      USBH_MSC_CBWData.field.CBWCB[4]  = XFER_LEN_MODE_SENSE6;
+                                                                                      
+      USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+      
+      /* Start the transfer, then let the state machine manage the other 
+                                                                transactions */
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+      USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+      USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+      
+      status = USBH_MSC_BUSY;
+      break;
+      
+    case CMD_WAIT_STATUS:
+      if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+      {
+        /* Assign the Write Protect status */
+        /* If WriteProtect = 0, Writing is allowed 
+           If WriteProtect != 0, Disk is Write Protected */
+        if ( USBH_DataInBuffer[2] & MASK_MODE_SENSE_WRITE_PROTECT)
+        {
+          USBH_MSC_Param.MSWriteProtect   = DISK_WRITE_PROTECTED;
+        }
+        else
+        {
+          USBH_MSC_Param.MSWriteProtect   = 0;
+        }
+        
+        /* Commands successfully sent and Response Received  */       
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_OK;      
+      }
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_FAIL;
+      }
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_PHASE_ERROR;    
+      }
+      else
+      {
+        /* Wait for the Commands to get Completed */
+        /* NO Change in state Machine */
+      }
+      break;
+      
+    default:
+      break;
+    }
+  }
+  return status;
+}
+
+/**
+  * @brief  USBH_MSC_RequestSense  
+  *         Issues the Request Sense command to the device. Once the response 
+  *         received, it updates the status to upper layer
+  * @param  None
+  * @retval Status
+  */
+uint8_t USBH_MSC_RequestSense(USB_OTG_CORE_HANDLE *pdev)
+{
+  USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+  
+  uint8_t index;
+  
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {  
+    switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+    {
+    case CMD_SEND_STATE:
+      
+      /*Prepare the CBW and relevent field*/
+      USBH_MSC_CBWData.field.CBWTransferLength = \
+                                                ALLOCATION_LENGTH_REQUEST_SENSE;
+      USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+      USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+      
+      USBH_MSC_BOTXferParam.pRxTxBuff = USBH_DataInBuffer;
+      USBH_MSC_BOTXferParam.MSCStateBkp = USBH_MSC_BOTXferParam.MSCStateCurrent;
+      USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_REQUEST_SENSE;
+      
+
+      for(index = CBW_CB_LENGTH; index != 0; index--)
+      {
+        USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+      }    
+      
+      USBH_MSC_CBWData.field.CBWCB[0]  = OPCODE_REQUEST_SENSE; 
+      USBH_MSC_CBWData.field.CBWCB[1]  = DESC_REQUEST_SENSE;
+      USBH_MSC_CBWData.field.CBWCB[4]  = ALLOCATION_LENGTH_REQUEST_SENSE;
+      
+      USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+      /* Start the transfer, then let the state machine magage 
+      the other transactions */
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+      USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+      USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+      
+      status = USBH_MSC_BUSY;
+      
+      break;
+      
+    case CMD_WAIT_STATUS:
+      
+      if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+      {
+        /* Get Sense data*/
+        (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[3]) = USBH_DataInBuffer[0];
+        (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[2]) = USBH_DataInBuffer[1];
+        (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[1]) = USBH_DataInBuffer[2];
+        (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[0]) = USBH_DataInBuffer[3];
+        
+        /* Commands successfully sent and Response Received  */       
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_OK;      
+      }
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_FAIL;
+      }
+      
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_PHASE_ERROR;    
+      }
+      
+      else
+      {
+        /* Wait for the Commands to get Completed */
+        /* NO Change in state Machine */
+      }
+      break;
+      
+    default:
+      break;
+    }
+  }
+  return status;
+}
+
+
+/**
+  * @brief  USBH_MSC_Write10 
+  *         Issue the write command to the device. Once the response received, 
+  *         it updates the status to upper layer
+  * @param  dataBuffer : DataBuffer contains the data to write
+  * @param  address : Address to which the data will be written
+  * @param  nbOfbytes : NbOfbytes to be written
+  * @retval Status
+  */
+uint8_t USBH_MSC_Write10(USB_OTG_CORE_HANDLE *pdev, 
+                         uint8_t *dataBuffer,
+                         uint32_t address,
+                         uint32_t nbOfbytes)
+{
+  uint8_t index;
+  USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+  uint16_t nbOfPages;
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {  
+    switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+    {
+    case CMD_SEND_STATE:   
+      USBH_MSC_CBWData.field.CBWTransferLength = nbOfbytes;
+      USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_OUT;
+      USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+      USBH_MSC_BOTXferParam.pRxTxBuff = dataBuffer;
+      
+      
+      for(index = CBW_CB_LENGTH; index != 0; index--)  
+      {
+        USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+      }
+      
+      USBH_MSC_CBWData.field.CBWCB[0]  = OPCODE_WRITE10; 
+      
+      /*logical block address*/
+      USBH_MSC_CBWData.field.CBWCB[2]  = (((uint8_t*)&address)[3]) ;
+      USBH_MSC_CBWData.field.CBWCB[3]  = (((uint8_t*)&address)[2]);
+      USBH_MSC_CBWData.field.CBWCB[4]  = (((uint8_t*)&address)[1]);
+      USBH_MSC_CBWData.field.CBWCB[5]  = (((uint8_t*)&address)[0]);
+      
+      /*USBH_MSC_PAGE_LENGTH = 512*/
+      nbOfPages = nbOfbytes/ USBH_MSC_PAGE_LENGTH; 
+      
+      /*Tranfer length */
+      USBH_MSC_CBWData.field.CBWCB[7]  = (((uint8_t *)&nbOfPages)[1]) ; 
+      USBH_MSC_CBWData.field.CBWCB[8]  = (((uint8_t *)&nbOfPages)[0]) ; 
+      
+      USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+      /* Start the transfer, then let the state machine 
+      magage the other transactions */
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+      USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+      USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+      
+      status = USBH_MSC_BUSY;
+      
+      break;
+      
+    case CMD_WAIT_STATUS:
+      if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+      { 
+        /* Commands successfully sent and Response Received  */       
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_OK;      
+      }
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+      }
+      
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_PHASE_ERROR;    
+      }
+      break;
+      
+    default:
+      break;
+    }
+  }
+  return status;
+}
+
+/**
+  * @brief  USBH_MSC_Read10 
+  *         Issue the read command to the device. Once the response received, 
+  *         it updates the status to upper layer
+  * @param  dataBuffer : DataBuffer will contain the data to be read
+  * @param  address : Address from which the data will be read
+  * @param  nbOfbytes : NbOfbytes to be read
+  * @retval Status
+  */
+uint8_t USBH_MSC_Read10(USB_OTG_CORE_HANDLE *pdev,
+                        uint8_t *dataBuffer,
+                        uint32_t address,
+                        uint32_t nbOfbytes)
+{
+  uint8_t index;
+  static USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+  uint16_t nbOfPages;
+  status = USBH_MSC_BUSY;
+  
+  if(HCD_IsDeviceConnected(pdev))
+  {
+    switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+    {
+    case CMD_SEND_STATE:
+      /*Prepare the CBW and relevent field*/
+      USBH_MSC_CBWData.field.CBWTransferLength = nbOfbytes;
+      USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+      USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+      
+      USBH_MSC_BOTXferParam.pRxTxBuff = dataBuffer;
+      
+      for(index = CBW_CB_LENGTH; index != 0; index--)
+      {
+        USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+      }
+      
+      USBH_MSC_CBWData.field.CBWCB[0]  = OPCODE_READ10; 
+      
+      /*logical block address*/
+      
+      USBH_MSC_CBWData.field.CBWCB[2]  = (((uint8_t*)&address)[3]);
+      USBH_MSC_CBWData.field.CBWCB[3]  = (((uint8_t*)&address)[2]);
+      USBH_MSC_CBWData.field.CBWCB[4]  = (((uint8_t*)&address)[1]);
+      USBH_MSC_CBWData.field.CBWCB[5]  = (((uint8_t*)&address)[0]);
+      
+      /*USBH_MSC_PAGE_LENGTH = 512*/
+      nbOfPages = nbOfbytes/ USBH_MSC_PAGE_LENGTH;  
+      
+      /*Tranfer length */
+      USBH_MSC_CBWData.field.CBWCB[7]  = (((uint8_t *)&nbOfPages)[1]) ; 
+      USBH_MSC_CBWData.field.CBWCB[8]  = (((uint8_t *)&nbOfPages)[0]) ; 
+      
+      
+      USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+      /* Start the transfer, then let the state machine 
+      magage the other transactions */
+      USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+      USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+      USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+      
+      status = USBH_MSC_BUSY;
+      
+      break;
+      
+    case CMD_WAIT_STATUS:
+      
+      if((USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK) && \
+        (HCD_IsDeviceConnected(pdev)))
+      { 
+        /* Commands successfully sent and Response Received  */       
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_OK;      
+      }
+      else if (( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL ) && \
+        (HCD_IsDeviceConnected(pdev)))
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+      }
+      
+      else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+      {
+        /* Failure Mode */
+        USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+        status = USBH_MSC_PHASE_ERROR;    
+      }
+      else
+      {
+        /* Wait for the Commands to get Completed */
+        /* NO Change in state Machine */
+      }
+      break;
+      
+    default:
+      break;
+    }
+  }
+  return status;
+}
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/inc/usbh_conf_template.h
@@ -1,0 +1,101 @@
+/**
+  ******************************************************************************
+  * @file    usbh_conf_template
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   General USB Host library configuration
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBH_CONF__H__
+#define __USBH_CONF__H__
+
+/* Includes ------------------------------------------------------------------*/
+
+/** @addtogroup USBH_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USBH_CONF
+  * @brief usb otg low level driver configuration file
+  * @{
+  */ 
+
+/** @defgroup USBH_CONF_Exported_Defines
+  * @{
+  */ 
+
+#define USBH_MAX_NUM_ENDPOINTS                2
+#define USBH_MAX_NUM_INTERFACES               2
+#ifdef USE_USB_OTG_FS 
+#define USBH_MSC_MPS_SIZE                 0x40
+#else
+#define USBH_MSC_MPS_SIZE                 0x200
+#endif
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CONF_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CONF_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_CONF_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_CONF_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+#endif //__USBH_CONF__H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/inc/usbh_core.h
@@ -1,0 +1,295 @@
+/**
+  ******************************************************************************
+  * @file    usbh_core.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbh_core.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_CORE_H
+#define __USBH_CORE_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_hcd.h"
+#include "usbh_def.h"
+#include "usbh_conf.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_CORE
+  * @brief This file is the Header file for usbh_core.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_CORE_Exported_Defines
+  * @{
+  */ 
+
+#define MSC_CLASS                         0x08
+#define HID_CLASS                         0x03
+#define MSC_PROTOCOL                      0x50
+#define CBI_PROTOCOL                      0x01
+
+
+#define USBH_MAX_ERROR_COUNT                            2
+#define USBH_DEVICE_ADDRESS_DEFAULT                     0
+#define USBH_DEVICE_ADDRESS                             1
+
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CORE_Exported_Types
+  * @{
+  */
+
+typedef enum {
+  USBH_OK   = 0,
+  USBH_BUSY,
+  USBH_FAIL,
+  USBH_NOT_SUPPORTED,
+  USBH_UNRECOVERED_ERROR,
+  USBH_ERROR_SPEED_UNKNOWN,
+  USBH_APPLY_DEINIT
+}USBH_Status;
+
+/* Following states are used for gState */
+typedef enum {
+  HOST_IDLE =0,
+  HOST_DEV_ATTACHED,
+  HOST_DEV_DISCONNECTED,  
+  HOST_DETECT_DEVICE_SPEED,
+  HOST_ENUMERATION,
+  HOST_CLASS_REQUEST,  
+  HOST_CLASS,
+  HOST_CTRL_XFER,
+  HOST_USR_INPUT,
+  HOST_SUSPENDED,
+  HOST_ERROR_STATE  
+}HOST_State;  
+
+/* Following states are used for EnumerationState */
+typedef enum {
+  ENUM_IDLE = 0,
+  ENUM_GET_FULL_DEV_DESC,
+  ENUM_SET_ADDR,
+  ENUM_GET_CFG_DESC,
+  ENUM_GET_FULL_CFG_DESC,
+  ENUM_GET_MFC_STRING_DESC,
+  ENUM_GET_PRODUCT_STRING_DESC,
+  ENUM_GET_SERIALNUM_STRING_DESC,
+  ENUM_SET_CONFIGURATION,
+  ENUM_DEV_CONFIGURED
+} ENUM_State;  
+
+
+
+/* Following states are used for CtrlXferStateMachine */
+typedef enum {
+  CTRL_IDLE =0,
+  CTRL_SETUP,
+  CTRL_SETUP_WAIT,
+  CTRL_DATA_IN,
+  CTRL_DATA_IN_WAIT,
+  CTRL_DATA_OUT,
+  CTRL_DATA_OUT_WAIT,
+  CTRL_STATUS_IN,
+  CTRL_STATUS_IN_WAIT,
+  CTRL_STATUS_OUT,
+  CTRL_STATUS_OUT_WAIT,
+  CTRL_ERROR,
+  CTRL_STALLED,
+  CTRL_COMPLETE    
+}
+CTRL_State;  
+
+typedef enum {
+  USBH_USR_NO_RESP   = 0,
+  USBH_USR_RESP_OK = 1,
+}
+USBH_USR_Status;
+
+/* Following states are used for RequestState */
+typedef enum {
+  CMD_IDLE =0,
+  CMD_SEND,
+  CMD_WAIT
+} CMD_State;  
+
+
+
+typedef struct _Ctrl
+{
+  uint8_t               hc_num_in; 
+  uint8_t               hc_num_out; 
+  uint8_t               ep0size;  
+  uint8_t               *buff;
+  uint16_t              length;
+  uint8_t               errorcount;
+  uint16_t              timer;  
+  CTRL_STATUS           status;
+  USB_Setup_TypeDef     setup;
+  CTRL_State            state;  
+
+} USBH_Ctrl_TypeDef;
+
+
+
+typedef struct _DeviceProp
+{
+  
+  uint8_t                           address;
+  uint8_t                           speed;
+  USBH_DevDesc_TypeDef              Dev_Desc;
+  USBH_CfgDesc_TypeDef              Cfg_Desc;  
+  USBH_InterfaceDesc_TypeDef        Itf_Desc[USBH_MAX_NUM_INTERFACES];
+  USBH_EpDesc_TypeDef               Ep_Desc[USBH_MAX_NUM_INTERFACES][USBH_MAX_NUM_ENDPOINTS];
+  USBH_HIDDesc_TypeDef              HID_Desc;
+  
+}USBH_Device_TypeDef;
+
+typedef struct _USBH_Class_cb
+{
+  USBH_Status  (*Init)\
+    (USB_OTG_CORE_HANDLE *pdev , void *phost);
+  void         (*DeInit)\
+    (USB_OTG_CORE_HANDLE *pdev , void *phost);
+  USBH_Status  (*Requests)\
+    (USB_OTG_CORE_HANDLE *pdev , void *phost);  
+  USBH_Status  (*Machine)\
+    (USB_OTG_CORE_HANDLE *pdev , void *phost);     
+  
+} USBH_Class_cb_TypeDef;
+
+
+typedef struct _USBH_USR_PROP
+{
+  void (*Init)(void);       /* HostLibInitialized */
+  void (*DeInit)(void);       /* HostLibInitialized */  
+  void (*DeviceAttached)(void);           /* DeviceAttached */
+  void (*ResetDevice)(void);
+  void (*DeviceDisconnected)(void); 
+  void (*OverCurrentDetected)(void);  
+  void (*DeviceSpeedDetected)(uint8_t DeviceSpeed);          /* DeviceSpeed */
+  void (*DeviceDescAvailable)(void *);    /* DeviceDescriptor is available */
+  void (*DeviceAddressAssigned)(void);  /* Address is assigned to USB Device */
+  void (*ConfigurationDescAvailable)(USBH_CfgDesc_TypeDef *,
+                                     USBH_InterfaceDesc_TypeDef *,
+                                     USBH_EpDesc_TypeDef *); 
+  /* Configuration Descriptor available */
+  void (*ManufacturerString)(void *);     /* ManufacturerString*/
+  void (*ProductString)(void *);          /* ProductString*/
+  void (*SerialNumString)(void *);        /* SerialNubString*/
+  void (*EnumerationDone)(void);           /* Enumeration finished */
+  USBH_USR_Status (*UserInput)(void);
+  int  (*UserApplication) (void);
+  void (*DeviceNotSupported)(void); /* Device is not supported*/
+  void (*UnrecoveredError)(void);
+
+}
+USBH_Usr_cb_TypeDef;
+
+typedef struct _Host_TypeDef
+{
+  HOST_State            gState;       /*  Host State Machine Value */
+  HOST_State            gStateBkp;    /* backup of previous State machine value */
+  ENUM_State            EnumState;    /* Enumeration state Machine */
+  CMD_State             RequestState;       
+  USBH_Ctrl_TypeDef     Control;
+  
+  USBH_Device_TypeDef   device_prop; 
+  
+  USBH_Class_cb_TypeDef               *class_cb;  
+  USBH_Usr_cb_TypeDef  	              *usr_cb;
+
+  
+} USBH_HOST, *pUSBH_HOST;
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBH_CORE_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_CORE_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_CORE_Exported_FunctionsPrototype
+  * @{
+  */ 
+void USBH_Init(USB_OTG_CORE_HANDLE *pdev,
+               USB_OTG_CORE_ID_TypeDef coreID, 
+               USBH_HOST *phost,                    
+               USBH_Class_cb_TypeDef *class_cb, 
+               USBH_Usr_cb_TypeDef *usr_cb);
+               
+USBH_Status USBH_DeInit(USB_OTG_CORE_HANDLE *pdev, 
+                        USBH_HOST *phost);
+void USBH_Process(USB_OTG_CORE_HANDLE *pdev , 
+                  USBH_HOST *phost);
+void USBH_ErrorHandle(USBH_HOST *phost, 
+                      USBH_Status errType);
+
+/**
+  * @}
+  */ 
+
+#endif /* __USBH_CORE_H */
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/inc/usbh_def.h
@@ -1,0 +1,288 @@
+/**
+  ******************************************************************************
+  * @file    usbh_def.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Definitions used in the USB host library
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_DEF
+  * @brief This file is includes USB descriptors
+  * @{
+  */ 
+
+#ifndef  USBH_DEF_H
+#define  USBH_DEF_H
+
+#ifndef USBH_NULL
+#define USBH_NULL ((void *)0)
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+
+#define ValBit(VAR,POS)                               (VAR & (1 << POS))
+#define SetBit(VAR,POS)                               (VAR |= (1 << POS))
+#define ClrBit(VAR,POS)                               (VAR &= ((1 << POS)^255))
+
+#define  LE16(addr)             (((u16)(*((u8 *)(addr))))\
+                                + (((u16)(*(((u8 *)(addr)) + 1))) << 8))
+
+#define  USB_LEN_DESC_HDR                               0x02
+#define  USB_LEN_DEV_DESC                               0x12
+#define  USB_LEN_CFG_DESC                               0x09
+#define  USB_LEN_IF_DESC                                0x09
+#define  USB_LEN_EP_DESC                                0x07
+#define  USB_LEN_OTG_DESC                               0x03
+#define  USB_LEN_SETUP_PKT                              0x08
+
+/* bmRequestType :D7 Data Phase Transfer Direction  */
+#define  USB_REQ_DIR_MASK                               0x80
+#define  USB_H2D                                        0x00
+#define  USB_D2H                                        0x80
+
+/* bmRequestType D6..5 Type */
+#define  USB_REQ_TYPE_STANDARD                          0x00
+#define  USB_REQ_TYPE_CLASS                             0x20
+#define  USB_REQ_TYPE_VENDOR                            0x40
+#define  USB_REQ_TYPE_RESERVED                          0x60
+
+/* bmRequestType D4..0 Recipient */
+#define  USB_REQ_RECIPIENT_DEVICE                       0x00
+#define  USB_REQ_RECIPIENT_INTERFACE                    0x01
+#define  USB_REQ_RECIPIENT_ENDPOINT                     0x02
+#define  USB_REQ_RECIPIENT_OTHER                        0x03
+
+/* Table 9-4. Standard Request Codes  */
+/* bRequest , Value */
+#define  USB_REQ_GET_STATUS                             0x00
+#define  USB_REQ_CLEAR_FEATURE                          0x01
+#define  USB_REQ_SET_FEATURE                            0x03
+#define  USB_REQ_SET_ADDRESS                            0x05
+#define  USB_REQ_GET_DESCRIPTOR                         0x06
+#define  USB_REQ_SET_DESCRIPTOR                         0x07
+#define  USB_REQ_GET_CONFIGURATION                      0x08
+#define  USB_REQ_SET_CONFIGURATION                      0x09
+#define  USB_REQ_GET_INTERFACE                          0x0A
+#define  USB_REQ_SET_INTERFACE                          0x0B
+#define  USB_REQ_SYNCH_FRAME                            0x0C
+
+/* Table 9-5. Descriptor Types of USB Specifications */
+#define  USB_DESC_TYPE_DEVICE                              1
+#define  USB_DESC_TYPE_CONFIGURATION                       2
+#define  USB_DESC_TYPE_STRING                              3
+#define  USB_DESC_TYPE_INTERFACE                           4
+#define  USB_DESC_TYPE_ENDPOINT                            5
+#define  USB_DESC_TYPE_DEVICE_QUALIFIER                    6
+#define  USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION           7
+#define  USB_DESC_TYPE_INTERFACE_POWER                     8
+#define  USB_DESC_TYPE_HID                                 0x21
+#define  USB_DESC_TYPE_HID_REPORT                          0x22
+
+
+#define USB_DEVICE_DESC_SIZE                               18
+#define USB_CONFIGURATION_DESC_SIZE                        9
+#define USB_HID_DESC_SIZE                                  9
+#define USB_INTERFACE_DESC_SIZE                            9
+#define USB_ENDPOINT_DESC_SIZE                             7
+
+/* Descriptor Type and Descriptor Index  */
+/* Use the following values when calling the function USBH_GetDescriptor  */
+#define  USB_DESC_DEVICE                    ((USB_DESC_TYPE_DEVICE << 8) & 0xFF00)
+#define  USB_DESC_CONFIGURATION             ((USB_DESC_TYPE_CONFIGURATION << 8) & 0xFF00)
+#define  USB_DESC_STRING                    ((USB_DESC_TYPE_STRING << 8) & 0xFF00)
+#define  USB_DESC_INTERFACE                 ((USB_DESC_TYPE_INTERFACE << 8) & 0xFF00)
+#define  USB_DESC_ENDPOINT                  ((USB_DESC_TYPE_INTERFACE << 8) & 0xFF00)
+#define  USB_DESC_DEVICE_QUALIFIER          ((USB_DESC_TYPE_DEVICE_QUALIFIER << 8) & 0xFF00)
+#define  USB_DESC_OTHER_SPEED_CONFIGURATION ((USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION << 8) & 0xFF00)
+#define  USB_DESC_INTERFACE_POWER           ((USB_DESC_TYPE_INTERFACE_POWER << 8) & 0xFF00)
+#define  USB_DESC_HID_REPORT                ((USB_DESC_TYPE_HID_REPORT << 8) & 0xFF00)
+#define  USB_DESC_HID                       ((USB_DESC_TYPE_HID << 8) & 0xFF00)
+
+
+#define  USB_EP_TYPE_CTRL                               0x00
+#define  USB_EP_TYPE_ISOC                               0x01
+#define  USB_EP_TYPE_BULK                               0x02
+#define  USB_EP_TYPE_INTR                               0x03
+
+#define  USB_EP_DIR_OUT                                 0x00
+#define  USB_EP_DIR_IN                                  0x80
+#define  USB_EP_DIR_MSK                                 0x80  
+
+/* supported classes */
+#define USB_MSC_CLASS                                   0x08
+#define USB_HID_CLASS                                   0x03
+
+/* Interface Descriptor field values for HID Boot Protocol */
+#define HID_BOOT_CODE                                  0x01    
+#define HID_KEYBRD_BOOT_CODE                           0x01
+#define HID_MOUSE_BOOT_CODE                            0x02
+
+/* As per USB specs 9.2.6.4 :Standard request with data request timeout: 5sec
+   Standard request with no data stage timeout : 50ms */
+#define DATA_STAGE_TIMEOUT                              5000 
+#define NODATA_STAGE_TIMEOUT                            50
+
+/**
+  * @}
+  */ 
+
+
+#define USBH_CONFIGURATION_DESCRIPTOR_SIZE (USB_CONFIGURATION_DESC_SIZE \
+                                           + USB_INTERFACE_DESC_SIZE\
+                                           + (USBH_MAX_NUM_ENDPOINTS * USB_ENDPOINT_DESC_SIZE))
+
+
+#define CONFIG_DESC_wTOTAL_LENGTH (ConfigurationDescriptorData.ConfigDescfield.\
+                                          ConfigurationDescriptor.wTotalLength)
+
+
+/*  This Union is copied from usb_core.h  */
+typedef union
+{
+  uint16_t w;
+  struct BW
+  {
+    uint8_t msb;
+    uint8_t lsb;
+  }
+  bw;
+}
+uint16_t_uint8_t;
+
+
+typedef union _USB_Setup
+{
+  uint8_t d8[8];
+  
+  struct _SetupPkt_Struc
+  {
+    uint8_t           bmRequestType;
+    uint8_t           bRequest;
+    uint16_t_uint8_t  wValue;
+    uint16_t_uint8_t  wIndex;
+    uint16_t_uint8_t  wLength;
+  } b;
+} 
+USB_Setup_TypeDef;  
+
+typedef  struct  _DescHeader 
+{
+    uint8_t  bLength;       
+    uint8_t  bDescriptorType;
+} 
+USBH_DescHeader_t;
+
+typedef struct _DeviceDescriptor
+{
+  uint8_t   bLength;
+  uint8_t   bDescriptorType;
+  uint16_t  bcdUSB;        /* USB Specification Number which device complies too */
+  uint8_t   bDeviceClass;
+  uint8_t   bDeviceSubClass; 
+  uint8_t   bDeviceProtocol;
+  /* If equal to Zero, each interface specifies its own class
+  code if equal to 0xFF, the class code is vendor specified.
+  Otherwise field is valid Class Code.*/
+  uint8_t   bMaxPacketSize;
+  uint16_t  idVendor;      /* Vendor ID (Assigned by USB Org) */
+  uint16_t  idProduct;     /* Product ID (Assigned by Manufacturer) */
+  uint16_t  bcdDevice;     /* Device Release Number */
+  uint8_t   iManufacturer;  /* Index of Manufacturer String Descriptor */
+  uint8_t   iProduct;       /* Index of Product String Descriptor */
+  uint8_t   iSerialNumber;  /* Index of Serial Number String Descriptor */
+  uint8_t   bNumConfigurations; /* Number of Possible Configurations */
+}
+USBH_DevDesc_TypeDef;
+
+
+typedef struct _ConfigurationDescriptor
+{
+  uint8_t   bLength;
+  uint8_t   bDescriptorType;
+  uint16_t  wTotalLength;        /* Total Length of Data Returned */
+  uint8_t   bNumInterfaces;       /* Number of Interfaces */
+  uint8_t   bConfigurationValue;  /* Value to use as an argument to select this configuration*/
+  uint8_t   iConfiguration;       /*Index of String Descriptor Describing this configuration */
+  uint8_t   bmAttributes;         /* D7 Bus Powered , D6 Self Powered, D5 Remote Wakeup , D4..0 Reserved (0)*/
+  uint8_t   bMaxPower;            /*Maximum Power Consumption */
+}
+USBH_CfgDesc_TypeDef;
+
+
+typedef struct _HIDDescriptor
+{
+  uint8_t   bLength;
+  uint8_t   bDescriptorType;
+  uint16_t  bcdHID;               /* indicates what endpoint this descriptor is describing */
+  uint8_t   bCountryCode;        /* specifies the transfer type. */
+  uint8_t   bNumDescriptors;     /* specifies the transfer type. */
+  uint8_t   bReportDescriptorType;    /* Maximum Packet Size this endpoint is capable of sending or receiving */  
+  uint16_t  wItemLength;          /* is used to specify the polling interval of certain transfers. */
+}
+USBH_HIDDesc_TypeDef;
+
+
+typedef struct _InterfaceDescriptor
+{
+  uint8_t bLength;
+  uint8_t bDescriptorType;
+  uint8_t bInterfaceNumber;
+  uint8_t bAlternateSetting;    /* Value used to select alternative setting */
+  uint8_t bNumEndpoints;        /* Number of Endpoints used for this interface */
+  uint8_t bInterfaceClass;      /* Class Code (Assigned by USB Org) */
+  uint8_t bInterfaceSubClass;   /* Subclass Code (Assigned by USB Org) */
+  uint8_t bInterfaceProtocol;   /* Protocol Code */
+  uint8_t iInterface;           /* Index of String Descriptor Describing this interface */
+  
+}
+USBH_InterfaceDesc_TypeDef;
+
+
+typedef struct _EndpointDescriptor
+{
+  uint8_t   bLength;
+  uint8_t   bDescriptorType;
+  uint8_t   bEndpointAddress;   /* indicates what endpoint this descriptor is describing */
+  uint8_t   bmAttributes;       /* specifies the transfer type. */
+  uint16_t  wMaxPacketSize;    /* Maximum Packet Size this endpoint is capable of sending or receiving */  
+  uint8_t   bInterval;          /* is used to specify the polling interval of certain transfers. */
+}
+USBH_EpDesc_TypeDef;
+#endif
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/inc/usbh_hcs.h
@@ -1,0 +1,129 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hcs.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbh_hcs.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_HCS_H
+#define __USBH_HCS_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_core.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_HCS
+  * @brief This file is the header file for usbh_hcs.c
+  * @{
+  */ 
+
+/** @defgroup USBH_HCS_Exported_Defines
+  * @{
+  */
+#define HC_MAX           8
+
+#define HC_OK            0x0000
+#define HC_USED          0x8000
+#define HC_ERROR         0xFFFF
+#define HC_USED_MASK     0x7FFF
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HCS_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HCS_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HCS_Exported_FunctionsPrototype
+  * @{
+  */
+
+uint8_t USBH_Alloc_Channel(USB_OTG_CORE_HANDLE *pdev, uint8_t ep_addr);
+
+uint8_t USBH_Free_Channel  (USB_OTG_CORE_HANDLE *pdev, uint8_t idx);
+
+uint8_t USBH_DeAllocate_AllChannel  (USB_OTG_CORE_HANDLE *pdev);
+
+uint8_t USBH_Open_Channel  (USB_OTG_CORE_HANDLE *pdev,
+                            uint8_t ch_num,
+                            uint8_t dev_address,
+                            uint8_t speed,
+                            uint8_t ep_type,
+                            uint16_t mps);
+
+uint8_t USBH_Modify_Channel (USB_OTG_CORE_HANDLE *pdev,
+                            uint8_t hc_num,
+                            uint8_t dev_address,
+                            uint8_t speed,
+                            uint8_t ep_type,
+                            uint16_t mps);
+/**
+  * @}
+  */ 
+
+
+
+#endif /* __USBH_HCS_H */
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/inc/usbh_ioreq.h
@@ -1,0 +1,156 @@
+/**
+  ******************************************************************************
+  * @file    usbh_ioreq.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbh_ioreq.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_IOREQ_H
+#define __USBH_IOREQ_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+#include "usbh_core.h"
+#include "usbh_def.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_IOREQ
+  * @brief This file is the header file for usbh_ioreq.c
+  * @{
+  */ 
+
+
+/** @defgroup USBH_IOREQ_Exported_Defines
+  * @{
+  */
+#define USBH_SETUP_PKT_SIZE   8
+#define USBH_EP0_EP_NUM       0
+#define USBH_MAX_PACKET_SIZE  0x40
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_IOREQ_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_IOREQ_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_IOREQ_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_IOREQ_Exported_FunctionsPrototype
+  * @{
+  */
+USBH_Status USBH_CtlSendSetup ( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint8_t hc_num);
+
+USBH_Status USBH_CtlSendData ( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint16_t length,
+                                uint8_t hc_num);
+
+USBH_Status USBH_CtlReceiveData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint16_t length,
+                                uint8_t hc_num);
+
+USBH_Status USBH_BulkReceiveData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint16_t length,
+                                uint8_t hc_num);
+
+USBH_Status USBH_BulkSendData ( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint16_t length,
+                                uint8_t hc_num);
+
+USBH_Status USBH_InterruptReceiveData( USB_OTG_CORE_HANDLE *pdev, 
+                                       uint8_t             *buff, 
+                                       uint8_t             length,
+                                       uint8_t             hc_num);
+
+USBH_Status USBH_InterruptSendData( USB_OTG_CORE_HANDLE *pdev, 
+                                    uint8_t *buff, 
+                                    uint8_t length,
+                                    uint8_t hc_num);
+
+USBH_Status USBH_CtlReq (USB_OTG_CORE_HANDLE *pdev,
+                         USBH_HOST *phost, 
+                         uint8_t             *buff,
+                         uint16_t            length);
+
+USBH_Status USBH_IsocReceiveData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint32_t length,
+                                uint8_t hc_num);
+
+
+USBH_Status USBH_IsocSendData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint32_t length,
+                                uint8_t hc_num);
+/**
+  * @}
+  */ 
+
+#endif /* __USBH_IOREQ_H */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/inc/usbh_stdreq.h
@@ -1,0 +1,161 @@
+/**
+  ******************************************************************************
+  * @file    usbh_stdreq.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header file for usbh_stdreq.c
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive  ----------------------------------------------*/
+#ifndef __USBH_STDREQ_H
+#define __USBH_STDREQ_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+#include "usb_hcd.h"
+#include "usbh_core.h"
+#include "usbh_def.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_STDREQ
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USBH_STDREQ_Exported_Defines
+  * @{
+  */
+/*Standard Feature Selector for clear feature command*/
+#define FEATURE_SELECTOR_ENDPOINT         0X00
+#define FEATURE_SELECTOR_DEVICE           0X01
+
+
+#define INTERFACE_DESC_TYPE               0x04
+#define ENDPOINT_DESC_TYPE                0x05
+#define INTERFACE_DESC_SIZE               0x09
+
+
+#define USBH_HID_CLASS                    0x03
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_STDREQ_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_STDREQ_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_STDREQ_Exported_Variables
+  * @{
+  */ 
+extern uint8_t USBH_CfgDesc[512];
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_STDREQ_Exported_FunctionsPrototype
+  * @{
+  */
+USBH_Status USBH_GetDescriptor(USB_OTG_CORE_HANDLE *pdev, 
+                               USBH_HOST           *phost,                                
+                               uint8_t  req_type,
+                               uint16_t value_idx, 
+                               uint8_t* buff, 
+                               uint16_t length );
+
+USBH_Status USBH_Get_DevDesc(USB_OTG_CORE_HANDLE *pdev,
+                             USBH_HOST *phost,
+                             uint8_t length);
+
+USBH_Status USBH_Get_StringDesc(USB_OTG_CORE_HANDLE *pdev, 
+                                USBH_HOST           *phost,                                 
+                                uint8_t string_index, 
+                                uint8_t *buff, 
+                                uint16_t length);
+
+USBH_Status USBH_SetCfg(USB_OTG_CORE_HANDLE *pdev, 
+                        USBH_HOST *phost,
+                        uint16_t configuration_value);
+
+USBH_Status USBH_Get_CfgDesc(USB_OTG_CORE_HANDLE *pdev,
+                             USBH_HOST           *phost,                                 
+                             uint16_t length);
+
+USBH_Status USBH_SetAddress(USB_OTG_CORE_HANDLE *pdev, 
+                            USBH_HOST           *phost,                             
+                            uint8_t DeviceAddress);
+
+USBH_Status USBH_ClrFeature(USB_OTG_CORE_HANDLE *pdev,
+                            USBH_HOST           *phost,                             
+                            uint8_t ep_num, uint8_t hc_num); 
+
+USBH_Status USBH_SetInterface(USB_OTG_CORE_HANDLE *pdev, 
+                        USBH_HOST *phost,
+                        uint8_t ep_num, uint8_t altSetting);
+
+USBH_Status USBH_Issue_ClrFeature(USB_OTG_CORE_HANDLE *pdev, 
+                                  USBH_HOST           *phost, 
+                                  uint8_t ep_num);
+
+USBH_DescHeader_t      *USBH_GetNextDesc (uint8_t   *pbuf, 
+                                                  uint16_t  *ptr);
+/**
+  * @}
+  */ 
+
+#endif /* __USBH_STDREQ_H */
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/src/usbh_core.c
@@ -1,0 +1,857 @@
+/**
+  ******************************************************************************
+  * @file    usbh_core.c 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file implements the functions for the core state machine process
+  *          the enumeration and the control transfer process
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+/* Includes ------------------------------------------------------------------*/
+
+#include "usbh_ioreq.h"
+#include "usb_bsp.h"
+#include "usbh_hcs.h"
+#include "usbh_stdreq.h"
+#include "usbh_core.h"
+#include "usb_hcd_int.h"
+
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+
+/** @defgroup USBH_CORE 
+  * @brief TThis file handles the basic enumaration when a device is connected 
+  *          to the host.
+  * @{
+  */ 
+
+/** @defgroup USBH_CORE_Private_TypesDefinitions
+  * @{
+  */ 
+uint8_t USBH_Disconnected (USB_OTG_CORE_HANDLE *pdev); 
+uint8_t USBH_Connected (USB_OTG_CORE_HANDLE *pdev); 
+uint8_t USBH_SOF (USB_OTG_CORE_HANDLE *pdev); 
+
+USBH_HCD_INT_cb_TypeDef USBH_HCD_INT_cb = 
+{
+  USBH_SOF,
+  USBH_Connected, 
+  USBH_Disconnected,    
+};
+
+USBH_HCD_INT_cb_TypeDef  *USBH_HCD_INT_fops = &USBH_HCD_INT_cb;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CORE_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CORE_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CORE_Private_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CORE_Private_FunctionPrototypes
+  * @{
+  */
+static USBH_Status USBH_HandleEnum(USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost);
+USBH_Status USBH_HandleControl (USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost);
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_CORE_Private_Functions
+  * @{
+  */ 
+
+
+/**
+  * @brief  USBH_Connected
+  *         USB Connect callback function from the Interrupt. 
+  * @param  selected device
+  * @retval Status
+*/
+uint8_t USBH_Connected (USB_OTG_CORE_HANDLE *pdev)
+{
+  pdev->host.ConnSts = 1;
+  return 0;
+}
+
+/**
+* @brief  USBH_Disconnected
+*         USB Disconnect callback function from the Interrupt. 
+* @param  selected device
+* @retval Status
+*/
+
+uint8_t USBH_Disconnected (USB_OTG_CORE_HANDLE *pdev)
+{
+  pdev->host.ConnSts = 0;
+  return 0;  
+}
+
+/**
+  * @brief  USBH_SOF
+  *         USB SOF callback function from the Interrupt. 
+  * @param  selected device
+  * @retval Status
+  */
+
+uint8_t USBH_SOF (USB_OTG_CORE_HANDLE *pdev)
+{
+  /* This callback could be used to implement a scheduler process */
+  return 0;  
+}
+/**
+  * @brief  USBH_Init
+  *         Host hardware and stack initializations 
+  * @param  class_cb: Class callback structure address
+  * @param  usr_cb: User callback structure address
+  * @retval None
+  */
+void USBH_Init(USB_OTG_CORE_HANDLE *pdev,
+               USB_OTG_CORE_ID_TypeDef coreID,
+               USBH_HOST *phost,               
+               USBH_Class_cb_TypeDef *class_cb, 
+               USBH_Usr_cb_TypeDef *usr_cb)
+{
+     
+  /* Hardware Init */
+  USB_OTG_BSP_Init(pdev);  
+  
+  /* configure GPIO pin used for switching VBUS power */
+  USB_OTG_BSP_ConfigVBUS(0);  
+  
+  
+  /* Host de-initializations */
+  USBH_DeInit(pdev, phost);
+  
+  /*Register class and user callbacks */
+  phost->class_cb = class_cb;
+  phost->usr_cb = usr_cb;  
+    
+  /* Start the USB OTG core */     
+   HCD_Init(pdev , coreID);
+   
+  /* Upon Init call usr call back */
+  phost->usr_cb->Init();
+  
+  /* Enable Interrupts */
+  USB_OTG_BSP_EnableInterrupt(pdev);
+}
+
+/**
+  * @brief  USBH_DeInit 
+  *         Re-Initialize Host
+  * @param  None 
+  * @retval status: USBH_Status
+  */
+USBH_Status USBH_DeInit(USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost)
+{
+  /* Software Init */
+  
+  phost->gState = HOST_IDLE;
+  phost->gStateBkp = HOST_IDLE; 
+  phost->EnumState = ENUM_IDLE;
+  phost->RequestState = CMD_SEND;  
+  
+  phost->Control.state = CTRL_SETUP;
+  phost->Control.ep0size = USB_OTG_MAX_EP0_SIZE;  
+  
+  phost->device_prop.address = USBH_DEVICE_ADDRESS_DEFAULT;
+  phost->device_prop.speed = HPRT0_PRTSPD_FULL_SPEED;
+  
+  USBH_Free_Channel  (pdev, phost->Control.hc_num_in);
+  USBH_Free_Channel  (pdev, phost->Control.hc_num_out);  
+  return USBH_OK;
+}
+
+/**
+* @brief  USBH_Process
+*         USB Host core main state machine process
+* @param  None 
+* @retval None
+*/
+void USBH_Process(USB_OTG_CORE_HANDLE *pdev , USBH_HOST *phost)
+{
+  volatile USBH_Status status = USBH_FAIL;
+  
+  
+  /* check for Host port events */
+  if ((HCD_IsDeviceConnected(pdev) == 0)&& (phost->gState != HOST_IDLE)) 
+  {
+    if(phost->gState != HOST_DEV_DISCONNECTED) 
+    {
+      phost->gState = HOST_DEV_DISCONNECTED;
+    }
+  }
+    
+  switch (phost->gState)
+  {
+  
+  case HOST_IDLE :
+    
+    if (HCD_IsDeviceConnected(pdev))  
+    {
+      phost->gState = HOST_DEV_ATTACHED;
+      USB_OTG_BSP_mDelay(100);
+    }
+    break;
+   
+  case HOST_DEV_ATTACHED :
+    
+    phost->usr_cb->DeviceAttached();
+    phost->Control.hc_num_out = USBH_Alloc_Channel(pdev, 0x00);
+    phost->Control.hc_num_in = USBH_Alloc_Channel(pdev, 0x80);  
+  
+    /* Reset USB Device */
+    if ( HCD_ResetPort(pdev) == 0)
+    {
+      phost->usr_cb->ResetDevice();
+      /*  Wait for USB USBH_ISR_PrtEnDisableChange()  
+      Host is Now ready to start the Enumeration 
+      */
+      
+      phost->device_prop.speed = HCD_GetCurrentSpeed(pdev);
+      
+      phost->gState = HOST_ENUMERATION;
+      phost->usr_cb->DeviceSpeedDetected(phost->device_prop.speed);
+        
+      /* Open Control pipes */
+      USBH_Open_Channel (pdev,
+                           phost->Control.hc_num_in,
+                           phost->device_prop.address,
+                           phost->device_prop.speed,
+                           EP_TYPE_CTRL,
+                           phost->Control.ep0size); 
+      
+      /* Open Control pipes */
+      USBH_Open_Channel (pdev,
+                           phost->Control.hc_num_out,
+                           phost->device_prop.address,
+                           phost->device_prop.speed,
+                           EP_TYPE_CTRL,
+                           phost->Control.ep0size);          
+   }
+    break;
+    
+  case HOST_ENUMERATION:     
+    /* Check for enumeration status */  
+    if ( USBH_HandleEnum(pdev , phost) == USBH_OK)
+    { 
+      /* The function shall return USBH_OK when full enumeration is complete */
+      
+      /* user callback for end of device basic enumeration */
+      phost->usr_cb->EnumerationDone();
+      
+      phost->gState  = HOST_USR_INPUT;    
+    }
+    break;
+    
+  case HOST_USR_INPUT:    
+    /*The function should return user response true to move to class state */
+    if ( phost->usr_cb->UserInput() == USBH_USR_RESP_OK)
+    {
+      if((phost->class_cb->Init(pdev, phost))\
+        == USBH_OK)
+      {
+        phost->gState  = HOST_CLASS_REQUEST;     
+      }     
+    }   
+    break;
+    
+  case HOST_CLASS_REQUEST:  
+    /* process class standard contol requests state machine */ 
+    status = phost->class_cb->Requests(pdev, phost);
+    
+     if(status == USBH_OK)
+     {
+       phost->gState  = HOST_CLASS;
+     }  
+     
+     else
+     {
+       USBH_ErrorHandle(phost, status);
+     }
+ 
+    
+    break;    
+  case HOST_CLASS:   
+    /* process class state machine */
+    status = phost->class_cb->Machine(pdev, phost);
+    USBH_ErrorHandle(phost, status);
+    break;       
+    
+  case HOST_CTRL_XFER:
+    /* process control transfer state machine */
+    USBH_HandleControl(pdev, phost);    
+    break;
+    
+  case HOST_SUSPENDED:
+    break;
+  
+  case HOST_ERROR_STATE:
+    /* Re-Initilaize Host for new Enumeration */
+    USBH_DeInit(pdev, phost);
+    phost->usr_cb->DeInit();
+    phost->class_cb->DeInit(pdev, &phost->device_prop);
+    break;
+    
+  case HOST_DEV_DISCONNECTED :
+    
+    /* Manage User disconnect operations*/
+    phost->usr_cb->DeviceDisconnected();
+    
+    /* Re-Initilaize Host for new Enumeration */
+    USBH_DeInit(pdev, phost);
+    phost->usr_cb->DeInit();
+    phost->class_cb->DeInit(pdev, &phost->device_prop); 
+    USBH_DeAllocate_AllChannel(pdev);  
+    phost->gState = HOST_IDLE;
+    
+    break;
+    
+  default :
+    break;
+  }
+
+}
+
+
+/**
+  * @brief  USBH_ErrorHandle 
+  *         This function handles the Error on Host side.
+  * @param  errType : Type of Error or Busy/OK state
+  * @retval None
+  */
+void USBH_ErrorHandle(USBH_HOST *phost, USBH_Status errType)
+{
+  /* Error unrecovered or not supported device speed */
+  if ( (errType == USBH_ERROR_SPEED_UNKNOWN) ||
+       (errType == USBH_UNRECOVERED_ERROR) )
+  {
+    phost->usr_cb->UnrecoveredError(); 
+    phost->gState = HOST_ERROR_STATE;   
+  }  
+  /* USB host restart requested from application layer */
+  else if(errType == USBH_APPLY_DEINIT)
+  {
+    phost->gState = HOST_ERROR_STATE;  
+    /* user callback for initalization */
+    phost->usr_cb->Init();
+  } 
+}
+
+
+/**
+  * @brief  USBH_HandleEnum 
+  *         This function includes the complete enumeration process
+  * @param  pdev: Selected device
+  * @retval USBH_Status
+  */
+static USBH_Status USBH_HandleEnum(USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost)
+{
+  USBH_Status Status = USBH_BUSY;  
+  uint8_t Local_Buffer[64];
+  
+  switch (phost->EnumState)
+  {
+  case ENUM_IDLE:  
+    /* Get Device Desc for only 1st 8 bytes : To get EP0 MaxPacketSize */
+    if ( USBH_Get_DevDesc(pdev , phost, 8) == USBH_OK)
+    {
+      phost->Control.ep0size = phost->device_prop.Dev_Desc.bMaxPacketSize;
+      
+      /* Issue Reset  */
+      HCD_ResetPort(pdev);
+      phost->EnumState = ENUM_GET_FULL_DEV_DESC;
+      
+      /* modify control channels configuration for MaxPacket size */
+      USBH_Modify_Channel (pdev,
+                           phost->Control.hc_num_out,
+                           0,
+                           0,
+                           0,
+                           phost->Control.ep0size);
+      
+      USBH_Modify_Channel (pdev,
+                           phost->Control.hc_num_in,
+                           0,
+                           0,
+                           0,
+                           phost->Control.ep0size);      
+    }
+    break;
+    
+  case ENUM_GET_FULL_DEV_DESC:  
+    /* Get FULL Device Desc  */
+    if ( USBH_Get_DevDesc(pdev, phost, USB_DEVICE_DESC_SIZE)\
+      == USBH_OK)
+    {
+      /* user callback for device descriptor available */
+      phost->usr_cb->DeviceDescAvailable(&phost->device_prop.Dev_Desc);      
+      phost->EnumState = ENUM_SET_ADDR;
+    }
+    break;
+   
+  case ENUM_SET_ADDR: 
+    /* set address */
+    if ( USBH_SetAddress(pdev, phost, USBH_DEVICE_ADDRESS) == USBH_OK)
+    {
+      USB_OTG_BSP_mDelay(2);
+      phost->device_prop.address = USBH_DEVICE_ADDRESS;
+      
+      /* user callback for device address assigned */
+      phost->usr_cb->DeviceAddressAssigned();
+      phost->EnumState = ENUM_GET_CFG_DESC;
+      
+      /* modify control channels to update device address */
+      USBH_Modify_Channel (pdev,
+                           phost->Control.hc_num_in,
+                           phost->device_prop.address,
+                           0,
+                           0,
+                           0);
+      
+      USBH_Modify_Channel (pdev,
+                           phost->Control.hc_num_out,
+                           phost->device_prop.address,
+                           0,
+                           0,
+                           0);         
+    }
+    break;
+    
+  case ENUM_GET_CFG_DESC:  
+    /* get standard configuration descriptor */
+    if ( USBH_Get_CfgDesc(pdev, 
+                          phost,
+                          USB_CONFIGURATION_DESC_SIZE) == USBH_OK)
+    {
+      phost->EnumState = ENUM_GET_FULL_CFG_DESC;
+    }
+    break;
+    
+  case ENUM_GET_FULL_CFG_DESC:  
+    /* get FULL config descriptor (config, interface, endpoints) */
+    if (USBH_Get_CfgDesc(pdev, 
+                         phost,
+                         phost->device_prop.Cfg_Desc.wTotalLength) == USBH_OK)
+    {
+      /* User callback for configuration descriptors available */
+      phost->usr_cb->ConfigurationDescAvailable(&phost->device_prop.Cfg_Desc,
+                                                      phost->device_prop.Itf_Desc,
+                                                      phost->device_prop.Ep_Desc[0]);
+      
+      phost->EnumState = ENUM_GET_MFC_STRING_DESC;
+    }
+    break;
+    
+  case ENUM_GET_MFC_STRING_DESC:  
+    if (phost->device_prop.Dev_Desc.iManufacturer != 0)
+    { /* Check that Manufacturer String is available */
+      
+      if ( USBH_Get_StringDesc(pdev,
+                               phost,
+                               phost->device_prop.Dev_Desc.iManufacturer, 
+                               Local_Buffer , 
+                               0xff) == USBH_OK)
+      {
+        /* User callback for Manufacturing string */
+        phost->usr_cb->ManufacturerString(Local_Buffer);
+        phost->EnumState = ENUM_GET_PRODUCT_STRING_DESC;
+      }
+    }
+    else
+    {
+      phost->usr_cb->ManufacturerString("N/A");      
+      phost->EnumState = ENUM_GET_PRODUCT_STRING_DESC;
+    }
+    break;
+    
+  case ENUM_GET_PRODUCT_STRING_DESC:   
+    if (phost->device_prop.Dev_Desc.iProduct != 0)
+    { /* Check that Product string is available */
+      if ( USBH_Get_StringDesc(pdev,
+                               phost,
+                               phost->device_prop.Dev_Desc.iProduct, 
+                               Local_Buffer, 
+                               0xff) == USBH_OK)
+      {
+        /* User callback for Product string */
+        phost->usr_cb->ProductString(Local_Buffer);
+        phost->EnumState = ENUM_GET_SERIALNUM_STRING_DESC;
+      }
+    }
+    else
+    {
+      phost->usr_cb->ProductString("N/A");
+      phost->EnumState = ENUM_GET_SERIALNUM_STRING_DESC;
+    } 
+    break;
+    
+  case ENUM_GET_SERIALNUM_STRING_DESC:   
+    if (phost->device_prop.Dev_Desc.iSerialNumber != 0)
+    { /* Check that Serial number string is available */    
+      if ( USBH_Get_StringDesc(pdev, 
+                               phost,
+                               phost->device_prop.Dev_Desc.iSerialNumber, 
+                               Local_Buffer, 
+                               0xff) == USBH_OK)
+      {
+        /* User callback for Serial number string */
+        phost->usr_cb->SerialNumString(Local_Buffer);
+        phost->EnumState = ENUM_SET_CONFIGURATION;
+      }
+    }
+    else
+    {
+      phost->usr_cb->SerialNumString("N/A");      
+      phost->EnumState = ENUM_SET_CONFIGURATION;
+    }  
+    break;
+      
+  case ENUM_SET_CONFIGURATION:
+    /* set configuration  (default config) */
+    if (USBH_SetCfg(pdev, 
+                    phost,
+                    phost->device_prop.Cfg_Desc.bConfigurationValue) == USBH_OK)
+    {
+      phost->EnumState = ENUM_DEV_CONFIGURED;
+    }
+    break;
+
+    
+  case ENUM_DEV_CONFIGURED:
+    /* user callback for enumeration done */
+    Status = USBH_OK;
+    break;
+    
+  default:
+    break;
+  }  
+  return Status;
+}
+
+
+/**
+  * @brief  USBH_HandleControl
+  *         Handles the USB control transfer state machine
+  * @param  pdev: Selected device
+  * @retval Status
+  */
+USBH_Status USBH_HandleControl (USB_OTG_CORE_HANDLE *pdev, USBH_HOST *phost)
+{
+  uint8_t direction;  
+  static uint16_t timeout = 0;
+  USBH_Status status = USBH_OK;
+  URB_STATE URB_Status = URB_IDLE;
+  
+  phost->Control.status = CTRL_START;
+
+  
+  switch (phost->Control.state)
+  {
+  case CTRL_SETUP:
+    /* send a SETUP packet */
+    USBH_CtlSendSetup     (pdev, 
+	                   phost->Control.setup.d8 , 
+	                   phost->Control.hc_num_out);  
+    phost->Control.state = CTRL_SETUP_WAIT;  
+    break; 
+    
+  case CTRL_SETUP_WAIT:
+    
+    URB_Status = HCD_GetURB_State(pdev , phost->Control.hc_num_out); 
+    /* case SETUP packet sent successfully */
+    if(URB_Status == URB_DONE)
+    { 
+      direction = (phost->Control.setup.b.bmRequestType & USB_REQ_DIR_MASK);
+      
+      /* check if there is a data stage */
+      if (phost->Control.setup.b.wLength.w != 0 )
+      {        
+        timeout = DATA_STAGE_TIMEOUT;
+        if (direction == USB_D2H)
+        {
+          /* Data Direction is IN */
+          phost->Control.state = CTRL_DATA_IN;
+        }
+        else
+        {
+          /* Data Direction is OUT */
+          phost->Control.state = CTRL_DATA_OUT;
+        } 
+      }
+      /* No DATA stage */
+      else
+      {
+        timeout = NODATA_STAGE_TIMEOUT;
+        
+        /* If there is No Data Transfer Stage */
+        if (direction == USB_D2H)
+        {
+          /* Data Direction is IN */
+          phost->Control.state = CTRL_STATUS_OUT;
+        }
+        else
+        {
+          /* Data Direction is OUT */
+          phost->Control.state = CTRL_STATUS_IN;
+        } 
+      }          
+      /* Set the delay timer to enable timeout for data stage completion */
+      phost->Control.timer = HCD_GetCurrentFrame(pdev);
+    }
+    else if(URB_Status == URB_ERROR)
+    {
+      phost->Control.state = CTRL_ERROR;     
+      phost->Control.status = CTRL_XACTERR;
+    }    
+    break;
+    
+  case CTRL_DATA_IN:  
+    /* Issue an IN token */ 
+    USBH_CtlReceiveData(pdev,
+                        phost->Control.buff, 
+                        phost->Control.length,
+                        phost->Control.hc_num_in);
+ 
+    phost->Control.state = CTRL_DATA_IN_WAIT;
+    break;    
+    
+  case CTRL_DATA_IN_WAIT:
+    
+    URB_Status = HCD_GetURB_State(pdev , phost->Control.hc_num_in); 
+    
+    /* check is DATA packet transfered successfully */
+    if  (URB_Status == URB_DONE)
+    { 
+      phost->Control.state = CTRL_STATUS_OUT;
+    }
+   
+    /* manage error cases*/
+    if  (URB_Status == URB_STALL) 
+    { 
+      /* In stall case, return to previous machine state*/
+      phost->gState =   phost->gStateBkp;
+    }   
+    else if (URB_Status == URB_ERROR)
+    {
+      /* Device error */
+      phost->Control.state = CTRL_ERROR;    
+    }
+    else if ((HCD_GetCurrentFrame(pdev)- phost->Control.timer) > timeout)
+    {
+      /* timeout for IN transfer */
+      phost->Control.state = CTRL_ERROR; 
+    }   
+    break;
+    
+  case CTRL_DATA_OUT:
+    /* Start DATA out transfer (only one DATA packet)*/
+    pdev->host.hc[phost->Control.hc_num_out].toggle_out = 1; 
+        
+    USBH_CtlSendData (pdev,
+                      phost->Control.buff, 
+                      phost->Control.length , 
+                      phost->Control.hc_num_out);
+    
+
+
+
+    
+    phost->Control.state = CTRL_DATA_OUT_WAIT;
+    break;
+    
+  case CTRL_DATA_OUT_WAIT:
+    
+    URB_Status = HCD_GetURB_State(pdev , phost->Control.hc_num_out);     
+    if  (URB_Status == URB_DONE)
+    { /* If the Setup Pkt is sent successful, then change the state */
+      phost->Control.state = CTRL_STATUS_IN;
+    }
+    
+    /* handle error cases */
+    else if  (URB_Status == URB_STALL) 
+    { 
+      /* In stall case, return to previous machine state*/
+      phost->gState =   phost->gStateBkp;
+      phost->Control.state = CTRL_STALLED;  
+    } 
+    else if  (URB_Status == URB_NOTREADY)
+    { 
+      /* Nack received from device */
+      phost->Control.state = CTRL_DATA_OUT;
+    }    
+    else if (URB_Status == URB_ERROR)
+    {
+      /* device error */
+      phost->Control.state = CTRL_ERROR;      
+    } 
+    break;
+    
+    
+  case CTRL_STATUS_IN:
+    /* Send 0 bytes out packet */
+    USBH_CtlReceiveData (pdev,
+                         0,
+                         0,
+                         phost->Control.hc_num_in);
+    
+    phost->Control.state = CTRL_STATUS_IN_WAIT;
+    
+    break;
+    
+  case CTRL_STATUS_IN_WAIT:
+    
+    URB_Status = HCD_GetURB_State(pdev , phost->Control.hc_num_in); 
+    
+    if  ( URB_Status == URB_DONE)
+    { /* Control transfers completed, Exit the State Machine */
+      phost->gState =   phost->gStateBkp;
+      phost->Control.state = CTRL_COMPLETE;
+    }
+    
+    else if (URB_Status == URB_ERROR)
+    {
+      phost->Control.state = CTRL_ERROR;  
+    }
+    
+    else if((HCD_GetCurrentFrame(pdev)\
+      - phost->Control.timer) > timeout)
+    {
+      phost->Control.state = CTRL_ERROR; 
+    }
+     else if(URB_Status == URB_STALL)
+    {
+      /* Control transfers completed, Exit the State Machine */
+      phost->gState =   phost->gStateBkp;
+      phost->Control.status = CTRL_STALL;
+      status = USBH_NOT_SUPPORTED;
+    }
+    break;
+    
+  case CTRL_STATUS_OUT:
+    pdev->host.hc[phost->Control.hc_num_out].toggle_out ^= 1; 
+    USBH_CtlSendData (pdev,
+                      0,
+                      0,
+                      phost->Control.hc_num_out);
+    
+    phost->Control.state = CTRL_STATUS_OUT_WAIT;
+    break;
+    
+  case CTRL_STATUS_OUT_WAIT: 
+    
+    URB_Status = HCD_GetURB_State(pdev , phost->Control.hc_num_out);  
+    if  (URB_Status == URB_DONE)
+    { 
+      phost->gState =   phost->gStateBkp; 
+      phost->Control.state = CTRL_COMPLETE; 
+    }
+    else if  (URB_Status == URB_NOTREADY)
+    { 
+      phost->Control.state = CTRL_STATUS_OUT;
+    }      
+    else if (URB_Status == URB_ERROR)
+    {
+      phost->Control.state = CTRL_ERROR;      
+    }
+    break;
+    
+  case CTRL_ERROR:
+    /* 
+    After a halt condition is encountered or an error is detected by the 
+    host, a control endpoint is allowed to recover by accepting the next Setup 
+    PID; i.e., recovery actions via some other pipe are not required for control
+    endpoints. For the Default Control Pipe, a device reset will ultimately be 
+    required to clear the halt or error condition if the next Setup PID is not 
+    accepted.
+    */
+    if (++ phost->Control.errorcount <= USBH_MAX_ERROR_COUNT)
+    {
+      /* Do the transmission again, starting from SETUP Packet */
+      phost->Control.state = CTRL_SETUP; 
+    }
+    else
+    {
+      phost->Control.status = CTRL_FAIL;
+      phost->gState =   phost->gStateBkp;
+      
+      status = USBH_FAIL;
+    }
+    break;
+    
+  default:
+    break;
+  }
+  return status;
+}
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/src/usbh_hcs.c
@@ -1,0 +1,259 @@
+/**
+  ******************************************************************************
+  * @file    usbh_hcs.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file implements functions for opening and closing host channels
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_hcs.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_HCS
+  * @brief This file includes opening and closing host channels
+  * @{
+  */ 
+
+/** @defgroup USBH_HCS_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_HCS_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_FunctionPrototypes
+  * @{
+  */ 
+static uint16_t USBH_GetFreeChannel (USB_OTG_CORE_HANDLE *pdev);
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_HCS_Private_Functions
+  * @{
+  */ 
+
+
+
+/**
+  * @brief  USBH_Open_Channel
+  *         Open a  pipe
+  * @param  pdev : Selected device
+  * @param  hc_num: Host channel Number
+  * @param  dev_address: USB Device address allocated to attached device
+  * @param  speed : USB device speed (Full/Low)
+  * @param  ep_type: end point type (Bulk/int/ctl)
+  * @param  mps: max pkt size
+  * @retval Status
+  */
+uint8_t USBH_Open_Channel  (USB_OTG_CORE_HANDLE *pdev,
+                            uint8_t hc_num,
+                            uint8_t dev_address,
+                            uint8_t speed,
+                            uint8_t ep_type,
+                            uint16_t mps)
+{
+
+  pdev->host.hc[hc_num].ep_num = pdev->host.channel[hc_num]& 0x7F;
+  pdev->host.hc[hc_num].ep_is_in = (pdev->host.channel[hc_num] & 0x80 ) == 0x80;  
+  pdev->host.hc[hc_num].dev_addr = dev_address;  
+  pdev->host.hc[hc_num].ep_type = ep_type;  
+  pdev->host.hc[hc_num].max_packet = mps; 
+  pdev->host.hc[hc_num].speed = speed; 
+  pdev->host.hc[hc_num].toggle_in = 0; 
+  pdev->host.hc[hc_num].toggle_out = 0;   
+  if(speed == HPRT0_PRTSPD_HIGH_SPEED)
+  {
+    pdev->host.hc[hc_num].do_ping = 1;
+  }
+  
+  USB_OTG_HC_Init(pdev, hc_num) ;
+  
+  return HC_OK; 
+
+}
+
+/**
+  * @brief  USBH_Modify_Channel
+  *         Modify a  pipe
+  * @param  pdev : Selected device
+  * @param  hc_num: Host channel Number
+  * @param  dev_address: USB Device address allocated to attached device
+  * @param  speed : USB device speed (Full/Low)
+  * @param  ep_type: end point type (Bulk/int/ctl)
+  * @param  mps: max pkt size
+  * @retval Status
+  */
+uint8_t USBH_Modify_Channel (USB_OTG_CORE_HANDLE *pdev,
+                            uint8_t hc_num,
+                            uint8_t dev_address,
+                            uint8_t speed,
+                            uint8_t ep_type,
+                            uint16_t mps)
+{
+  
+  if(dev_address != 0)
+  {
+    pdev->host.hc[hc_num].dev_addr = dev_address;  
+  }
+  
+  if((pdev->host.hc[hc_num].max_packet != mps) && (mps != 0))
+  {
+    pdev->host.hc[hc_num].max_packet = mps; 
+  }
+  
+  if((pdev->host.hc[hc_num].speed != speed ) && (speed != 0 )) 
+  {
+    pdev->host.hc[hc_num].speed = speed; 
+  }
+  
+  USB_OTG_HC_Init(pdev, hc_num);
+  return HC_OK; 
+
+}
+
+/**
+  * @brief  USBH_Alloc_Channel
+  *         Allocate a new channel for the pipe
+  * @param  ep_addr: End point for which the channel to be allocated
+  * @retval hc_num: Host channel number
+  */
+uint8_t USBH_Alloc_Channel  (USB_OTG_CORE_HANDLE *pdev, uint8_t ep_addr)
+{
+  uint16_t hc_num;
+  
+  hc_num =  USBH_GetFreeChannel(pdev);
+
+  if (hc_num != HC_ERROR)
+  {
+	pdev->host.channel[hc_num] = HC_USED | ep_addr;
+  }
+  return hc_num;
+}
+
+/**
+  * @brief  USBH_Free_Pipe
+  *         Free the USB host channel
+  * @param  idx: Channel number to be freed 
+  * @retval Status
+  */
+uint8_t USBH_Free_Channel  (USB_OTG_CORE_HANDLE *pdev, uint8_t idx)
+{
+   if(idx < HC_MAX)
+   {
+	 pdev->host.channel[idx] &= HC_USED_MASK;
+   }
+   return USBH_OK;
+}
+
+
+/**
+  * @brief  USBH_DeAllocate_AllChannel
+  *         Free all USB host channel
+* @param  pdev : core instance
+  * @retval Status
+  */
+uint8_t USBH_DeAllocate_AllChannel  (USB_OTG_CORE_HANDLE *pdev)
+{
+   uint8_t idx;
+   
+   for (idx = 2; idx < HC_MAX ; idx ++)
+   {
+	 pdev->host.channel[idx] = 0;
+   }
+   return USBH_OK;
+}
+
+/**
+  * @brief  USBH_GetFreeChannel
+  *         Get a free channel number for allocation to a device endpoint
+  * @param  None
+  * @retval idx: Free Channel number
+  */
+static uint16_t USBH_GetFreeChannel (USB_OTG_CORE_HANDLE *pdev)
+{
+  uint8_t idx = 0;
+  
+  for (idx = 0 ; idx < HC_MAX ; idx++)
+  {
+	if ((pdev->host.channel[idx] & HC_USED) == 0)
+	{
+	   return idx;
+	} 
+  }
+  return HC_ERROR;
+}
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/src/usbh_ioreq.c
@@ -1,0 +1,474 @@
+/** 
+  ******************************************************************************
+  * @file    usbh_ioreq.c 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file handles the issuing of the USB transactions
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+/* Includes ------------------------------------------------------------------*/
+
+#include "usbh_ioreq.h"
+
+/** @addtogroup USBH_LIB
+  * @{
+  */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+  
+/** @defgroup USBH_IOREQ 
+  * @brief This file handles the standard protocol processing (USB v2.0)
+  * @{
+  */
+
+
+/** @defgroup USBH_IOREQ_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+ 
+
+/** @defgroup USBH_IOREQ_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBH_IOREQ_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_IOREQ_Private_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_IOREQ_Private_FunctionPrototypes
+  * @{
+  */ 
+static USBH_Status USBH_SubmitSetupRequest(USBH_HOST *phost,
+                                           uint8_t* buff, 
+                                           uint16_t length);
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBH_IOREQ_Private_Functions
+  * @{
+  */ 
+
+
+/**
+  * @brief  USBH_CtlReq
+  *         USBH_CtlReq sends a control request and provide the status after 
+  *            completion of the request
+  * @param  pdev: Selected device
+  * @param  req: Setup Request Structure
+  * @param  buff: data buffer address to store the response
+  * @param  length: length of the response
+  * @retval Status
+  */
+USBH_Status USBH_CtlReq     (USB_OTG_CORE_HANDLE *pdev, 
+                             USBH_HOST           *phost, 
+                             uint8_t             *buff,
+                             uint16_t            length)
+{
+  USBH_Status status;
+  status = USBH_BUSY;
+  
+  switch (phost->RequestState)
+  {
+  case CMD_SEND:
+    /* Start a SETUP transfer */
+    USBH_SubmitSetupRequest(phost, buff, length);
+    phost->RequestState = CMD_WAIT;
+    status = USBH_BUSY;
+    break;
+    
+  case CMD_WAIT:
+     if (phost->Control.state == CTRL_COMPLETE ) 
+    {
+      /* Commands successfully sent and Response Received  */       
+      phost->RequestState = CMD_SEND;
+      phost->Control.state =CTRL_IDLE;  
+      status = USBH_OK;      
+    }
+    else if  (phost->Control.state == CTRL_ERROR)
+    {
+      /* Failure Mode */
+      phost->RequestState = CMD_SEND;
+      status = USBH_FAIL;
+    }   
+     else if  (phost->Control.state == CTRL_STALLED )
+    {
+      /* Commands successfully sent and Response Received  */       
+      phost->RequestState = CMD_SEND;
+      status = USBH_NOT_SUPPORTED;
+    }
+    break;
+    
+  default:
+    break; 
+  }
+  return status;
+}
+
+/**
+  * @brief  USBH_CtlSendSetup
+  *         Sends the Setup Packet to the Device
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer from which the Data will be send to Device
+  * @param  hc_num: Host channel Number
+  * @retval Status
+  */
+USBH_Status USBH_CtlSendSetup ( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint8_t hc_num){
+  pdev->host.hc[hc_num].ep_is_in = 0;
+  pdev->host.hc[hc_num].data_pid = HC_PID_SETUP;   
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = USBH_SETUP_PKT_SIZE;   
+
+  return (USBH_Status)HCD_SubmitRequest (pdev , hc_num);   
+}
+
+
+/**
+  * @brief  USBH_CtlSendData
+  *         Sends a data Packet to the Device
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer from which the Data will be sent to Device
+  * @param  length: Length of the data to be sent
+  * @param  hc_num: Host channel Number
+  * @retval Status
+  */
+USBH_Status USBH_CtlSendData ( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint16_t length,
+                                uint8_t hc_num)
+{
+  pdev->host.hc[hc_num].ep_is_in = 0;
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;
+ 
+  if ( length == 0 )
+  { /* For Status OUT stage, Length==0, Status Out PID = 1 */
+    pdev->host.hc[hc_num].toggle_out = 1;   
+  }
+ 
+ /* Set the Data Toggle bit as per the Flag */
+  if ( pdev->host.hc[hc_num].toggle_out == 0)
+  { /* Put the PID 0 */
+      pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;    
+  }
+ else
+ { /* Put the PID 1 */
+      pdev->host.hc[hc_num].data_pid = HC_PID_DATA1 ;
+ }
+
+  HCD_SubmitRequest (pdev , hc_num);   
+   
+  return USBH_OK;
+}
+
+
+/**
+  * @brief  USBH_CtlReceiveData
+  *         Receives the Device Response to the Setup Packet
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer in which the response needs to be copied
+  * @param  length: Length of the data to be received
+  * @param  hc_num: Host channel Number
+  * @retval Status. 
+  */
+USBH_Status USBH_CtlReceiveData(USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t* buff, 
+                                uint16_t length,
+                                uint8_t hc_num)
+{
+
+  pdev->host.hc[hc_num].ep_is_in = 1;
+  pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;  
+
+  HCD_SubmitRequest (pdev , hc_num);   
+  
+  return USBH_OK;
+  
+}
+
+
+/**
+  * @brief  USBH_BulkSendData
+  *         Sends the Bulk Packet to the device
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer from which the Data will be sent to Device
+  * @param  length: Length of the data to be sent
+  * @param  hc_num: Host channel Number
+  * @retval Status
+  */
+USBH_Status USBH_BulkSendData ( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint16_t length,
+                                uint8_t hc_num)
+{ 
+  pdev->host.hc[hc_num].ep_is_in = 0;
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;  
+
+ /* Set the Data Toggle bit as per the Flag */
+  if ( pdev->host.hc[hc_num].toggle_out == 0)
+  { /* Put the PID 0 */
+      pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;    
+  }
+ else
+ { /* Put the PID 1 */
+      pdev->host.hc[hc_num].data_pid = HC_PID_DATA1 ;
+ }
+
+  HCD_SubmitRequest (pdev , hc_num);   
+  return USBH_OK;
+}
+
+
+/**
+  * @brief  USBH_BulkReceiveData
+  *         Receives IN bulk packet from device
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer in which the received data packet to be copied
+  * @param  length: Length of the data to be received
+  * @param  hc_num: Host channel Number
+  * @retval Status. 
+  */
+USBH_Status USBH_BulkReceiveData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint16_t length,
+                                uint8_t hc_num)
+{
+  pdev->host.hc[hc_num].ep_is_in = 1;   
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;
+  
+
+  if( pdev->host.hc[hc_num].toggle_in == 0)
+  {
+    pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+  }
+  else
+  {
+    pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+  }
+
+  HCD_SubmitRequest (pdev , hc_num);  
+  return USBH_OK;
+}
+
+
+/**
+  * @brief  USBH_InterruptReceiveData
+  *         Receives the Device Response to the Interrupt IN token
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer in which the response needs to be copied
+  * @param  length: Length of the data to be received
+  * @param  hc_num: Host channel Number
+  * @retval Status. 
+  */
+USBH_Status USBH_InterruptReceiveData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint8_t length,
+                                uint8_t hc_num)
+{
+
+  pdev->host.hc[hc_num].ep_is_in = 1;  
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;
+  
+
+  
+  if(pdev->host.hc[hc_num].toggle_in == 0)
+  {
+    pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+  }
+  else
+  {
+    pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+  }
+
+  /* toggle DATA PID */
+  pdev->host.hc[hc_num].toggle_in ^= 1;  
+  
+  HCD_SubmitRequest (pdev , hc_num);  
+  
+  return USBH_OK;
+}
+
+/**
+  * @brief  USBH_InterruptSendData
+  *         Sends the data on Interrupt OUT Endpoint
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer from where the data needs to be copied
+  * @param  length: Length of the data to be sent
+  * @param  hc_num: Host channel Number
+  * @retval Status. 
+  */
+USBH_Status USBH_InterruptSendData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint8_t length,
+                                uint8_t hc_num)
+{
+
+  pdev->host.hc[hc_num].ep_is_in = 0;  
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;
+  
+  if(pdev->host.hc[hc_num].toggle_in == 0)
+  {
+    pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+  }
+  else
+  {
+    pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+  }
+
+  pdev->host.hc[hc_num].toggle_in ^= 1;  
+  
+  HCD_SubmitRequest (pdev , hc_num);  
+  
+  return USBH_OK;
+}
+
+
+/**
+  * @brief  USBH_SubmitSetupRequest
+  *         Start a setup transfer by changing the state-machine and 
+  *         initializing  the required variables needed for the Control Transfer
+  * @param  pdev: Selected device
+  * @param  setup: Setup Request Structure
+  * @param  buff: Buffer used for setup request
+  * @param  length: Length of the data
+  * @retval Status. 
+*/
+static USBH_Status USBH_SubmitSetupRequest(USBH_HOST *phost,
+                                           uint8_t* buff, 
+                                           uint16_t length)
+{
+  
+  /* Save Global State */
+  phost->gStateBkp =   phost->gState; 
+  
+  /* Prepare the Transactions */
+  phost->gState = HOST_CTRL_XFER;
+  phost->Control.buff = buff; 
+  phost->Control.length = length;
+  phost->Control.state = CTRL_SETUP;  
+
+  return USBH_OK;  
+}
+
+
+/**
+  * @brief  USBH_IsocReceiveData
+  *         Receives the Device Response to the Isochronous IN token
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer in which the response needs to be copied
+  * @param  length: Length of the data to be received
+  * @param  hc_num: Host channel Number
+  * @retval Status. 
+  */
+USBH_Status USBH_IsocReceiveData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint32_t length,
+                                uint8_t hc_num)
+{    
+  
+  pdev->host.hc[hc_num].ep_is_in = 1;  
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;
+  pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+  
+
+  HCD_SubmitRequest (pdev , hc_num);  
+  
+  return USBH_OK;
+}
+
+/**
+  * @brief  USBH_IsocSendData
+  *         Sends the data on Isochronous OUT Endpoint
+  * @param  pdev: Selected device
+  * @param  buff: Buffer pointer from where the data needs to be copied
+  * @param  length: Length of the data to be sent
+  * @param  hc_num: Host channel Number
+  * @retval Status. 
+  */
+USBH_Status USBH_IsocSendData( USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t *buff, 
+                                uint32_t length,
+                                uint8_t hc_num)
+{
+  
+  pdev->host.hc[hc_num].ep_is_in = 0;  
+  pdev->host.hc[hc_num].xfer_buff = buff;
+  pdev->host.hc[hc_num].xfer_len = length;
+  pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+  
+  HCD_SubmitRequest (pdev , hc_num);  
+  
+  return USBH_OK;
+}
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_host/Core/src/usbh_stdreq.c
@@ -1,0 +1,607 @@
+/**
+  ******************************************************************************
+  * @file    usbh_stdreq.c 
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file implements the standard requests for device enumeration
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+/* Includes ------------------------------------------------------------------*/
+
+#include "usbh_ioreq.h"
+#include "usbh_stdreq.h"
+
+/** @addtogroup USBH_LIB
+* @{
+*/
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+
+/** @defgroup USBH_STDREQ 
+* @brief This file implements the standard requests for device enumeration
+* @{
+*/
+
+
+/** @defgroup USBH_STDREQ_Private_Defines
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_STDREQ_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+
+/** @defgroup USBH_STDREQ_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_STDREQ_Private_Variables
+* @{
+*/
+/**
+* @}
+*/ 
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+    #pragma data_alignment=4   
+  #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t          USBH_CfgDesc[512] __ALIGN_END ;
+
+
+/** @defgroup USBH_STDREQ_Private_FunctionPrototypes
+* @{
+*/
+static void USBH_ParseDevDesc (USBH_DevDesc_TypeDef* , uint8_t *buf, uint16_t length);
+
+static void USBH_ParseCfgDesc (USBH_CfgDesc_TypeDef* cfg_desc,
+                               USBH_InterfaceDesc_TypeDef* itf_desc,
+                               USBH_EpDesc_TypeDef  ep_desc[][USBH_MAX_NUM_ENDPOINTS],                                                           
+                               uint8_t *buf, 
+                               uint16_t length);
+
+
+static void USBH_ParseInterfaceDesc (USBH_InterfaceDesc_TypeDef  *if_descriptor, uint8_t *buf);
+static void USBH_ParseEPDesc (USBH_EpDesc_TypeDef  *ep_descriptor, uint8_t *buf);
+
+static void USBH_ParseStringDesc (uint8_t* psrc, uint8_t* pdest, uint16_t length);
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBH_STDREQ_Private_Functions
+* @{
+*/ 
+
+
+/**
+* @brief  USBH_Get_DevDesc
+*         Issue Get Device Descriptor command to the device. Once the response 
+*         received, it parses the device descriptor and updates the status.
+* @param  pdev: Selected device
+* @param  dev_desc: Device Descriptor buffer address
+* @param  pdev->host.Rx_Buffer: Receive Buffer address
+* @param  length: Length of the descriptor
+* @retval Status
+*/
+USBH_Status USBH_Get_DevDesc(USB_OTG_CORE_HANDLE *pdev,
+                             USBH_HOST *phost,
+                             uint8_t length)
+{
+  
+  USBH_Status status;
+  
+  if((status = USBH_GetDescriptor(pdev, 
+                                  phost,
+                                  USB_REQ_RECIPIENT_DEVICE | USB_REQ_TYPE_STANDARD,                          
+                                  USB_DESC_DEVICE, 
+                                  pdev->host.Rx_Buffer,
+                                  length)) == USBH_OK)
+  {
+    /* Commands successfully sent and Response Received */       
+    USBH_ParseDevDesc(&phost->device_prop.Dev_Desc, pdev->host.Rx_Buffer, length);
+  }
+  return status;      
+}
+
+/**
+* @brief  USBH_Get_CfgDesc
+*         Issues Configuration Descriptor to the device. Once the response 
+*         received, it parses the configuartion descriptor and updates the 
+*         status.
+* @param  pdev: Selected device
+* @param  cfg_desc: Configuration Descriptor address
+* @param  itf_desc: Interface Descriptor address
+* @param  ep_desc: Endpoint Descriptor address
+* @param  length: Length of the descriptor
+* @retval Status
+*/
+USBH_Status USBH_Get_CfgDesc(USB_OTG_CORE_HANDLE *pdev, 
+                             USBH_HOST           *phost,                      
+                             uint16_t length)
+
+{
+  USBH_Status status;
+  uint16_t index = 0;
+  
+  if((status = USBH_GetDescriptor(pdev,
+                                  phost,
+                                  USB_REQ_RECIPIENT_DEVICE | USB_REQ_TYPE_STANDARD,                          
+                                  USB_DESC_CONFIGURATION, 
+                                  pdev->host.Rx_Buffer,
+                                  length)) == USBH_OK)
+  {
+    /*save Cfg descriptor for class parsing usage */
+    for( ; index < length ; index ++)
+    {
+      USBH_CfgDesc[index] = pdev->host.Rx_Buffer[index];
+    }
+    
+    /* Commands successfully sent and Response Received  */       
+    USBH_ParseCfgDesc (&phost->device_prop.Cfg_Desc,
+                       phost->device_prop.Itf_Desc,
+                       phost->device_prop.Ep_Desc, 
+                       pdev->host.Rx_Buffer,
+                       length); 
+    
+  }
+  return status;
+}
+
+
+/**
+* @brief  USBH_Get_StringDesc
+*         Issues string Descriptor command to the device. Once the response 
+*         received, it parses the string descriptor and updates the status.
+* @param  pdev: Selected device
+* @param  string_index: String index for the descriptor
+* @param  buff: Buffer address for the descriptor
+* @param  length: Length of the descriptor
+* @retval Status
+*/
+USBH_Status USBH_Get_StringDesc(USB_OTG_CORE_HANDLE *pdev,
+                                USBH_HOST *phost,
+                                uint8_t string_index, 
+                                uint8_t *buff, 
+                                uint16_t length)
+{
+  USBH_Status status;
+  
+  if((status = USBH_GetDescriptor(pdev,
+                                  phost,
+                                  USB_REQ_RECIPIENT_DEVICE | USB_REQ_TYPE_STANDARD,                                    
+                                  USB_DESC_STRING | string_index, 
+                                  pdev->host.Rx_Buffer,
+                                  length)) == USBH_OK)
+  {
+    /* Commands successfully sent and Response Received  */       
+    USBH_ParseStringDesc(pdev->host.Rx_Buffer,buff, length);    
+  }
+  return status;
+}
+
+/**
+* @brief  USBH_GetDescriptor
+*         Issues Descriptor command to the device. Once the response received,
+*         it parses the descriptor and updates the status.
+* @param  pdev: Selected device
+* @param  req_type: Descriptor type
+* @param  value_idx: wValue for the GetDescriptr request
+* @param  buff: Buffer to store the descriptor
+* @param  length: Length of the descriptor
+* @retval Status
+*/
+USBH_Status USBH_GetDescriptor(USB_OTG_CORE_HANDLE *pdev,
+                               USBH_HOST           *phost,                                
+                               uint8_t  req_type,
+                               uint16_t value_idx, 
+                               uint8_t* buff, 
+                               uint16_t length )
+{ 
+  phost->Control.setup.b.bmRequestType = USB_D2H | req_type;
+  phost->Control.setup.b.bRequest = USB_REQ_GET_DESCRIPTOR;
+  phost->Control.setup.b.wValue.w = value_idx;
+  
+  if ((value_idx & 0xff00) == USB_DESC_STRING)
+  {
+    phost->Control.setup.b.wIndex.w = 0x0409;
+  }
+  else
+  {
+    phost->Control.setup.b.wIndex.w = 0;
+  }
+  phost->Control.setup.b.wLength.w = length;           
+  return USBH_CtlReq(pdev, phost, buff , length );     
+}
+
+/**
+* @brief  USBH_SetAddress
+*         This command sets the address to the connected device
+* @param  pdev: Selected device
+* @param  DeviceAddress: Device address to assign
+* @retval Status
+*/
+USBH_Status USBH_SetAddress(USB_OTG_CORE_HANDLE *pdev, 
+                            USBH_HOST *phost,
+                            uint8_t DeviceAddress)
+{
+  phost->Control.setup.b.bmRequestType = USB_H2D | USB_REQ_RECIPIENT_DEVICE | \
+    USB_REQ_TYPE_STANDARD;
+  
+  phost->Control.setup.b.bRequest = USB_REQ_SET_ADDRESS;
+  
+  phost->Control.setup.b.wValue.w = (uint16_t)DeviceAddress;
+  phost->Control.setup.b.wIndex.w = 0;
+  phost->Control.setup.b.wLength.w = 0;
+  
+  return USBH_CtlReq(pdev, phost, 0 , 0 );
+}
+
+/**
+* @brief  USBH_SetCfg
+*         The command sets the configuration value to the connected device
+* @param  pdev: Selected device
+* @param  cfg_idx: Configuration value
+* @retval Status
+*/
+USBH_Status USBH_SetCfg(USB_OTG_CORE_HANDLE *pdev, 
+                        USBH_HOST *phost,
+                        uint16_t cfg_idx)
+{
+  
+  phost->Control.setup.b.bmRequestType = USB_H2D | USB_REQ_RECIPIENT_DEVICE |\
+    USB_REQ_TYPE_STANDARD;
+  phost->Control.setup.b.bRequest = USB_REQ_SET_CONFIGURATION;
+  phost->Control.setup.b.wValue.w = cfg_idx;
+  phost->Control.setup.b.wIndex.w = 0;
+  phost->Control.setup.b.wLength.w = 0;           
+  
+  return USBH_CtlReq(pdev, phost, 0 , 0 );      
+}
+
+/**
+* @brief  USBH_SetInterface
+*         The command sets the Interface value to the connected device
+* @param  pdev: Selected device
+* @param  itf_idx: Interface value
+* @retval Status
+*/
+USBH_Status USBH_SetInterface(USB_OTG_CORE_HANDLE *pdev, 
+                        USBH_HOST *phost,
+                        uint8_t ep_num, uint8_t altSetting)
+{
+  
+  
+  phost->Control.setup.b.bmRequestType = USB_H2D | USB_REQ_RECIPIENT_INTERFACE | \
+    USB_REQ_TYPE_STANDARD;
+  
+  phost->Control.setup.b.bRequest = USB_REQ_SET_INTERFACE;
+  phost->Control.setup.b.wValue.w = altSetting;
+  phost->Control.setup.b.wIndex.w = ep_num;
+  phost->Control.setup.b.wLength.w = 0;           
+ 
+  return USBH_CtlReq(pdev, phost, 0 , 0 );     
+}
+/**
+* @brief  USBH_ClrFeature
+*         This request is used to clear or disable a specific feature.
+
+* @param  pdev: Selected device
+* @param  ep_num: endpoint number 
+* @param  hc_num: Host channel number 
+* @retval Status
+*/
+USBH_Status USBH_ClrFeature(USB_OTG_CORE_HANDLE *pdev,
+                            USBH_HOST *phost,
+                            uint8_t ep_num, 
+                            uint8_t hc_num) 
+{
+  
+  phost->Control.setup.b.bmRequestType = USB_H2D | 
+                                         USB_REQ_RECIPIENT_ENDPOINT |
+                                         USB_REQ_TYPE_STANDARD;
+  
+  phost->Control.setup.b.bRequest = USB_REQ_CLEAR_FEATURE;
+  phost->Control.setup.b.wValue.w = FEATURE_SELECTOR_ENDPOINT;
+  phost->Control.setup.b.wIndex.w = ep_num;
+  phost->Control.setup.b.wLength.w = 0;           
+  
+  if ((ep_num & USB_REQ_DIR_MASK ) == USB_D2H)
+  { /* EP Type is IN */
+    pdev->host.hc[hc_num].toggle_in = 0; 
+  }
+  else
+  {/* EP Type is OUT */
+    pdev->host.hc[hc_num].toggle_out = 0; 
+  }
+  
+  return USBH_CtlReq(pdev, phost, 0 , 0 );   
+}
+
+/**
+* @brief  USBH_ParseDevDesc 
+*         This function Parses the device descriptor
+* @param  dev_desc: device_descriptor destinaton address 
+* @param  buf: Buffer where the source descriptor is available
+* @param  length: Length of the descriptor
+* @retval None
+*/
+static void  USBH_ParseDevDesc (USBH_DevDesc_TypeDef* dev_desc,
+                                uint8_t *buf, 
+                                uint16_t length)
+{
+  dev_desc->bLength            = *(uint8_t  *) (buf +  0);
+  dev_desc->bDescriptorType    = *(uint8_t  *) (buf +  1);
+  dev_desc->bcdUSB             = LE16 (buf +  2);
+  dev_desc->bDeviceClass       = *(uint8_t  *) (buf +  4);
+  dev_desc->bDeviceSubClass    = *(uint8_t  *) (buf +  5);
+  dev_desc->bDeviceProtocol    = *(uint8_t  *) (buf +  6);
+  dev_desc->bMaxPacketSize     = *(uint8_t  *) (buf +  7);
+  
+  if (length > 8)
+  { /* For 1st time after device connection, Host may issue only 8 bytes for 
+    Device Descriptor Length  */
+    dev_desc->idVendor           = LE16 (buf +  8);
+    dev_desc->idProduct          = LE16 (buf + 10);
+    dev_desc->bcdDevice          = LE16 (buf + 12);
+    dev_desc->iManufacturer      = *(uint8_t  *) (buf + 14);
+    dev_desc->iProduct           = *(uint8_t  *) (buf + 15);
+    dev_desc->iSerialNumber      = *(uint8_t  *) (buf + 16);
+    dev_desc->bNumConfigurations = *(uint8_t  *) (buf + 17);
+  }
+}
+
+/**
+* @brief  USBH_ParseCfgDesc 
+*         This function Parses the configuration descriptor
+* @param  cfg_desc: Configuration Descriptor address
+* @param  itf_desc: Interface Descriptor address
+* @param  ep_desc: Endpoint Descriptor address
+* @param  buf: Buffer where the source descriptor is available
+* @param  length: Length of the descriptor
+* @retval None
+*/
+static void  USBH_ParseCfgDesc (USBH_CfgDesc_TypeDef* cfg_desc,
+                                USBH_InterfaceDesc_TypeDef* itf_desc,
+                                USBH_EpDesc_TypeDef   ep_desc[][USBH_MAX_NUM_ENDPOINTS], 
+                                uint8_t *buf, 
+                                uint16_t length)
+{  
+  USBH_InterfaceDesc_TypeDef    *pif ;
+  USBH_InterfaceDesc_TypeDef    temp_pif ;  
+  USBH_EpDesc_TypeDef           *pep;  
+  USBH_DescHeader_t             *pdesc = (USBH_DescHeader_t *)buf;
+  uint16_t                      ptr;
+  int8_t                        if_ix = 0;
+  int8_t                        ep_ix = 0;  
+  static uint16_t               prev_ep_size = 0;
+  static uint8_t                prev_itf = 0;  
+  
+  
+  pdesc   = (USBH_DescHeader_t *)buf;
+  
+  /* Parse configuration descriptor */
+  cfg_desc->bLength             = *(uint8_t  *) (buf + 0);
+  cfg_desc->bDescriptorType     = *(uint8_t  *) (buf + 1);
+  cfg_desc->wTotalLength        = LE16 (buf + 2);
+  cfg_desc->bNumInterfaces      = *(uint8_t  *) (buf + 4);
+  cfg_desc->bConfigurationValue = *(uint8_t  *) (buf + 5);
+  cfg_desc->iConfiguration      = *(uint8_t  *) (buf + 6);
+  cfg_desc->bmAttributes        = *(uint8_t  *) (buf + 7);
+  cfg_desc->bMaxPower           = *(uint8_t  *) (buf + 8);    
+  
+  
+  if (length > USB_CONFIGURATION_DESC_SIZE)
+  {
+    ptr = USB_LEN_CFG_DESC;
+    
+    if ( cfg_desc->bNumInterfaces <= USBH_MAX_NUM_INTERFACES) 
+    {
+      pif = (USBH_InterfaceDesc_TypeDef *)0;
+      
+      while (ptr < cfg_desc->wTotalLength ) 
+      {
+        pdesc = USBH_GetNextDesc((uint8_t *)pdesc, &ptr);
+        if (pdesc->bDescriptorType   == USB_DESC_TYPE_INTERFACE) 
+        {
+          if_ix             = *(((uint8_t *)pdesc ) + 2);
+          pif               = &itf_desc[if_ix];
+          
+          if((*((uint8_t *)pdesc + 3)) < 3)
+          {
+          USBH_ParseInterfaceDesc (&temp_pif, (uint8_t *)pdesc);            
+          ep_ix = 0;
+          
+          /* Parse Ep descriptors relative to the current interface */
+          if(temp_pif.bNumEndpoints <= USBH_MAX_NUM_ENDPOINTS)
+          {          
+            while (ep_ix < temp_pif.bNumEndpoints) 
+            {
+              pdesc = USBH_GetNextDesc((void* )pdesc, &ptr);
+              if (pdesc->bDescriptorType   == USB_DESC_TYPE_ENDPOINT) 
+              {  
+                pep               = &ep_desc[if_ix][ep_ix];
+                
+                if(prev_itf != if_ix)
+                {
+                  prev_itf = if_ix;
+                  USBH_ParseInterfaceDesc (pif, (uint8_t *)&temp_pif); 
+                }
+                else
+                {
+                  if(prev_ep_size > LE16((uint8_t *)pdesc + 4))
+                  {
+                    break;
+                  }
+                  else
+                  {
+                    USBH_ParseInterfaceDesc (pif, (uint8_t *)&temp_pif);    
+                  }
+                }
+                USBH_ParseEPDesc (pep, (uint8_t *)pdesc);
+                prev_ep_size = LE16((uint8_t *)pdesc + 4);
+                ep_ix++;
+              }
+            }
+          }
+         }
+        }
+      }
+    }
+    prev_ep_size = 0;
+    prev_itf = 0; 
+  }  
+}
+
+
+/**
+* @brief  USBH_ParseInterfaceDesc 
+*         This function Parses the interface descriptor
+* @param  if_descriptor : Interface descriptor destination
+* @param  buf: Buffer where the descriptor data is available
+* @retval None
+*/
+static void  USBH_ParseInterfaceDesc (USBH_InterfaceDesc_TypeDef *if_descriptor, 
+                                      uint8_t *buf)
+{
+  if_descriptor->bLength            = *(uint8_t  *) (buf + 0);
+  if_descriptor->bDescriptorType    = *(uint8_t  *) (buf + 1);
+  if_descriptor->bInterfaceNumber   = *(uint8_t  *) (buf + 2);
+  if_descriptor->bAlternateSetting  = *(uint8_t  *) (buf + 3);
+  if_descriptor->bNumEndpoints      = *(uint8_t  *) (buf + 4);
+  if_descriptor->bInterfaceClass    = *(uint8_t  *) (buf + 5);
+  if_descriptor->bInterfaceSubClass = *(uint8_t  *) (buf + 6);
+  if_descriptor->bInterfaceProtocol = *(uint8_t  *) (buf + 7);
+  if_descriptor->iInterface         = *(uint8_t  *) (buf + 8);
+}
+
+/**
+* @brief  USBH_ParseEPDesc 
+*         This function Parses the endpoint descriptor
+* @param  ep_descriptor: Endpoint descriptor destination address
+* @param  buf: Buffer where the parsed descriptor stored
+* @retval None
+*/
+static void  USBH_ParseEPDesc (USBH_EpDesc_TypeDef  *ep_descriptor, 
+                               uint8_t *buf)
+{
+  
+  ep_descriptor->bLength          = *(uint8_t  *) (buf + 0);
+  ep_descriptor->bDescriptorType  = *(uint8_t  *) (buf + 1);
+  ep_descriptor->bEndpointAddress = *(uint8_t  *) (buf + 2);
+  ep_descriptor->bmAttributes     = *(uint8_t  *) (buf + 3);
+  ep_descriptor->wMaxPacketSize   = LE16 (buf + 4);
+  ep_descriptor->bInterval        = *(uint8_t  *) (buf + 6);
+}
+
+/**
+* @brief  USBH_ParseStringDesc 
+*         This function Parses the string descriptor
+* @param  psrc: Source pointer containing the descriptor data
+* @param  pdest: Destination address pointer
+* @param  length: Length of the descriptor
+* @retval None
+*/
+static void USBH_ParseStringDesc (uint8_t* psrc, 
+                                  uint8_t* pdest, 
+                                  uint16_t length)
+{
+  uint16_t strlength;
+  uint16_t idx;
+  
+  /* The UNICODE string descriptor is not NULL-terminated. The string length is
+  computed by substracting two from the value of the first byte of the descriptor.
+  */
+  
+  /* Check which is lower size, the Size of string or the length of bytes read 
+  from the device */
+  
+  if ( psrc[1] == USB_DESC_TYPE_STRING)
+  { /* Make sure the Descriptor is String Type */
+    
+    /* psrc[0] contains Size of Descriptor, subtract 2 to get the length of string */      
+    strlength = ( ( (psrc[0]-2) <= length) ? (psrc[0]-2) :length); 
+    psrc += 2; /* Adjust the offset ignoring the String Len and Descriptor type */
+    
+    for (idx = 0; idx < strlength; idx+=2 )
+    {/* Copy Only the string and ignore the UNICODE ID, hence add the src */
+      *pdest =  psrc[idx];
+      pdest++;
+    }  
+    *pdest = 0; /* mark end of string */  
+  }
+}
+
+/**
+* @brief  USBH_GetNextDesc 
+*         This function return the next descriptor header
+* @param  buf: Buffer where the cfg descriptor is available
+* @param  ptr: data popinter inside the cfg descriptor
+* @retval next header
+*/
+USBH_DescHeader_t  *USBH_GetNextDesc (uint8_t   *pbuf, uint16_t  *ptr)
+{
+  USBH_DescHeader_t  *pnext;
+ 
+  *ptr += ((USBH_DescHeader_t *)pbuf)->bLength;  
+  pnext = (USBH_DescHeader_t *)((uint8_t *)pbuf + \
+         ((USBH_DescHeader_t *)pbuf)->bLength);
+ 
+  return(pnext);
+}
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_bsp.h
@@ -1,0 +1,103 @@
+/**
+  ******************************************************************************
+  * @file    usb_bsp.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Specific api's relative to the used hardware platform
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_BSP__H__
+#define __USB_BSP__H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_core.h"
+#include "usb_conf.h"
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_BSP
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USB_BSP_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_BSP_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_BSP_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_BSP_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_BSP_Exported_FunctionsPrototype
+  * @{
+  */ 
+void BSP_Init(void);
+
+void USB_OTG_BSP_Init (USB_OTG_CORE_HANDLE *pdev);
+void USB_OTG_BSP_uDelay (const uint32_t usec);
+void USB_OTG_BSP_mDelay (const uint32_t msec);
+void USB_OTG_BSP_EnableInterrupt (USB_OTG_CORE_HANDLE *pdev);
+#ifdef USE_HOST_MODE
+void USB_OTG_BSP_ConfigVBUS(USB_OTG_CORE_HANDLE *pdev);
+void USB_OTG_BSP_DriveVBUS(USB_OTG_CORE_HANDLE *pdev,uint8_t state);
+#endif
+/**
+  * @}
+  */ 
+
+#endif //__USB_BSP__H__
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_core.h
@@ -1,0 +1,417 @@
+/**
+  ******************************************************************************
+  * @file    usb_core.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header of the Core Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_CORE_H__
+#define __USB_CORE_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+#include "usb_regs.h"
+#include "usb_defines.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_CORE
+  * @brief usb otg driver core layer
+  * @{
+  */ 
+
+
+/** @defgroup USB_CORE_Exported_Defines
+  * @{
+  */ 
+
+#define USB_OTG_EP0_IDLE                          0
+#define USB_OTG_EP0_SETUP                         1
+#define USB_OTG_EP0_DATA_IN                       2
+#define USB_OTG_EP0_DATA_OUT                      3
+#define USB_OTG_EP0_STATUS_IN                     4
+#define USB_OTG_EP0_STATUS_OUT                    5
+#define USB_OTG_EP0_STALL                         6
+
+#define USB_OTG_EP_TX_DIS       0x0000
+#define USB_OTG_EP_TX_STALL     0x0010
+#define USB_OTG_EP_TX_NAK       0x0020
+#define USB_OTG_EP_TX_VALID     0x0030
+ 
+#define USB_OTG_EP_RX_DIS       0x0000
+#define USB_OTG_EP_RX_STALL     0x1000
+#define USB_OTG_EP_RX_NAK       0x2000
+#define USB_OTG_EP_RX_VALID     0x3000
+/**
+  * @}
+  */ 
+#define   MAX_DATA_LENGTH                        0x200
+
+/** @defgroup USB_CORE_Exported_Types
+  * @{
+  */ 
+
+
+typedef enum {
+  USB_OTG_OK = 0,
+  USB_OTG_FAIL
+}USB_OTG_STS;
+
+typedef enum {
+  HC_IDLE = 0,
+  HC_XFRC,
+  HC_HALTED,
+  HC_NAK,
+  HC_NYET,
+  HC_STALL,
+  HC_XACTERR,  
+  HC_BBLERR,   
+  HC_DATATGLERR,  
+}HC_STATUS;
+
+typedef enum {
+  URB_IDLE = 0,
+  URB_DONE,
+  URB_NOTREADY,
+  URB_ERROR,
+  URB_STALL
+}URB_STATE;
+
+typedef enum {
+  CTRL_START = 0,
+  CTRL_XFRC,
+  CTRL_HALTED,
+  CTRL_NAK,
+  CTRL_STALL,
+  CTRL_XACTERR,  
+  CTRL_BBLERR,   
+  CTRL_DATATGLERR,  
+  CTRL_FAIL
+}CTRL_STATUS;
+
+
+typedef struct USB_OTG_hc
+{
+  uint8_t       dev_addr ;
+  uint8_t       ep_num;
+  uint8_t       ep_is_in;
+  uint8_t       speed;
+  uint8_t       do_ping;  
+  uint8_t       ep_type;
+  uint16_t      max_packet;
+  uint8_t       data_pid;
+  uint8_t       *xfer_buff;
+  uint32_t      xfer_len;
+  uint32_t      xfer_count;  
+  uint8_t       toggle_in;
+  uint8_t       toggle_out;
+  uint32_t       dma_addr;  
+}
+USB_OTG_HC , *PUSB_OTG_HC;
+
+typedef struct USB_OTG_ep
+{
+  uint8_t        num;
+  uint8_t        is_in;
+  uint8_t        is_stall;  
+  uint8_t        type;
+  uint8_t        data_pid_start;
+  uint8_t        even_odd_frame;
+  uint16_t       tx_fifo_num;
+  uint32_t       maxpacket;
+  /* transaction level variables*/
+  uint8_t        *xfer_buff;
+  uint32_t       dma_addr;  
+  uint32_t       xfer_len;
+  uint32_t       xfer_count;
+  /* Transfer level variables*/  
+  uint32_t       rem_data_len;
+  uint32_t       total_data_len;
+  uint32_t       ctl_data_len;  
+
+}
+
+USB_OTG_EP , *PUSB_OTG_EP;
+
+
+
+typedef struct USB_OTG_core_cfg
+{
+  uint8_t       host_channels;
+  uint8_t       dev_endpoints;
+  uint8_t       speed;
+  uint8_t       dma_enable;
+  uint16_t      mps;
+  uint16_t      TotalFifoSize;
+  uint8_t       phy_itface;
+  uint8_t       Sof_output;
+  uint8_t       low_power;
+  uint8_t       coreID;
+ 
+}
+USB_OTG_CORE_CFGS, *PUSB_OTG_CORE_CFGS;
+
+
+
+typedef  struct  usb_setup_req {
+    
+    uint8_t   bmRequest;                      
+    uint8_t   bRequest;                           
+    uint16_t  wValue;                             
+    uint16_t  wIndex;                             
+    uint16_t  wLength;                            
+} USB_SETUP_REQ;
+
+typedef struct _Device_TypeDef
+{
+  uint8_t  *(*GetDeviceDescriptor)( uint8_t speed , uint16_t *length);  
+  uint8_t  *(*GetLangIDStrDescriptor)( uint8_t speed , uint16_t *length); 
+  uint8_t  *(*GetManufacturerStrDescriptor)( uint8_t speed , uint16_t *length);  
+  uint8_t  *(*GetProductStrDescriptor)( uint8_t speed , uint16_t *length);  
+  uint8_t  *(*GetSerialStrDescriptor)( uint8_t speed , uint16_t *length);  
+  uint8_t  *(*GetConfigurationStrDescriptor)( uint8_t speed , uint16_t *length);  
+  uint8_t  *(*GetInterfaceStrDescriptor)( uint8_t speed , uint16_t *length);   
+} USBD_DEVICE, *pUSBD_DEVICE;
+
+//typedef struct USB_OTG_hPort
+//{
+//  void (*Disconnect) (void *phost);
+//  void (*Connect) (void *phost); 
+//  uint8_t ConnStatus;
+//  uint8_t DisconnStatus;
+//  uint8_t ConnHandled;
+//  uint8_t DisconnHandled;
+//} USB_OTG_hPort_TypeDef;
+
+typedef struct _Device_cb
+{
+  uint8_t  (*Init)         (void *pdev , uint8_t cfgidx);
+  uint8_t  (*DeInit)       (void *pdev , uint8_t cfgidx);
+ /* Control Endpoints*/
+  uint8_t  (*Setup)        (void *pdev , USB_SETUP_REQ  *req);  
+  uint8_t  (*EP0_TxSent)   (void *pdev );    
+  uint8_t  (*EP0_RxReady)  (void *pdev );  
+  /* Class Specific Endpoints*/
+  uint8_t  (*DataIn)       (void *pdev , uint8_t epnum);   
+  uint8_t  (*DataOut)      (void *pdev , uint8_t epnum); 
+  uint8_t  (*SOF)          (void *pdev); 
+  uint8_t  (*IsoINIncomplete)  (void *pdev); 
+  uint8_t  (*IsoOUTIncomplete)  (void *pdev);   
+
+  uint8_t  *(*GetConfigDescriptor)( uint8_t speed , uint16_t *length); 
+#ifdef USB_OTG_HS_CORE 
+  uint8_t  *(*GetOtherConfigDescriptor)( uint8_t speed , uint16_t *length);   
+#endif
+
+#ifdef USB_SUPPORT_USER_STRING_DESC 
+  uint8_t  *(*GetUsrStrDescriptor)( uint8_t speed ,uint8_t index,  uint16_t *length);   
+#endif  
+  
+} USBD_Class_cb_TypeDef;
+
+
+
+typedef struct _USBD_USR_PROP
+{
+  void (*Init)(void);   
+  void (*DeviceReset)(uint8_t speed); 
+  void (*DeviceConfigured)(void);
+  void (*DeviceSuspended)(void);
+  void (*DeviceResumed)(void);  
+  
+  void (*DeviceConnected)(void);  
+  void (*DeviceDisconnected)(void);    
+  
+}
+USBD_Usr_cb_TypeDef;
+
+typedef struct _DCD
+{
+  uint8_t        device_config;
+  uint8_t        device_state;
+  uint8_t        device_status;
+  uint8_t        device_old_status;
+  uint8_t        device_address;
+  uint8_t        connection_status;  
+  uint8_t        test_mode;
+  uint32_t       DevRemoteWakeup;
+  USB_OTG_EP     in_ep   [USB_OTG_MAX_TX_FIFOS];
+  USB_OTG_EP     out_ep  [USB_OTG_MAX_TX_FIFOS];
+  uint8_t        setup_packet [8*3];
+  USBD_Class_cb_TypeDef         *class_cb;
+  USBD_Usr_cb_TypeDef           *usr_cb;
+  USBD_DEVICE                   *usr_device;  
+  uint8_t        *pConfig_descriptor;
+ }
+DCD_DEV , *DCD_PDEV;
+
+
+typedef struct _HCD
+{
+  uint8_t                  Rx_Buffer [MAX_DATA_LENGTH];  
+  __IO uint32_t            ConnSts;
+  __IO uint32_t            ErrCnt[USB_OTG_MAX_TX_FIFOS];
+  __IO uint32_t            XferCnt[USB_OTG_MAX_TX_FIFOS];
+  __IO HC_STATUS           HC_Status[USB_OTG_MAX_TX_FIFOS];  
+  __IO URB_STATE           URB_State[USB_OTG_MAX_TX_FIFOS];
+  USB_OTG_HC               hc [USB_OTG_MAX_TX_FIFOS];
+  uint16_t                 channel [USB_OTG_MAX_TX_FIFOS];
+//  USB_OTG_hPort_TypeDef    *port_cb;  
+}
+HCD_DEV , *USB_OTG_USBH_PDEV;
+
+
+typedef struct _OTG
+{
+  uint8_t    OTG_State;
+  uint8_t    OTG_PrevState;  
+  uint8_t    OTG_Mode;    
+}
+OTG_DEV , *USB_OTG_USBO_PDEV;
+
+typedef struct USB_OTG_handle
+{
+  USB_OTG_CORE_CFGS    cfg;
+  USB_OTG_CORE_REGS    regs;
+#ifdef USE_DEVICE_MODE
+  DCD_DEV     dev;
+#endif
+#ifdef USE_HOST_MODE
+  HCD_DEV     host;
+#endif
+#ifdef USE_OTG_MODE
+  OTG_DEV     otg;
+#endif
+}
+USB_OTG_CORE_HANDLE , *PUSB_OTG_CORE_HANDLE;
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_CORE_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CORE_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+
+USB_OTG_STS  USB_OTG_CoreInit        (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_SelectCore      (USB_OTG_CORE_HANDLE *pdev, 
+                                      USB_OTG_CORE_ID_TypeDef coreID);
+USB_OTG_STS  USB_OTG_EnableGlobalInt (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_DisableGlobalInt(USB_OTG_CORE_HANDLE *pdev);
+void*           USB_OTG_ReadPacket   (USB_OTG_CORE_HANDLE *pdev ,
+    uint8_t *dest,
+    uint16_t len);
+USB_OTG_STS  USB_OTG_WritePacket     (USB_OTG_CORE_HANDLE *pdev ,
+    uint8_t *src,
+    uint8_t ch_ep_num,
+    uint16_t len);
+USB_OTG_STS  USB_OTG_FlushTxFifo     (USB_OTG_CORE_HANDLE *pdev , uint32_t num);
+USB_OTG_STS  USB_OTG_FlushRxFifo     (USB_OTG_CORE_HANDLE *pdev);
+
+uint32_t     USB_OTG_ReadCoreItr     (USB_OTG_CORE_HANDLE *pdev);
+uint32_t     USB_OTG_ReadOtgItr      (USB_OTG_CORE_HANDLE *pdev);
+uint8_t      USB_OTG_IsHostMode      (USB_OTG_CORE_HANDLE *pdev);
+uint8_t      USB_OTG_IsDeviceMode    (USB_OTG_CORE_HANDLE *pdev);
+uint32_t     USB_OTG_GetMode         (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_PhyInit         (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_SetCurrentMode  (USB_OTG_CORE_HANDLE *pdev,
+    uint8_t mode);
+
+/*********************** HOST APIs ********************************************/
+#ifdef USE_HOST_MODE
+USB_OTG_STS  USB_OTG_CoreInitHost    (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_EnableHostInt   (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_HC_Init         (USB_OTG_CORE_HANDLE *pdev, uint8_t hc_num);
+USB_OTG_STS  USB_OTG_HC_Halt         (USB_OTG_CORE_HANDLE *pdev, uint8_t hc_num);
+USB_OTG_STS  USB_OTG_HC_StartXfer    (USB_OTG_CORE_HANDLE *pdev, uint8_t hc_num);
+USB_OTG_STS  USB_OTG_HC_DoPing       (USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num);
+uint32_t     USB_OTG_ReadHostAllChannels_intr    (USB_OTG_CORE_HANDLE *pdev);
+uint32_t     USB_OTG_ResetPort       (USB_OTG_CORE_HANDLE *pdev);
+uint32_t     USB_OTG_ReadHPRT0       (USB_OTG_CORE_HANDLE *pdev);
+void         USB_OTG_DriveVbus       (USB_OTG_CORE_HANDLE *pdev, uint8_t state);
+void         USB_OTG_InitFSLSPClkSel (USB_OTG_CORE_HANDLE *pdev ,uint8_t freq);
+uint8_t      USB_OTG_IsEvenFrame     (USB_OTG_CORE_HANDLE *pdev) ;
+void         USB_OTG_StopHost        (USB_OTG_CORE_HANDLE *pdev);
+#endif
+/********************* DEVICE APIs ********************************************/
+#ifdef USE_DEVICE_MODE
+USB_OTG_STS  USB_OTG_CoreInitDev         (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_EnableDevInt        (USB_OTG_CORE_HANDLE *pdev);
+uint32_t     USB_OTG_ReadDevAllInEPItr           (USB_OTG_CORE_HANDLE *pdev);
+enum USB_OTG_SPEED USB_OTG_GetDeviceSpeed (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_EP0Activate (USB_OTG_CORE_HANDLE *pdev);
+USB_OTG_STS  USB_OTG_EPActivate  (USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep);
+USB_OTG_STS  USB_OTG_EPDeactivate(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep);
+USB_OTG_STS  USB_OTG_EPStartXfer (USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep);
+USB_OTG_STS  USB_OTG_EP0StartXfer(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep);
+USB_OTG_STS  USB_OTG_EPSetStall          (USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep);
+USB_OTG_STS  USB_OTG_EPClearStall        (USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep);
+uint32_t     USB_OTG_ReadDevAllOutEp_itr (USB_OTG_CORE_HANDLE *pdev);
+uint32_t     USB_OTG_ReadDevOutEP_itr    (USB_OTG_CORE_HANDLE *pdev , uint8_t epnum);
+uint32_t     USB_OTG_ReadDevAllInEPItr   (USB_OTG_CORE_HANDLE *pdev);
+void         USB_OTG_InitDevSpeed        (USB_OTG_CORE_HANDLE *pdev , uint8_t speed);
+uint8_t      USBH_IsEvenFrame (USB_OTG_CORE_HANDLE *pdev);
+void         USB_OTG_EP0_OutStart(USB_OTG_CORE_HANDLE *pdev);
+void         USB_OTG_ActiveRemoteWakeup(USB_OTG_CORE_HANDLE *pdev);
+void         USB_OTG_UngateClock(USB_OTG_CORE_HANDLE *pdev);
+void         USB_OTG_StopDevice(USB_OTG_CORE_HANDLE *pdev);
+void         USB_OTG_SetEPStatus (USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep , uint32_t Status);
+uint32_t     USB_OTG_GetEPStatus(USB_OTG_CORE_HANDLE *pdev ,USB_OTG_EP *ep);
+#endif
+/**
+  * @}
+  */ 
+
+#endif  /* __USB_CORE_H__ */
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_dcd.h
@@ -1,0 +1,164 @@
+/**
+  ******************************************************************************
+  * @file    usb_dcd.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Peripheral Driver Header file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __DCD_H__
+#define __DCD_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_core.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+* @{
+*/
+
+/** @defgroup USB_DCD
+* @brief This file is the 
+* @{
+*/ 
+
+
+/** @defgroup USB_DCD_Exported_Defines
+* @{
+*/ 
+#define USB_OTG_EP_CONTROL                       0
+#define USB_OTG_EP_ISOC                          1
+#define USB_OTG_EP_BULK                          2
+#define USB_OTG_EP_INT                           3
+#define USB_OTG_EP_MASK                          3
+
+/*  Device Status */
+#define USB_OTG_DEFAULT                          1
+#define USB_OTG_ADDRESSED                        2
+#define USB_OTG_CONFIGURED                       3
+#define USB_OTG_SUSPENDED                        4
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_Exported_Types
+* @{
+*/ 
+/********************************************************************************
+Data structure type
+********************************************************************************/
+typedef struct
+{
+  uint8_t  bLength;
+  uint8_t  bDescriptorType;
+  uint8_t  bEndpointAddress;
+  uint8_t  bmAttributes;
+  uint16_t wMaxPacketSize;
+  uint8_t  bInterval;
+}
+EP_DESCRIPTOR , *PEP_DESCRIPTOR;
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_Exported_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+/** @defgroup USB_DCD_Exported_Variables
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+/** @defgroup USB_DCD_Exported_FunctionsPrototype
+* @{
+*/ 
+/********************************************************************************
+EXPORTED FUNCTION FROM THE USB-OTG LAYER
+********************************************************************************/
+void       DCD_Init(USB_OTG_CORE_HANDLE *pdev ,
+                    USB_OTG_CORE_ID_TypeDef coreID);
+
+void        DCD_DevConnect (USB_OTG_CORE_HANDLE *pdev);
+void        DCD_DevDisconnect (USB_OTG_CORE_HANDLE *pdev);
+void        DCD_EP_SetAddress (USB_OTG_CORE_HANDLE *pdev,
+                               uint8_t address);
+uint32_t    DCD_EP_Open(USB_OTG_CORE_HANDLE *pdev , 
+                     uint8_t ep_addr,
+                     uint16_t ep_mps,
+                     uint8_t ep_type);
+
+uint32_t    DCD_EP_Close  (USB_OTG_CORE_HANDLE *pdev,
+                                uint8_t  ep_addr);
+
+
+uint32_t   DCD_EP_PrepareRx ( USB_OTG_CORE_HANDLE *pdev,
+                        uint8_t   ep_addr,                                  
+                        uint8_t *pbuf,                                  
+                        uint16_t  buf_len);
+  
+uint32_t    DCD_EP_Tx (USB_OTG_CORE_HANDLE *pdev,
+                               uint8_t  ep_addr,
+                               uint8_t  *pbuf,
+                               uint32_t   buf_len);
+uint32_t    DCD_EP_Stall (USB_OTG_CORE_HANDLE *pdev,
+                              uint8_t   epnum);
+uint32_t    DCD_EP_ClrStall (USB_OTG_CORE_HANDLE *pdev,
+                                  uint8_t epnum);
+uint32_t    DCD_EP_Flush (USB_OTG_CORE_HANDLE *pdev,
+                               uint8_t epnum);
+uint32_t    DCD_Handle_ISR(USB_OTG_CORE_HANDLE *pdev);
+
+uint32_t DCD_GetEPStatus(USB_OTG_CORE_HANDLE *pdev ,
+                         uint8_t epnum);
+
+void DCD_SetEPStatus (USB_OTG_CORE_HANDLE *pdev , 
+                      uint8_t epnum , 
+                      uint32_t Status);
+
+/**
+* @}
+*/ 
+
+
+#endif //__DCD_H__
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_dcd_int.h
@@ -1,0 +1,127 @@
+/**
+  ******************************************************************************
+  * @file    usb_dcd_int.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Peripheral Device Interface Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef USB_DCD_INT_H__
+#define USB_DCD_INT_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_dcd.h"
+
+
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_DCD_INT
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USB_DCD_INT_Exported_Defines
+  * @{
+  */ 
+
+typedef struct _USBD_DCD_INT
+{
+  uint8_t (* DataOutStage) (USB_OTG_CORE_HANDLE *pdev , uint8_t epnum);
+  uint8_t (* DataInStage)  (USB_OTG_CORE_HANDLE *pdev , uint8_t epnum);
+  uint8_t (* SetupStage) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* SOF) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* Reset) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* Suspend) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* Resume) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* IsoINIncomplete) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* IsoOUTIncomplete) (USB_OTG_CORE_HANDLE *pdev);  
+  
+  uint8_t (* DevConnected) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* DevDisconnected) (USB_OTG_CORE_HANDLE *pdev);   
+  
+}USBD_DCD_INT_cb_TypeDef;
+
+extern USBD_DCD_INT_cb_TypeDef *USBD_DCD_INT_fops;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_DCD_INT_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_DCD_INT_Exported_Macros
+  * @{
+  */ 
+
+#define CLEAR_IN_EP_INTR(epnum,intr) \
+  diepint.d32=0; \
+  diepint.b.intr = 1; \
+  USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[epnum]->DIEPINT,diepint.d32);
+
+#define CLEAR_OUT_EP_INTR(epnum,intr) \
+  doepint.d32=0; \
+  doepint.b.intr = 1; \
+  USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[epnum]->DOEPINT,doepint.d32);
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_DCD_INT_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_DCD_INT_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+uint32_t USBD_OTG_ISR_Handler (USB_OTG_CORE_HANDLE *pdev);
+
+/**
+  * @}
+  */ 
+
+
+#endif // USB_DCD_INT_H__
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_defines.h
@@ -1,0 +1,249 @@
+/**
+  ******************************************************************************
+  * @file    usb_defines.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Header of the Core Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_DEF_H__
+#define __USB_DEF_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include  "usb_conf.h"
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_DEFINES
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USB_DEFINES_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup _CORE_DEFINES_
+  * @{
+  */
+
+#define USB_OTG_SPEED_PARAM_HIGH 0
+#define USB_OTG_SPEED_PARAM_HIGH_IN_FULL 1
+#define USB_OTG_SPEED_PARAM_FULL 3
+
+#define USB_OTG_SPEED_HIGH      0
+#define USB_OTG_SPEED_FULL      1
+
+#define USB_OTG_ULPI_PHY      1
+#define USB_OTG_EMBEDDED_PHY  2
+
+/**
+  * @}
+  */
+
+
+/** @defgroup _GLOBAL_DEFINES_
+  * @{
+  */
+#define GAHBCFG_TXFEMPTYLVL_EMPTY              1
+#define GAHBCFG_TXFEMPTYLVL_HALFEMPTY          0
+#define GAHBCFG_GLBINT_ENABLE                  1
+#define GAHBCFG_INT_DMA_BURST_SINGLE           0
+#define GAHBCFG_INT_DMA_BURST_INCR             1
+#define GAHBCFG_INT_DMA_BURST_INCR4            3
+#define GAHBCFG_INT_DMA_BURST_INCR8            5
+#define GAHBCFG_INT_DMA_BURST_INCR16           7
+#define GAHBCFG_DMAENABLE                      1
+#define GAHBCFG_TXFEMPTYLVL_EMPTY              1
+#define GAHBCFG_TXFEMPTYLVL_HALFEMPTY          0
+#define GRXSTS_PKTSTS_IN                       2
+#define GRXSTS_PKTSTS_IN_XFER_COMP             3
+#define GRXSTS_PKTSTS_DATA_TOGGLE_ERR          5
+#define GRXSTS_PKTSTS_CH_HALTED                7
+/**
+  * @}
+  */
+
+
+/** @defgroup _OnTheGo_DEFINES_
+  * @{
+  */
+#define MODE_HNP_SRP_CAPABLE                   0
+#define MODE_SRP_ONLY_CAPABLE                  1
+#define MODE_NO_HNP_SRP_CAPABLE                2
+#define MODE_SRP_CAPABLE_DEVICE                3
+#define MODE_NO_SRP_CAPABLE_DEVICE             4
+#define MODE_SRP_CAPABLE_HOST                  5
+#define MODE_NO_SRP_CAPABLE_HOST               6
+#define A_HOST                                 1
+#define A_SUSPEND                              2
+#define A_PERIPHERAL                           3
+#define B_PERIPHERAL                           4
+#define B_HOST                                 5
+#define DEVICE_MODE                            0
+#define HOST_MODE                              1
+#define OTG_MODE                               2
+/**
+  * @}
+  */
+
+
+/** @defgroup __DEVICE_DEFINES_
+  * @{
+  */
+#define DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ     0
+#define DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ     1
+#define DSTS_ENUMSPD_LS_PHY_6MHZ               2
+#define DSTS_ENUMSPD_FS_PHY_48MHZ              3
+
+#define DCFG_FRAME_INTERVAL_80                 0
+#define DCFG_FRAME_INTERVAL_85                 1
+#define DCFG_FRAME_INTERVAL_90                 2
+#define DCFG_FRAME_INTERVAL_95                 3
+
+#define DEP0CTL_MPS_64                         0
+#define DEP0CTL_MPS_32                         1
+#define DEP0CTL_MPS_16                         2
+#define DEP0CTL_MPS_8                          3
+
+#define EP_SPEED_LOW                           0
+#define EP_SPEED_FULL                          1
+#define EP_SPEED_HIGH                          2
+
+#define EP_TYPE_CTRL                           0
+#define EP_TYPE_ISOC                           1
+#define EP_TYPE_BULK                           2
+#define EP_TYPE_INTR                           3
+#define EP_TYPE_MSK                            3
+
+#define STS_GOUT_NAK                           1
+#define STS_DATA_UPDT                          2
+#define STS_XFER_COMP                          3
+#define STS_SETUP_COMP                         4
+#define STS_SETUP_UPDT                         6
+/**
+  * @}
+  */
+
+
+/** @defgroup __HOST_DEFINES_
+  * @{
+  */
+#define HC_PID_DATA0                           0
+#define HC_PID_DATA2                           1
+#define HC_PID_DATA1                           2
+#define HC_PID_SETUP                           3
+
+#define HPRT0_PRTSPD_HIGH_SPEED                0
+#define HPRT0_PRTSPD_FULL_SPEED                1
+#define HPRT0_PRTSPD_LOW_SPEED                 2
+
+#define HCFG_30_60_MHZ                         0
+#define HCFG_48_MHZ                            1
+#define HCFG_6_MHZ                             2
+
+#define HCCHAR_CTRL                            0
+#define HCCHAR_ISOC                            1
+#define HCCHAR_BULK                            2
+#define HCCHAR_INTR                            3
+
+#define  MIN(a, b)      (((a) < (b)) ? (a) : (b))
+
+/**
+  * @}
+  */
+
+
+/** @defgroup USB_DEFINES_Exported_Types
+  * @{
+  */ 
+
+typedef enum
+{
+  USB_OTG_HS_CORE_ID = 0,
+  USB_OTG_FS_CORE_ID = 1
+}USB_OTG_CORE_ID_TypeDef;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_DEFINES_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_DEFINES_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_DEFINES_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup Internal_Macro's
+  * @{
+  */
+#define USB_OTG_READ_REG32(reg)  (*(__IO uint32_t *)reg)
+#define USB_OTG_WRITE_REG32(reg,value) (*(__IO uint32_t *)reg = value)
+#define USB_OTG_MODIFY_REG32(reg,clear_mask,set_mask) \
+  USB_OTG_WRITE_REG32(reg, (((USB_OTG_READ_REG32(reg)) & ~clear_mask) | set_mask ) )
+
+/********************************************************************************
+                              ENUMERATION TYPE
+********************************************************************************/
+enum USB_OTG_SPEED {
+  USB_SPEED_UNKNOWN = 0,
+  USB_SPEED_LOW,
+  USB_SPEED_FULL,
+  USB_SPEED_HIGH
+};
+
+#endif //__USB_DEFINES__H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_hcd.h
@@ -1,0 +1,108 @@
+/**
+  ******************************************************************************
+  * @file    usb_hcd.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Host layer Header file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_HCD_H__
+#define __USB_HCD_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_regs.h"
+#include "usb_core.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_HCD
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USB_HCD_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_HCD_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_HCD_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_HCD_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_HCD_Exported_FunctionsPrototype
+  * @{
+  */ 
+uint32_t  HCD_Init                 (USB_OTG_CORE_HANDLE *pdev ,
+                                    USB_OTG_CORE_ID_TypeDef coreID);
+uint32_t  HCD_HC_Init              (USB_OTG_CORE_HANDLE *pdev , 
+                                    uint8_t hc_num); 
+uint32_t  HCD_SubmitRequest        (USB_OTG_CORE_HANDLE *pdev , 
+                                    uint8_t hc_num) ;
+uint32_t  HCD_GetCurrentSpeed      (USB_OTG_CORE_HANDLE *pdev);
+uint32_t  HCD_ResetPort            (USB_OTG_CORE_HANDLE *pdev);
+uint32_t  HCD_IsDeviceConnected    (USB_OTG_CORE_HANDLE *pdev);
+uint32_t  HCD_GetCurrentFrame      (USB_OTG_CORE_HANDLE *pdev) ;
+URB_STATE HCD_GetURB_State         (USB_OTG_CORE_HANDLE *pdev,  uint8_t ch_num); 
+uint32_t  HCD_GetXferCnt           (USB_OTG_CORE_HANDLE *pdev,  uint8_t ch_num); 
+HC_STATUS HCD_GetHCState           (USB_OTG_CORE_HANDLE *pdev,  uint8_t ch_num) ;
+/**
+  * @}
+  */ 
+
+#endif //__USB_HCD_H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_hcd_int.h
@@ -1,0 +1,141 @@
+/**
+  ******************************************************************************
+  * @file    usb_hcd_int.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Peripheral Device Interface Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __HCD_INT_H__
+#define __HCD_INT_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_hcd.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_HCD_INT
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USB_HCD_INT_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_HCD_INT_Exported_Types
+  * @{
+  */ 
+
+typedef struct _USBH_HCD_INT
+{
+  uint8_t (* SOF) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* DevConnected) (USB_OTG_CORE_HANDLE *pdev);
+  uint8_t (* DevDisconnected) (USB_OTG_CORE_HANDLE *pdev);   
+  
+}USBH_HCD_INT_cb_TypeDef;
+
+extern USBH_HCD_INT_cb_TypeDef *USBH_HCD_INT_fops;
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_HCD_INT_Exported_Macros
+  * @{
+  */ 
+
+#define CLEAR_HC_INT(HC_REGS, intr) \
+  {\
+  USB_OTG_HCINTn_TypeDef  hcint_clear; \
+  hcint_clear.d32 = 0; \
+  hcint_clear.b.intr = 1; \
+  USB_OTG_WRITE_REG32(&((HC_REGS)->HCINT), hcint_clear.d32);\
+  }\
+
+#define MASK_HOST_INT_CHH(hc_num) { USB_OTG_HCINTMSK_TypeDef  INTMSK; \
+    INTMSK.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK); \
+    INTMSK.b.chhltd = 0; \
+    USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK, INTMSK.d32);}
+
+#define UNMASK_HOST_INT_CHH(hc_num) { USB_OTG_HCINTMSK_TypeDef  INTMSK; \
+    INTMSK.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK); \
+    INTMSK.b.chhltd = 1; \
+    USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK, INTMSK.d32);}
+
+#define MASK_HOST_INT_ACK(hc_num) { USB_OTG_HCINTMSK_TypeDef  INTMSK; \
+    INTMSK.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK); \
+    INTMSK.b.ack = 0; \
+    USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK, GINTMSK.d32);}
+
+#define UNMASK_HOST_INT_ACK(hc_num) { USB_OTG_HCGINTMSK_TypeDef  INTMSK; \
+    INTMSK.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK); \
+    INTMSK.b.ack = 1; \
+    USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK, INTMSK.d32);}
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_HCD_INT_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_HCD_INT_Exported_FunctionsPrototype
+  * @{
+  */ 
+/* Callbacks handler */
+void ConnectCallback_Handler(USB_OTG_CORE_HANDLE *pdev);
+void Disconnect_Callback_Handler(USB_OTG_CORE_HANDLE *pdev);
+void Overcurrent_Callback_Handler(USB_OTG_CORE_HANDLE *pdev);
+uint32_t USBH_OTG_ISR_Handler (USB_OTG_CORE_HANDLE *pdev);
+
+/**
+  * @}
+  */ 
+
+
+
+#endif //__HCD_INT_H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_otg.h
@@ -1,0 +1,99 @@
+/**
+  ******************************************************************************
+  * @file    usb_otg.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   OTG Core Header
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_OTG__
+#define __USB_OTG__
+
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_OTG
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USB_OTG_Exported_Defines
+  * @{
+  */ 
+
+
+void USB_OTG_InitiateSRP(void);
+void USB_OTG_InitiateHNP(uint8_t state , uint8_t mode);
+void USB_OTG_Switchback (USB_OTG_CORE_HANDLE *pdev);
+uint32_t  USB_OTG_GetCurrentState (USB_OTG_CORE_HANDLE *pdev);
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_OTG_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_OTG_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_OTG_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_OTG_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+#endif //__USB_OTG__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/inc/usb_regs.h
@@ -1,0 +1,1188 @@
+/**
+  ******************************************************************************
+  * @file    usb_regs.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   hardware registers
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_OTG_REGS_H__
+#define __USB_OTG_REGS_H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_REGS
+  * @brief This file is the 
+  * @{
+  */ 
+
+
+/** @defgroup USB_REGS_Exported_Defines
+  * @{
+  */ 
+
+#define USB_OTG_HS_BASE_ADDR                 0x40040000
+#define USB_OTG_FS_BASE_ADDR                 0x50000000
+
+#define USB_OTG_CORE_GLOBAL_REGS_OFFSET      0x000
+#define USB_OTG_DEV_GLOBAL_REG_OFFSET        0x800
+#define USB_OTG_DEV_IN_EP_REG_OFFSET         0x900
+#define USB_OTG_EP_REG_OFFSET                0x20
+#define USB_OTG_DEV_OUT_EP_REG_OFFSET        0xB00
+#define USB_OTG_HOST_GLOBAL_REG_OFFSET       0x400
+#define USB_OTG_HOST_PORT_REGS_OFFSET        0x440
+#define USB_OTG_HOST_CHAN_REGS_OFFSET        0x500
+#define USB_OTG_CHAN_REGS_OFFSET             0x20
+#define USB_OTG_PCGCCTL_OFFSET               0xE00
+#define USB_OTG_DATA_FIFO_OFFSET             0x1000
+#define USB_OTG_DATA_FIFO_SIZE               0x1000
+
+
+#define USB_OTG_MAX_TX_FIFOS                 15
+
+#define USB_OTG_HS_MAX_PACKET_SIZE           512
+#define USB_OTG_FS_MAX_PACKET_SIZE           64
+#define USB_OTG_MAX_EP0_SIZE                 64
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_REGS_Exported_Types
+  * @{
+  */ 
+
+/** @defgroup __USB_OTG_Core_register
+  * @{
+  */
+typedef struct _USB_OTG_GREGS  //000h
+{
+  __IO uint32_t GOTGCTL;      /* USB_OTG Control and Status Register    000h*/
+  __IO uint32_t GOTGINT;      /* USB_OTG Interrupt Register             004h*/
+  __IO uint32_t GAHBCFG;      /* Core AHB Configuration Register    008h*/
+  __IO uint32_t GUSBCFG;      /* Core USB Configuration Register    00Ch*/
+  __IO uint32_t GRSTCTL;      /* Core Reset Register                010h*/
+  __IO uint32_t GINTSTS;      /* Core Interrupt Register            014h*/
+  __IO uint32_t GINTMSK;      /* Core Interrupt Mask Register       018h*/
+  __IO uint32_t GRXSTSR;      /* Receive Sts Q Read Register        01Ch*/
+  __IO uint32_t GRXSTSP;      /* Receive Sts Q Read & POP Register  020h*/
+  __IO uint32_t GRXFSIZ;      /* Receive FIFO Size Register         024h*/
+  __IO uint32_t DIEPTXF0_HNPTXFSIZ;   /* EP0 / Non Periodic Tx FIFO Size Register 028h*/
+  __IO uint32_t HNPTXSTS;     /* Non Periodic Tx FIFO/Queue Sts reg 02Ch*/
+  uint32_t Reserved30[2];     /* Reserved                           030h*/
+  __IO uint32_t GCCFG;        /* General Purpose IO Register        038h*/
+  __IO uint32_t CID;          /* User ID Register                   03Ch*/
+  uint32_t  Reserved40[48];   /* Reserved                      040h-0FFh*/
+  __IO uint32_t HPTXFSIZ; /* Host Periodic Tx FIFO Size Reg     100h*/
+  __IO uint32_t DIEPTXF[USB_OTG_MAX_TX_FIFOS];/* dev Periodic Transmit FIFO */
+}
+USB_OTG_GREGS;
+/**
+  * @}
+  */
+
+
+/** @defgroup __device_Registers
+  * @{
+  */
+typedef struct _USB_OTG_DREGS // 800h
+{
+  __IO uint32_t DCFG;         /* dev Configuration Register   800h*/
+  __IO uint32_t DCTL;         /* dev Control Register         804h*/
+  __IO uint32_t DSTS;         /* dev Status Register (RO)     808h*/
+  uint32_t Reserved0C;           /* Reserved                     80Ch*/
+  __IO uint32_t DIEPMSK;   /* dev IN Endpoint Mask         810h*/
+  __IO uint32_t DOEPMSK;  /* dev OUT Endpoint Mask        814h*/
+  __IO uint32_t DAINT;     /* dev All Endpoints Itr Reg    818h*/
+  __IO uint32_t DAINTMSK; /* dev All Endpoints Itr Mask   81Ch*/
+  uint32_t  Reserved20;          /* Reserved                     820h*/
+  uint32_t Reserved9;       /* Reserved                     824h*/
+  __IO uint32_t DVBUSDIS;    /* dev VBUS discharge Register  828h*/
+  __IO uint32_t DVBUSPULSE;  /* dev VBUS Pulse Register      82Ch*/
+  __IO uint32_t DTHRCTL;     /* dev thr                      830h*/
+  __IO uint32_t DIEPEMPMSK; /* dev empty msk             834h*/
+  __IO uint32_t DEACHINT;    /* dedicated EP interrupt       838h*/
+  __IO uint32_t DEACHMSK;    /* dedicated EP msk             83Ch*/  
+  uint32_t Reserved40;      /* dedicated EP mask           840h*/
+  __IO uint32_t DINEP1MSK;  /* dedicated EP mask           844h*/
+  uint32_t  Reserved44[15];      /* Reserved                 844-87Ch*/
+  __IO uint32_t DOUTEP1MSK; /* dedicated EP msk            884h*/   
+}
+USB_OTG_DREGS;
+/**
+  * @}
+  */
+
+
+/** @defgroup __IN_Endpoint-Specific_Register
+  * @{
+  */
+typedef struct _USB_OTG_INEPREGS
+{
+  __IO uint32_t DIEPCTL; /* dev IN Endpoint Control Reg 900h + (ep_num * 20h) + 00h*/
+  uint32_t Reserved04;             /* Reserved                       900h + (ep_num * 20h) + 04h*/
+  __IO uint32_t DIEPINT; /* dev IN Endpoint Itr Reg     900h + (ep_num * 20h) + 08h*/
+  uint32_t Reserved0C;             /* Reserved                       900h + (ep_num * 20h) + 0Ch*/
+  __IO uint32_t DIEPTSIZ; /* IN Endpoint Txfer Size   900h + (ep_num * 20h) + 10h*/
+  __IO uint32_t DIEPDMA; /* IN Endpoint DMA Address Reg    900h + (ep_num * 20h) + 14h*/
+  __IO uint32_t DTXFSTS;/*IN Endpoint Tx FIFO Status Reg 900h + (ep_num * 20h) + 18h*/
+  uint32_t Reserved18;             /* Reserved  900h+(ep_num*20h)+1Ch-900h+ (ep_num * 20h) + 1Ch*/
+}
+USB_OTG_INEPREGS;
+/**
+  * @}
+  */
+
+
+/** @defgroup __OUT_Endpoint-Specific_Registers
+  * @{
+  */
+typedef struct _USB_OTG_OUTEPREGS
+{
+  __IO uint32_t DOEPCTL;       /* dev OUT Endpoint Control Reg  B00h + (ep_num * 20h) + 00h*/
+  uint32_t Reserved04;         /* Reserved                      B00h + (ep_num * 20h) + 04h*/
+  __IO uint32_t DOEPINT;       /* dev OUT Endpoint Itr Reg      B00h + (ep_num * 20h) + 08h*/
+  uint32_t Reserved0C;         /* Reserved                      B00h + (ep_num * 20h) + 0Ch*/
+  __IO uint32_t DOEPTSIZ;      /* dev OUT Endpoint Txfer Size   B00h + (ep_num * 20h) + 10h*/
+  __IO uint32_t DOEPDMA;       /* dev OUT Endpoint DMA Address  B00h + (ep_num * 20h) + 14h*/
+  uint32_t Reserved18[2];      /* Reserved B00h + (ep_num * 20h) + 18h - B00h + (ep_num * 20h) + 1Ch*/
+}
+USB_OTG_OUTEPREGS;
+/**
+  * @}
+  */
+
+
+/** @defgroup __Host_Mode_Register_Structures
+  * @{
+  */
+typedef struct _USB_OTG_HREGS
+{
+  __IO uint32_t HCFG;             /* Host Configuration Register    400h*/
+  __IO uint32_t HFIR;      /* Host Frame Interval Register   404h*/
+  __IO uint32_t HFNUM;         /* Host Frame Nbr/Frame Remaining 408h*/
+  uint32_t Reserved40C;                   /* Reserved                       40Ch*/
+  __IO uint32_t HPTXSTS;   /* Host Periodic Tx FIFO/ Queue Status 410h*/
+  __IO uint32_t HAINT;   /* Host All Channels Interrupt Register 414h*/
+  __IO uint32_t HAINTMSK;   /* Host All Channels Interrupt Mask 418h*/
+}
+USB_OTG_HREGS;
+/**
+  * @}
+  */
+
+
+/** @defgroup __Host_Channel_Specific_Registers
+  * @{
+  */
+typedef struct _USB_OTG_HC_REGS
+{
+  __IO uint32_t HCCHAR;
+  __IO uint32_t HCSPLT;
+  __IO uint32_t HCINT;
+  __IO uint32_t HCINTMSK;
+  __IO uint32_t HCTSIZ;
+  __IO uint32_t HCDMA;
+  uint32_t Reserved[2];
+}
+USB_OTG_HC_REGS;
+/**
+  * @}
+  */
+
+
+/** @defgroup __otg_Core_registers
+  * @{
+  */
+typedef struct USB_OTG_core_regs //000h
+{
+  USB_OTG_GREGS         *GREGS;
+  USB_OTG_DREGS         *DREGS;
+  USB_OTG_HREGS         *HREGS;
+  USB_OTG_INEPREGS      *INEP_REGS[USB_OTG_MAX_TX_FIFOS];
+  USB_OTG_OUTEPREGS     *OUTEP_REGS[USB_OTG_MAX_TX_FIFOS];
+  USB_OTG_HC_REGS       *HC_REGS[USB_OTG_MAX_TX_FIFOS];
+  __IO uint32_t         *HPRT0;
+  __IO uint32_t         *DFIFO[USB_OTG_MAX_TX_FIFOS];
+  __IO uint32_t         *PCGCCTL;
+}
+USB_OTG_CORE_REGS , *PUSB_OTG_CORE_REGS;
+typedef union _USB_OTG_GOTGCTL_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t sesreqscs :
+    1;
+uint32_t sesreq :
+    1;
+uint32_t Reserved2_7 :
+    6;
+uint32_t hstnegscs :
+    1;
+uint32_t hnpreq :
+    1;
+uint32_t hstsethnpen :
+    1;
+uint32_t devhnpen :
+    1;
+uint32_t Reserved12_15 :
+    4;
+uint32_t conidsts :
+    1;
+uint32_t dbct :
+    1;
+uint32_t asesvld :
+    1;
+uint32_t bsesvld :
+    1;
+uint32_t Reserved20_31 :
+    12;
+  }
+  b;
+} USB_OTG_GOTGCTL_TypeDef ;
+
+typedef union _USB_OTG_GOTGINT_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t Reserved0_1 :
+    2;
+uint32_t sesenddet :
+    1;
+uint32_t Reserved3_7 :
+    5;
+uint32_t sesreqsucstschng :
+    1;
+uint32_t hstnegsucstschng :
+    1;
+uint32_t reserver10_16 :
+    7;
+uint32_t hstnegdet :
+    1;
+uint32_t adevtoutchng :
+    1;
+uint32_t debdone :
+    1;
+uint32_t Reserved31_20 :
+    12;
+  }
+  b;
+} USB_OTG_GOTGINT_TypeDef ;
+typedef union _USB_OTG_GAHBCFG_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t glblintrmsk :
+    1;
+uint32_t hburstlen :
+    4;
+uint32_t dmaenable :
+    1;
+uint32_t Reserved :
+    1;
+uint32_t nptxfemplvl_txfemplvl :
+    1;
+uint32_t ptxfemplvl :
+    1;
+uint32_t Reserved9_31 :
+    23;
+  }
+  b;
+} USB_OTG_GAHBCFG_TypeDef ;
+typedef union _USB_OTG_GUSBCFG_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t toutcal :
+    3;
+uint32_t Reserved3_5 :
+    3;
+uint32_t physel :
+    1;
+uint32_t Reserved7 :
+    1;
+uint32_t srpcap :
+    1;
+uint32_t hnpcap :
+    1;
+uint32_t usbtrdtim :
+    4;
+uint32_t Reserved14 :
+    1;
+uint32_t phylpwrclksel :
+    1;
+uint32_t Reserved16 :
+    1;
+uint32_t ulpi_fsls :
+    1;
+uint32_t ulpi_auto_res :
+    1;
+uint32_t ulpi_clk_sus_m :
+    1;
+uint32_t ulpi_ext_vbus_drv :
+    1;
+uint32_t ulpi_int_vbus_ind :
+    1;
+uint32_t term_sel_dl_pulse :
+    1;
+uint32_t ulpi_ind_cpl :
+    1;
+uint32_t ulpi_passthrough :
+    1;       
+uint32_t ulpi_protect_disable :
+    1; 
+uint32_t Reserved26_28 :
+    3;     
+uint32_t force_host :
+    1;
+uint32_t force_dev :
+    1;
+uint32_t corrupt_tx :
+    1;
+  }
+  b;
+} USB_OTG_GUSBCFG_TypeDef ;
+typedef union _USB_OTG_GRSTCTL_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t csftrst :
+    1;
+uint32_t hsftrst :
+    1;
+uint32_t hstfrm :
+    1;
+uint32_t Reserved3 :
+    1;
+uint32_t rxfflsh :
+    1;
+uint32_t txfflsh :
+    1;
+uint32_t txfnum :
+    5;
+uint32_t Reserved11_29 :
+    19;
+uint32_t dmareq :
+    1;
+uint32_t ahbidle :
+    1;
+  }
+  b;
+} USB_OTG_GRSTCTL_TypeDef ;
+typedef union _USB_OTG_GINTMSK_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t Reserved0 :
+    1;
+uint32_t modemismatch :
+    1;
+uint32_t otgintr :
+    1;
+uint32_t sofintr :
+    1;
+uint32_t rxstsqlvl :
+    1;
+uint32_t nptxfempty :
+    1;
+uint32_t ginnakeff :
+    1;
+uint32_t goutnakeff :
+    1;
+uint32_t Reserved8_9 :
+    2;
+uint32_t erlysuspend :
+    1;
+uint32_t usbsuspend :
+    1;
+uint32_t usbreset :
+    1;
+uint32_t enumdone :
+    1;
+uint32_t isooutdrop :
+    1;
+uint32_t eopframe :
+    1;
+uint32_t Reserved16 :
+    1;
+uint32_t epmismatch :
+    1;
+uint32_t inepintr :
+    1;
+uint32_t outepintr :
+    1;
+uint32_t incomplisoin :
+    1;
+uint32_t incomplisoout :
+    1;
+uint32_t Reserved22_23 :
+    2;
+uint32_t portintr :
+    1;
+uint32_t hcintr :
+    1;
+uint32_t ptxfempty :
+    1;
+uint32_t Reserved27 :
+    1;
+uint32_t conidstschng :
+    1;
+uint32_t disconnect :
+    1;
+uint32_t sessreqintr :
+    1;
+uint32_t wkupintr :
+    1;
+  }
+  b;
+} USB_OTG_GINTMSK_TypeDef ;
+typedef union _USB_OTG_GINTSTS_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t curmode :
+    1;
+uint32_t modemismatch :
+    1;
+uint32_t otgintr :
+    1;
+uint32_t sofintr :
+    1;
+uint32_t rxstsqlvl :
+    1;
+uint32_t nptxfempty :
+    1;
+uint32_t ginnakeff :
+    1;
+uint32_t goutnakeff :
+    1;
+uint32_t Reserved8_9 :
+    2;
+uint32_t erlysuspend :
+    1;
+uint32_t usbsuspend :
+    1;
+uint32_t usbreset :
+    1;
+uint32_t enumdone :
+    1;
+uint32_t isooutdrop :
+    1;
+uint32_t eopframe :
+    1;
+uint32_t Reserved16_17 :
+    2;
+uint32_t inepint:
+    1;
+uint32_t outepintr :
+    1;
+uint32_t incomplisoin :
+    1;
+uint32_t incomplisoout :
+    1;
+uint32_t Reserved22_23 :
+    2;
+uint32_t portintr :
+    1;
+uint32_t hcintr :
+    1;
+uint32_t ptxfempty :
+    1;
+uint32_t Reserved27 :
+    1;
+uint32_t conidstschng :
+    1;
+uint32_t disconnect :
+    1;
+uint32_t sessreqintr :
+    1;
+uint32_t wkupintr :
+    1;
+  }
+  b;
+} USB_OTG_GINTSTS_TypeDef ;
+typedef union _USB_OTG_DRXSTS_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t epnum :
+    4;
+uint32_t bcnt :
+    11;
+uint32_t dpid :
+    2;
+uint32_t pktsts :
+    4;
+uint32_t fn :
+    4;
+uint32_t Reserved :
+    7;
+  }
+  b;
+} USB_OTG_DRXSTS_TypeDef ;
+typedef union _USB_OTG_GRXSTS_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t chnum :
+    4;
+uint32_t bcnt :
+    11;
+uint32_t dpid :
+    2;
+uint32_t pktsts :
+    4;
+uint32_t Reserved :
+    11;
+  }
+  b;
+} USB_OTG_GRXFSTS_TypeDef ;
+typedef union _USB_OTG_FSIZ_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t startaddr :
+    16;
+uint32_t depth :
+    16;
+  }
+  b;
+} USB_OTG_FSIZ_TypeDef ;
+typedef union _USB_OTG_HNPTXSTS_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+    uint32_t nptxfspcavail :
+      16;
+    uint32_t nptxqspcavail :
+      8;
+      struct
+        {
+          uint32_t terminate :
+            1;
+          uint32_t token :
+            2;
+          uint32_t chnum :
+            4; 
+         } nptxqtop;
+     uint32_t Reserved :
+        1;
+  }
+  b;
+} USB_OTG_HNPTXSTS_TypeDef ;
+typedef union _USB_OTG_DTXFSTSn_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t txfspcavail :
+    16;
+uint32_t Reserved :
+    16;
+  }
+  b;
+} USB_OTG_DTXFSTSn_TypeDef ;
+
+typedef union _USB_OTG_GCCFG_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t Reserved_in :
+    16;
+uint32_t pwdn :
+    1;
+uint32_t Reserved_17 :
+    1;
+uint32_t vbussensingA :
+    1;
+uint32_t vbussensingB :
+    1;
+uint32_t sofouten :
+    1;
+uint32_t disablevbussensing :
+    1;
+uint32_t Reserved_out :
+    10;
+  }
+  b;
+} USB_OTG_GCCFG_TypeDef ;
+
+typedef union _USB_OTG_DCFG_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t devspd :
+    2;
+uint32_t nzstsouthshk :
+    1;
+uint32_t Reserved3 :
+    1;
+uint32_t devaddr :
+    7;
+uint32_t perfrint :
+    2;
+uint32_t Reserved12_31 :
+    19;
+  }
+  b;
+} USB_OTG_DCFG_TypeDef ;
+typedef union _USB_OTG_DCTL_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t rmtwkupsig :
+    1;
+uint32_t sftdiscon :
+    1;
+uint32_t gnpinnaksts :
+    1;
+uint32_t goutnaksts :
+    1;
+uint32_t tstctl :
+    3;
+uint32_t sgnpinnak :
+    1;
+uint32_t cgnpinnak :
+    1;
+uint32_t sgoutnak :
+    1;
+uint32_t cgoutnak :
+    1;
+uint32_t poprg_done :
+    1;    
+uint32_t Reserved :
+    20;
+  }
+  b;
+} USB_OTG_DCTL_TypeDef ;
+typedef union _USB_OTG_DSTS_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t suspsts :
+    1;
+uint32_t enumspd :
+    2;
+uint32_t errticerr :
+    1;
+uint32_t Reserved4_7:
+    4;
+uint32_t soffn :
+    14;
+uint32_t Reserved22_31 :
+    10;
+  }
+  b;
+} USB_OTG_DSTS_TypeDef ;
+typedef union _USB_OTG_DIEPINTn_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t xfercompl :
+    1;
+uint32_t epdisabled :
+    1;
+uint32_t Reserved2 :
+    1;
+uint32_t timeout :
+    1;
+uint32_t intktxfemp :
+    1;
+uint32_t Reserved5 :
+    1;
+uint32_t inepnakeff :
+    1;
+uint32_t emptyintr :
+    1;
+uint32_t txfifoundrn :
+    1;
+uint32_t Reserved14_31 :
+    23;
+  }
+  b;
+} USB_OTG_DIEPINTn_TypeDef ;
+typedef union _USB_OTG_DIEPINTn_TypeDef   USB_OTG_DIEPMSK_TypeDef ;
+typedef union _USB_OTG_DOEPINTn_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t xfercompl :
+    1;
+uint32_t epdisabled :
+    1;
+uint32_t Reserved2 :
+    1;
+uint32_t setup :
+    1;
+uint32_t Reserved04_31 :
+    28;
+  }
+  b;
+} USB_OTG_DOEPINTn_TypeDef ;
+typedef union _USB_OTG_DOEPINTn_TypeDef   USB_OTG_DOEPMSK_TypeDef ;
+
+typedef union _USB_OTG_DAINT_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t in :
+    16;
+uint32_t out :
+    16;
+  }
+  ep;
+} USB_OTG_DAINT_TypeDef ;
+
+typedef union _USB_OTG_DTHRCTL_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t non_iso_thr_en :
+    1;
+uint32_t iso_thr_en :
+    1;
+uint32_t tx_thr_len :
+    9;
+uint32_t Reserved11_15 :
+    5;
+uint32_t rx_thr_en :
+    1;
+uint32_t rx_thr_len :
+    9;
+uint32_t Reserved26 : 
+    1;
+uint32_t arp_en :  
+    1;
+uint32_t Reserved28_31 :
+    4;   
+  }
+  b;
+} USB_OTG_DTHRCTL_TypeDef ;
+typedef union _USB_OTG_DEPCTL_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t mps :
+    11;
+uint32_t reserved :
+    4;
+uint32_t usbactep :
+    1;
+uint32_t dpid :
+    1;
+uint32_t naksts :
+    1;
+uint32_t eptype :
+    2;
+uint32_t snp :
+    1;
+uint32_t stall :
+    1;
+uint32_t txfnum :
+    4;
+uint32_t cnak :
+    1;
+uint32_t snak :
+    1;
+uint32_t setd0pid :
+    1;
+uint32_t setd1pid :
+    1;
+uint32_t epdis :
+    1;
+uint32_t epena :
+    1;
+  }
+  b;
+} USB_OTG_DEPCTL_TypeDef ;
+typedef union _USB_OTG_DEPXFRSIZ_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t xfersize :
+    19;
+uint32_t pktcnt :
+    10;
+uint32_t mc :
+    2;
+uint32_t Reserved :
+    1;
+  }
+  b;
+} USB_OTG_DEPXFRSIZ_TypeDef ;
+typedef union _USB_OTG_DEP0XFRSIZ_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t xfersize :
+    7;
+uint32_t Reserved7_18 :
+    12;
+uint32_t pktcnt :
+    2;
+uint32_t Reserved20_28 :
+    9;
+uint32_t supcnt :
+    2;
+    uint32_t Reserved31;
+  }
+  b;
+} USB_OTG_DEP0XFRSIZ_TypeDef ;
+typedef union _USB_OTG_HCFG_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t fslspclksel :
+    2;
+uint32_t fslssupp :
+    1;
+  }
+  b;
+} USB_OTG_HCFG_TypeDef ;
+typedef union _USB_OTG_HFRMINTRVL_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t frint :
+    16;
+uint32_t Reserved :
+    16;
+  }
+  b;
+} USB_OTG_HFRMINTRVL_TypeDef ;
+
+typedef union _USB_OTG_HFNUM_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t frnum :
+    16;
+uint32_t frrem :
+    16;
+  }
+  b;
+} USB_OTG_HFNUM_TypeDef ;
+typedef union _USB_OTG_HPTXSTS_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t ptxfspcavail :
+    16;
+uint32_t ptxqspcavail :
+    8;
+      struct
+        {
+          uint32_t terminate :
+            1;
+          uint32_t token :
+            2;
+          uint32_t chnum :
+            4; 
+          uint32_t odd_even :
+            1;            
+         } ptxqtop;    
+  }
+  b;
+} USB_OTG_HPTXSTS_TypeDef ;
+typedef union _USB_OTG_HPRT0_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t prtconnsts :
+    1;
+uint32_t prtconndet :
+    1;
+uint32_t prtena :
+    1;
+uint32_t prtenchng :
+    1;
+uint32_t prtovrcurract :
+    1;
+uint32_t prtovrcurrchng :
+    1;
+uint32_t prtres :
+    1;
+uint32_t prtsusp :
+    1;
+uint32_t prtrst :
+    1;
+uint32_t Reserved9 :
+    1;
+uint32_t prtlnsts :
+    2;
+uint32_t prtpwr :
+    1;
+uint32_t prttstctl :
+    4;
+uint32_t prtspd :
+    2;
+uint32_t Reserved19_31 :
+    13;
+  }
+  b;
+} USB_OTG_HPRT0_TypeDef ;
+typedef union _USB_OTG_HAINT_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t chint :
+    16;
+uint32_t Reserved :
+    16;
+  }
+  b;
+} USB_OTG_HAINT_TypeDef ;
+typedef union _USB_OTG_HAINTMSK_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t chint :
+    16;
+uint32_t Reserved :
+    16;
+  }
+  b;
+} USB_OTG_HAINTMSK_TypeDef ;
+typedef union _USB_OTG_HCCHAR_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t mps :
+    11;
+uint32_t epnum :
+    4;
+uint32_t epdir :
+    1;
+uint32_t Reserved :
+    1;
+uint32_t lspddev :
+    1;
+uint32_t eptype :
+    2;
+uint32_t multicnt :
+    2;
+uint32_t devaddr :
+    7;
+uint32_t oddfrm :
+    1;
+uint32_t chdis :
+    1;
+uint32_t chen :
+    1;
+  }
+  b;
+} USB_OTG_HCCHAR_TypeDef ;
+typedef union _USB_OTG_HCSPLT_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t prtaddr :
+    7;
+uint32_t hubaddr :
+    7;
+uint32_t xactpos :
+    2;
+uint32_t compsplt :
+    1;
+uint32_t Reserved :
+    14;
+uint32_t spltena :
+    1;
+  }
+  b;
+} USB_OTG_HCSPLT_TypeDef ;
+typedef union _USB_OTG_HCINTn_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t xfercompl :
+    1;
+uint32_t chhltd :
+    1;
+uint32_t ahberr :
+    1;
+uint32_t stall :
+    1;
+uint32_t nak :
+    1;
+uint32_t ack :
+    1;
+uint32_t nyet :
+    1;
+uint32_t xacterr :
+    1;
+uint32_t bblerr :
+    1;
+uint32_t frmovrun :
+    1;
+uint32_t datatglerr :
+    1;
+uint32_t Reserved :
+    21;
+  }
+  b;
+} USB_OTG_HCINTn_TypeDef ;
+typedef union _USB_OTG_HCTSIZn_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t xfersize :
+    19;
+uint32_t pktcnt :
+    10;
+uint32_t pid :
+    2;
+uint32_t dopng :
+    1;
+  }
+  b;
+} USB_OTG_HCTSIZn_TypeDef ;
+typedef union _USB_OTG_HCINTMSK_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t xfercompl :
+    1;
+uint32_t chhltd :
+    1;
+uint32_t ahberr :
+    1;
+uint32_t stall :
+    1;
+uint32_t nak :
+    1;
+uint32_t ack :
+    1;
+uint32_t nyet :
+    1;
+uint32_t xacterr :
+    1;
+uint32_t bblerr :
+    1;
+uint32_t frmovrun :
+    1;
+uint32_t datatglerr :
+    1;
+uint32_t Reserved :
+    21;
+  }
+  b;
+} USB_OTG_HCINTMSK_TypeDef ;
+
+typedef union _USB_OTG_PCGCCTL_TypeDef 
+{
+  uint32_t d32;
+  struct
+  {
+uint32_t stoppclk :
+    1;
+uint32_t gatehclk :
+    1;
+uint32_t Reserved2_3 :
+    2;
+uint32_t phy_susp :
+    1;    
+uint32_t Reserved5_31 :
+    27;
+  }
+  b;
+} USB_OTG_PCGCCTL_TypeDef ;
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_REGS_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_REGS_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_REGS_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+#endif //__USB_OTG_REGS_H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/src/usb_core.c
@@ -1,0 +1,2162 @@
+/**
+  ******************************************************************************
+  * @file    usb_core.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   USB-OTG Core Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_core.h"
+#include "usb_bsp.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+* @{
+*/
+
+/** @defgroup USB_CORE 
+* @brief This file includes the USB-OTG Core Layer
+* @{
+*/
+
+
+/** @defgroup USB_CORE_Private_Defines
+* @{
+*/ 
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_CORE_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+
+/** @defgroup USB_CORE_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_CORE_Private_Variables
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_CORE_Private_FunctionPrototypes
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_CORE_Private_Functions
+* @{
+*/ 
+
+/**
+* @brief  USB_OTG_EnableCommonInt
+*         Initializes the commmon interrupts, used in both device and modes
+* @param  pdev : Selected device
+* @retval None
+*/
+static void USB_OTG_EnableCommonInt(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTMSK_TypeDef  int_mask;
+  
+  int_mask.d32 = 0;
+  /* Clear any pending USB_OTG Interrupts */
+#ifndef USE_OTG_MODE
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GOTGINT, 0xFFFFFFFF);
+#endif
+  /* Clear any pending interrupts */
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTSTS, 0xBFFFFFFF);
+  /* Enable the interrupts in the INTMSK */
+  int_mask.b.wkupintr = 1;
+  int_mask.b.usbsuspend = 1; 
+  
+#ifdef USE_OTG_MODE
+  int_mask.b.otgintr = 1;
+  int_mask.b.sessreqintr = 1;
+  int_mask.b.conidstschng = 1;
+#endif
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTMSK, int_mask.d32);
+}
+
+/**
+* @brief  USB_OTG_CoreReset : Soft reset of the core
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+static USB_OTG_STS USB_OTG_CoreReset(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  __IO USB_OTG_GRSTCTL_TypeDef  greset;
+  uint32_t count = 0;
+  
+  greset.d32 = 0;
+  /* Wait for AHB master IDLE state. */
+  do
+  {
+    USB_OTG_BSP_uDelay(3);
+    greset.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GRSTCTL);
+    if (++count > 200000)
+    {
+      return USB_OTG_OK;
+    }
+  }
+  while (greset.b.ahbidle == 0);
+  /* Core Soft Reset */
+  count = 0;
+  greset.b.csftrst = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRSTCTL, greset.d32 );
+  do
+  {
+    greset.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GRSTCTL);
+    if (++count > 200000)
+    {
+      break;
+    }
+  }
+  while (greset.b.csftrst == 1);
+  /* Wait for 3 PHY Clocks*/
+  USB_OTG_BSP_uDelay(3);
+  return status;
+}
+
+/**
+* @brief  USB_OTG_WritePacket : Writes a packet into the Tx FIFO associated 
+*         with the EP
+* @param  pdev : Selected device
+* @param  src : source pointer
+* @param  ch_ep_num : end point number
+* @param  bytes : No. of bytes
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_WritePacket(USB_OTG_CORE_HANDLE *pdev, 
+                                uint8_t             *src, 
+                                uint8_t             ch_ep_num, 
+                                uint16_t            len)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  if (pdev->cfg.dma_enable == 0)
+  {
+    uint32_t count32b= 0 , i= 0;
+    __IO uint32_t *fifo;
+    
+    count32b =  (len + 3) / 4;
+    fifo = pdev->regs.DFIFO[ch_ep_num];
+    for (i = 0; i < count32b; i++, src+=4)
+    {
+      USB_OTG_WRITE_REG32( fifo, *((__packed uint32_t *)src) );
+    }
+  }
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_ReadPacket : Reads a packet from the Rx FIFO
+* @param  pdev : Selected device
+* @param  dest : Destination Pointer
+* @param  bytes : No. of bytes
+* @retval None
+*/
+void *USB_OTG_ReadPacket(USB_OTG_CORE_HANDLE *pdev, 
+                         uint8_t *dest, 
+                         uint16_t len)
+{
+  uint32_t i=0;
+  uint32_t count32b = (len + 3) / 4;
+  
+  __IO uint32_t *fifo = pdev->regs.DFIFO[0];
+  
+  for ( i = 0; i < count32b; i++, dest += 4 )
+  {
+    *(__packed uint32_t *)dest = USB_OTG_READ_REG32(fifo);
+    
+  }
+  return ((void *)dest);
+}
+
+/**
+* @brief  USB_OTG_SelectCore 
+*         Initialize core registers address.
+* @param  pdev : Selected device
+* @param  coreID : USB OTG Core ID
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_SelectCore(USB_OTG_CORE_HANDLE *pdev, 
+                               USB_OTG_CORE_ID_TypeDef coreID)
+{
+  uint32_t i , baseAddress = 0;
+  USB_OTG_STS status = USB_OTG_OK;
+  
+  pdev->cfg.dma_enable       = 0;
+  
+  /* at startup the core is in FS mode */
+  pdev->cfg.speed            = USB_OTG_SPEED_FULL;
+  pdev->cfg.mps              = USB_OTG_FS_MAX_PACKET_SIZE ;    
+  
+  /* initialize device cfg following its address */
+  if (coreID == USB_OTG_FS_CORE_ID)
+  {
+    baseAddress                = USB_OTG_FS_BASE_ADDR;
+    pdev->cfg.coreID           = USB_OTG_FS_CORE_ID;
+    pdev->cfg.host_channels    = 8 ;
+    pdev->cfg.dev_endpoints    = 4 ;
+    pdev->cfg.TotalFifoSize    = 320; /* in 32-bits */
+    pdev->cfg.phy_itface       = USB_OTG_EMBEDDED_PHY;     
+    
+#ifdef USB_OTG_FS_SOF_OUTPUT_ENABLED    
+    pdev->cfg.Sof_output       = 1;    
+#endif 
+    
+#ifdef USB_OTG_FS_LOW_PWR_MGMT_SUPPORT    
+    pdev->cfg.low_power        = 1;    
+#endif     
+  }
+  else if (coreID == USB_OTG_HS_CORE_ID)
+  {
+    baseAddress                = USB_OTG_HS_BASE_ADDR;
+    pdev->cfg.coreID           = USB_OTG_HS_CORE_ID;    
+    pdev->cfg.host_channels    = 12 ;
+    pdev->cfg.dev_endpoints    = 6 ;
+    pdev->cfg.TotalFifoSize    = 1280;/* in 32-bits */
+    
+#ifdef USB_OTG_ULPI_PHY_ENABLED
+    pdev->cfg.phy_itface       = USB_OTG_ULPI_PHY;
+#else    
+#ifdef USB_OTG_EMBEDDED_PHY_ENABLED
+    pdev->cfg.phy_itface       = USB_OTG_EMBEDDED_PHY;
+#endif  
+#endif      
+    
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED    
+    pdev->cfg.dma_enable       = 1;    
+#endif
+    
+#ifdef USB_OTG_HS_SOF_OUTPUT_ENABLED    
+    pdev->cfg.Sof_output       = 1;    
+#endif 
+    
+#ifdef USB_OTG_HS_LOW_PWR_MGMT_SUPPORT    
+    pdev->cfg.low_power        = 1;    
+#endif 
+    
+  }
+  
+  pdev->regs.GREGS = (USB_OTG_GREGS *)(baseAddress + \
+    USB_OTG_CORE_GLOBAL_REGS_OFFSET);
+  pdev->regs.DREGS =  (USB_OTG_DREGS  *)  (baseAddress + \
+    USB_OTG_DEV_GLOBAL_REG_OFFSET);
+  
+  for (i = 0; i < pdev->cfg.dev_endpoints; i++)
+  {
+    pdev->regs.INEP_REGS[i]  = (USB_OTG_INEPREGS *)  \
+      (baseAddress + USB_OTG_DEV_IN_EP_REG_OFFSET + \
+        (i * USB_OTG_EP_REG_OFFSET));
+    pdev->regs.OUTEP_REGS[i] = (USB_OTG_OUTEPREGS *) \
+      (baseAddress + USB_OTG_DEV_OUT_EP_REG_OFFSET + \
+        (i * USB_OTG_EP_REG_OFFSET));
+  }
+  pdev->regs.HREGS = (USB_OTG_HREGS *)(baseAddress + \
+    USB_OTG_HOST_GLOBAL_REG_OFFSET);
+  pdev->regs.HPRT0 = (uint32_t *)(baseAddress + USB_OTG_HOST_PORT_REGS_OFFSET);
+  
+  for (i = 0; i < pdev->cfg.host_channels; i++)
+  {
+    pdev->regs.HC_REGS[i] = (USB_OTG_HC_REGS *)(baseAddress + \
+      USB_OTG_HOST_CHAN_REGS_OFFSET + \
+        (i * USB_OTG_CHAN_REGS_OFFSET));
+  }
+  for (i = 0; i < pdev->cfg.host_channels; i++)
+  {
+    pdev->regs.DFIFO[i] = (uint32_t *)(baseAddress + USB_OTG_DATA_FIFO_OFFSET +\
+      (i * USB_OTG_DATA_FIFO_SIZE));
+  }
+  pdev->regs.PCGCCTL = (uint32_t *)(baseAddress + USB_OTG_PCGCCTL_OFFSET);
+  
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_CoreInit
+*         Initializes the USB_OTG controller registers and prepares the core
+*         device mode or host mode operation.
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_CoreInit(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_GUSBCFG_TypeDef  usbcfg;
+  USB_OTG_GCCFG_TypeDef    gccfg;
+  USB_OTG_GAHBCFG_TypeDef  ahbcfg;
+  
+  usbcfg.d32 = 0;
+  gccfg.d32 = 0;
+  ahbcfg.d32 = 0;
+  
+  
+  
+  if (pdev->cfg.phy_itface == USB_OTG_ULPI_PHY)
+  {
+    gccfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GCCFG);
+    gccfg.b.pwdn = 0;
+    
+    if (pdev->cfg.Sof_output)
+    {
+      gccfg.b.sofouten = 1;   
+    }
+    USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GCCFG, gccfg.d32);
+    
+    /* Init The ULPI Interface */
+    usbcfg.d32 = 0;
+    usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);
+    
+    usbcfg.b.physel            = 0; /* HS Interface */
+#ifdef USB_OTG_INTERNAL_VBUS_ENABLED
+    usbcfg.b.ulpi_ext_vbus_drv = 0; /* Use internal VBUS */
+#else
+#ifdef USB_OTG_EXTERNAL_VBUS_ENABLED    
+    usbcfg.b.ulpi_ext_vbus_drv = 1; /* Use external VBUS */
+#endif
+#endif 
+    usbcfg.b.term_sel_dl_pulse = 0; /* Data line pulsing using utmi_txvalid */    
+    
+    usbcfg.b.ulpi_fsls = 0;
+    usbcfg.b.ulpi_clk_sus_m = 0;
+    USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
+    
+    /* Reset after a PHY select  */
+    USB_OTG_CoreReset(pdev);
+    
+    if(pdev->cfg.dma_enable == 1)
+    {
+      
+      ahbcfg.b.hburstlen = 5; /* 64 x 32-bits*/
+      ahbcfg.b.dmaenable = 1;
+      USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GAHBCFG, ahbcfg.d32);
+      
+    }    
+  }
+  else /* FS interface (embedded Phy) */
+  {
+    
+    usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);;
+    usbcfg.b.physel  = 1; /* FS Interface */
+    USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
+    /* Reset after a PHY select and set Host mode */
+    USB_OTG_CoreReset(pdev);
+    /* Deactivate the power down*/
+    gccfg.d32 = 0;
+    gccfg.b.pwdn = 1;
+    
+    gccfg.b.vbussensingA = 1 ;
+    gccfg.b.vbussensingB = 1 ;     
+#ifndef VBUS_SENSING_ENABLED
+    gccfg.b.disablevbussensing = 1; 
+#endif    
+    
+    if(pdev->cfg.Sof_output)
+    {
+      gccfg.b.sofouten = 1;  
+    }
+    
+    USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GCCFG, gccfg.d32);
+    USB_OTG_BSP_mDelay(20);
+  }
+  /* case the HS core is working in FS mode */
+  if(pdev->cfg.dma_enable == 1)
+  {
+    
+    ahbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GAHBCFG);
+    ahbcfg.b.hburstlen = 5; /* 64 x 32-bits*/
+    ahbcfg.b.dmaenable = 1;
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GAHBCFG, ahbcfg.d32);
+    
+  }
+  /* initialize OTG features */
+#ifdef  USE_OTG_MODE
+  usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);
+  usbcfg.b.hnpcap = 1;
+  usbcfg.b.srpcap = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
+  USB_OTG_EnableCommonInt(pdev);
+#endif
+  return status;
+}
+/**
+* @brief  USB_OTG_EnableGlobalInt
+*         Enables the controller's Global Int in the AHB Config reg
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EnableGlobalInt(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_GAHBCFG_TypeDef  ahbcfg;
+  
+  ahbcfg.d32 = 0;
+  ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */
+  USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GAHBCFG, 0, ahbcfg.d32);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_DisableGlobalInt
+*         Enables the controller's Global Int in the AHB Config reg
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_DisableGlobalInt(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_GAHBCFG_TypeDef  ahbcfg;
+  ahbcfg.d32 = 0;
+  ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */
+  USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GAHBCFG, ahbcfg.d32, 0);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_FlushTxFifo : Flush a Tx FIFO
+* @param  pdev : Selected device
+* @param  num : FO num
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_FlushTxFifo (USB_OTG_CORE_HANDLE *pdev , uint32_t num )
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  __IO USB_OTG_GRSTCTL_TypeDef  greset;
+  
+  uint32_t count = 0;
+  greset.d32 = 0;
+  greset.b.txfflsh = 1;
+  greset.b.txfnum  = num;
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GRSTCTL, greset.d32 );
+  do
+  {
+    greset.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GRSTCTL);
+    if (++count > 200000)
+    {
+      break;
+    }
+  }
+  while (greset.b.txfflsh == 1);
+  /* Wait for 3 PHY Clocks*/
+  USB_OTG_BSP_uDelay(3);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_FlushRxFifo : Flush a Rx FIFO
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_FlushRxFifo( USB_OTG_CORE_HANDLE *pdev )
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  __IO USB_OTG_GRSTCTL_TypeDef  greset;
+  uint32_t count = 0;
+  
+  greset.d32 = 0;
+  greset.b.rxfflsh = 1;
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GRSTCTL, greset.d32 );
+  do
+  {
+    greset.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GRSTCTL);
+    if (++count > 200000)
+    {
+      break;
+    }
+  }
+  while (greset.b.rxfflsh == 1);
+  /* Wait for 3 PHY Clocks*/
+  USB_OTG_BSP_uDelay(3);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_SetCurrentMode : Set ID line
+* @param  pdev : Selected device
+* @param  mode :  (Host/device)
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_SetCurrentMode(USB_OTG_CORE_HANDLE *pdev , uint8_t mode)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_GUSBCFG_TypeDef  usbcfg;
+  
+  usbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);
+  
+  usbcfg.b.force_host = 0;
+  usbcfg.b.force_dev = 0;
+  
+  if ( mode == HOST_MODE)
+  {
+    usbcfg.b.force_host = 1;
+  }
+  else if ( mode == DEVICE_MODE)
+  {
+    usbcfg.b.force_dev = 1;
+  }
+  
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GUSBCFG, usbcfg.d32);
+  USB_OTG_BSP_mDelay(50);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_GetMode : Get current mode
+* @param  pdev : Selected device
+* @retval current mode
+*/
+uint32_t USB_OTG_GetMode(USB_OTG_CORE_HANDLE *pdev)
+{
+  return (USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTSTS ) & 0x1);
+}
+
+
+/**
+* @brief  USB_OTG_IsDeviceMode : Check if it is device mode
+* @param  pdev : Selected device
+* @retval num_in_ep
+*/
+uint8_t USB_OTG_IsDeviceMode(USB_OTG_CORE_HANDLE *pdev)
+{
+  return (USB_OTG_GetMode(pdev) != HOST_MODE);
+}
+
+
+/**
+* @brief  USB_OTG_IsHostMode : Check if it is host mode
+* @param  pdev : Selected device
+* @retval num_in_ep
+*/
+uint8_t USB_OTG_IsHostMode(USB_OTG_CORE_HANDLE *pdev)
+{
+  return (USB_OTG_GetMode(pdev) == HOST_MODE);
+}
+
+
+/**
+* @brief  USB_OTG_ReadCoreItr : returns the Core Interrupt register
+* @param  pdev : Selected device
+* @retval Status
+*/
+uint32_t USB_OTG_ReadCoreItr(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint32_t v = 0;
+  v = USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTSTS);
+  v &= USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTMSK);
+  return v;
+}
+
+
+/**
+* @brief  USB_OTG_ReadOtgItr : returns the USB_OTG Interrupt register
+* @param  pdev : Selected device
+* @retval Status
+*/
+uint32_t USB_OTG_ReadOtgItr (USB_OTG_CORE_HANDLE *pdev)
+{
+  return (USB_OTG_READ_REG32 (&pdev->regs.GREGS->GOTGINT));
+}
+
+#ifdef USE_HOST_MODE
+/**
+* @brief  USB_OTG_CoreInitHost : Initializes USB_OTG controller for host mode
+* @param  pdev : Selected device
+* @retval status
+*/
+USB_OTG_STS USB_OTG_CoreInitHost(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS                     status = USB_OTG_OK;
+  USB_OTG_FSIZ_TypeDef            nptxfifosize;
+  USB_OTG_FSIZ_TypeDef            ptxfifosize;  
+  USB_OTG_HCFG_TypeDef            hcfg;
+  
+#ifdef USE_OTG_MODE
+  USB_OTG_OTGCTL_TypeDef          gotgctl;
+#endif
+  
+  uint32_t                        i = 0;
+  
+  nptxfifosize.d32 = 0;  
+  ptxfifosize.d32 = 0;
+#ifdef USE_OTG_MODE
+  gotgctl.d32 = 0;
+#endif
+  hcfg.d32 = 0;
+  
+  
+  /* configure charge pump IO */
+  USB_OTG_BSP_ConfigVBUS(pdev);
+  
+  /* Restart the Phy Clock */
+  USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, 0);
+  
+  /* Initialize Host Configuration Register */
+  if (pdev->cfg.phy_itface == USB_OTG_ULPI_PHY)
+  {
+    USB_OTG_InitFSLSPClkSel(pdev , HCFG_30_60_MHZ); 
+  }
+  else
+  {
+    USB_OTG_InitFSLSPClkSel(pdev , HCFG_48_MHZ); 
+  }
+  USB_OTG_ResetPort(pdev);
+  
+  hcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HCFG);
+  hcfg.b.fslssupp = 0;
+  USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HCFG, hcfg.d32);
+  
+  /* Configure data FIFO sizes */
+  /* Rx FIFO */
+#ifdef USB_OTG_FS_CORE
+  if(pdev->cfg.coreID == USB_OTG_FS_CORE_ID)
+  {
+    /* set Rx FIFO size */
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_FS_SIZE);
+    nptxfifosize.b.startaddr = RX_FIFO_FS_SIZE;   
+    nptxfifosize.b.depth = TXH_NP_FS_FIFOSIZ;  
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32);
+    
+    ptxfifosize.b.startaddr = RX_FIFO_FS_SIZE + TXH_NP_FS_FIFOSIZ;
+    ptxfifosize.b.depth     = TXH_P_FS_FIFOSIZ;
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->HPTXFSIZ, ptxfifosize.d32);      
+  }
+#endif
+#ifdef USB_OTG_HS_CORE  
+  if (pdev->cfg.coreID == USB_OTG_HS_CORE_ID)
+  {
+    /* set Rx FIFO size */
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_HS_SIZE);
+    nptxfifosize.b.startaddr = RX_FIFO_HS_SIZE;   
+    nptxfifosize.b.depth = TXH_NP_HS_FIFOSIZ;  
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32);
+    
+    ptxfifosize.b.startaddr = RX_FIFO_HS_SIZE + TXH_NP_HS_FIFOSIZ;
+    ptxfifosize.b.depth     = TXH_P_HS_FIFOSIZ;
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->HPTXFSIZ, ptxfifosize.d32);      
+  }
+#endif  
+  
+#ifdef USE_OTG_MODE
+  /* Clear Host Set HNP Enable in the USB_OTG Control Register */
+  gotgctl.b.hstsethnpen = 1;
+  USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GOTGCTL, gotgctl.d32, 0);
+#endif
+  
+  /* Make sure the FIFOs are flushed. */
+  USB_OTG_FlushTxFifo(pdev, 0x10 );         /* all Tx FIFOs */
+  USB_OTG_FlushRxFifo(pdev);
+  
+  
+  /* Clear all pending HC Interrupts */
+  for (i = 0; i < pdev->cfg.host_channels; i++)
+  {
+    USB_OTG_WRITE_REG32( &pdev->regs.HC_REGS[i]->HCINT, 0xFFFFFFFF );
+    USB_OTG_WRITE_REG32( &pdev->regs.HC_REGS[i]->HCINTMSK, 0 );
+  }
+#ifndef USE_OTG_MODE
+  USB_OTG_DriveVbus(pdev, 1);
+#endif
+  
+  USB_OTG_EnableHostInt(pdev);
+  return status;
+}
+
+/**
+* @brief  USB_OTG_IsEvenFrame 
+*         This function returns the frame number for sof packet
+* @param  pdev : Selected device
+* @retval Frame number
+*/
+uint8_t USB_OTG_IsEvenFrame (USB_OTG_CORE_HANDLE *pdev) 
+{
+  return !(USB_OTG_READ_REG32(&pdev->regs.HREGS->HFNUM) & 0x1);
+}
+
+/**
+* @brief  USB_OTG_DriveVbus : set/reset vbus
+* @param  pdev : Selected device
+* @param  state : VBUS state
+* @retval None
+*/
+void USB_OTG_DriveVbus (USB_OTG_CORE_HANDLE *pdev, uint8_t state)
+{
+  USB_OTG_HPRT0_TypeDef     hprt0;
+  
+  hprt0.d32 = 0;
+  
+  /* enable disable the external charge pump */
+  USB_OTG_BSP_DriveVBUS(pdev, state);
+  
+  /* Turn on the Host port power. */
+  hprt0.d32 = USB_OTG_ReadHPRT0(pdev);
+  if ((hprt0.b.prtpwr == 0 ) && (state == 1 ))
+  {
+    hprt0.b.prtpwr = 1;
+    USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
+  }
+  if ((hprt0.b.prtpwr == 1 ) && (state == 0 ))
+  {
+    hprt0.b.prtpwr = 0;
+    USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
+  }
+  
+  USB_OTG_BSP_mDelay(200);
+}
+/**
+* @brief  USB_OTG_EnableHostInt: Enables the Host mode interrupts
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EnableHostInt(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS       status = USB_OTG_OK;
+  USB_OTG_GINTMSK_TypeDef  intmsk;
+  intmsk.d32 = 0;
+  /* Disable all interrupts. */
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTMSK, 0);
+  
+  /* Clear any pending interrupts. */
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, 0xFFFFFFFF);
+  
+  /* Enable the common interrupts */
+  USB_OTG_EnableCommonInt(pdev);
+  
+  if (pdev->cfg.dma_enable == 0)
+  {  
+    intmsk.b.rxstsqlvl  = 1;
+  }  
+  intmsk.b.portintr   = 1;
+  intmsk.b.hcintr     = 1;
+  intmsk.b.disconnect = 1;  
+  intmsk.b.sofintr    = 1;  
+  intmsk.b.incomplisoout  = 1; 
+  USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GINTMSK, intmsk.d32, intmsk.d32);
+  return status;
+}
+
+/**
+* @brief  USB_OTG_InitFSLSPClkSel : Initializes the FSLSPClkSel field of the 
+*         HCFG register on the PHY type
+* @param  pdev : Selected device
+* @param  freq : clock frequency
+* @retval None
+*/
+void USB_OTG_InitFSLSPClkSel(USB_OTG_CORE_HANDLE *pdev , uint8_t freq)
+{
+  USB_OTG_HCFG_TypeDef   hcfg;
+  
+  hcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HCFG);
+  hcfg.b.fslspclksel = freq;
+  USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HCFG, hcfg.d32);
+}
+
+
+/**
+* @brief  USB_OTG_ReadHPRT0 : Reads HPRT0 to modify later
+* @param  pdev : Selected device
+* @retval HPRT0 value
+*/
+uint32_t USB_OTG_ReadHPRT0(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_HPRT0_TypeDef  hprt0;
+  
+  hprt0.d32 = USB_OTG_READ_REG32(pdev->regs.HPRT0);
+  hprt0.b.prtena = 0;
+  hprt0.b.prtconndet = 0;
+  hprt0.b.prtenchng = 0;
+  hprt0.b.prtovrcurrchng = 0;
+  return hprt0.d32;
+}
+
+
+/**
+* @brief  USB_OTG_ReadHostAllChannels_intr : Register PCD Callbacks
+* @param  pdev : Selected device
+* @retval Status
+*/
+uint32_t USB_OTG_ReadHostAllChannels_intr (USB_OTG_CORE_HANDLE *pdev)
+{
+  return (USB_OTG_READ_REG32 (&pdev->regs.HREGS->HAINT));
+}
+
+
+/**
+* @brief  USB_OTG_ResetPort : Reset Host Port
+* @param  pdev : Selected device
+* @retval status
+* @note : (1)The application must wait at least 10 ms (+ 10 ms security)
+*   before clearing the reset bit.
+*/
+uint32_t USB_OTG_ResetPort(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_HPRT0_TypeDef  hprt0;
+  
+  hprt0.d32 = USB_OTG_ReadHPRT0(pdev);
+  hprt0.b.prtrst = 1;
+  USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
+  USB_OTG_BSP_mDelay (10);                                /* See Note #1 */
+  hprt0.b.prtrst = 0;
+  USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
+  USB_OTG_BSP_mDelay (20);   
+  return 1;
+}
+
+
+/**
+* @brief  USB_OTG_HC_Init : Prepares a host channel for transferring packets
+* @param  pdev : Selected device
+* @param  hc_num : channel number
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_HC_Init(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  uint32_t intr_enable = 0;
+  USB_OTG_HCINTMSK_TypeDef  hcintmsk;
+  USB_OTG_GINTMSK_TypeDef    gintmsk;
+  USB_OTG_HCCHAR_TypeDef     hcchar;
+  USB_OTG_HCINTn_TypeDef     hcint;
+  
+  
+  gintmsk.d32 = 0;
+  hcintmsk.d32 = 0;
+  hcchar.d32 = 0;
+  
+  /* Clear old interrupt conditions for this host channel. */
+  hcint.d32 = 0xFFFFFFFF;
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINT, hcint.d32);
+  
+  /* Enable channel interrupts required for this transfer. */
+  hcintmsk.d32 = 0;
+  
+  if (pdev->cfg.dma_enable == 1)
+  {
+    hcintmsk.b.ahberr = 1;
+  }
+  
+  switch (pdev->host.hc[hc_num].ep_type) 
+  {
+  case EP_TYPE_CTRL:
+  case EP_TYPE_BULK:
+    hcintmsk.b.xfercompl = 1;
+    hcintmsk.b.stall = 1;
+    hcintmsk.b.xacterr = 1;
+    hcintmsk.b.datatglerr = 1;
+    hcintmsk.b.nak = 1;  
+    if (pdev->host.hc[hc_num].ep_is_in) 
+    {
+      hcintmsk.b.bblerr = 1;
+    } 
+    else 
+    {
+      hcintmsk.b.nyet = 1;
+      if (pdev->host.hc[hc_num].do_ping) 
+      {
+        hcintmsk.b.ack = 1;
+      }
+    }
+    break;
+  case EP_TYPE_INTR:
+    hcintmsk.b.xfercompl = 1;
+    hcintmsk.b.nak = 1;
+    hcintmsk.b.stall = 1;
+    hcintmsk.b.xacterr = 1;
+    hcintmsk.b.datatglerr = 1;
+    hcintmsk.b.frmovrun = 1;
+    
+    if (pdev->host.hc[hc_num].ep_is_in) 
+    {
+      hcintmsk.b.bblerr = 1;
+    }
+    
+    break;
+  case EP_TYPE_ISOC:
+    hcintmsk.b.xfercompl = 1;
+    hcintmsk.b.frmovrun = 1;
+    hcintmsk.b.ack = 1;
+    
+    if (pdev->host.hc[hc_num].ep_is_in) 
+    {
+      hcintmsk.b.xacterr = 1;
+      hcintmsk.b.bblerr = 1;
+    }
+    break;
+  }
+  
+  
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCINTMSK, hcintmsk.d32);
+  
+  
+  /* Enable the top level host channel interrupt. */
+  intr_enable = (1 << hc_num);
+  USB_OTG_MODIFY_REG32(&pdev->regs.HREGS->HAINTMSK, 0, intr_enable);
+  
+  /* Make sure host channel interrupts are enabled. */
+  gintmsk.b.hcintr = 1;
+  USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GINTMSK, 0, gintmsk.d32);
+  
+  /* Program the HCCHAR register */
+  hcchar.d32 = 0;
+  hcchar.b.devaddr = pdev->host.hc[hc_num].dev_addr;
+  hcchar.b.epnum   = pdev->host.hc[hc_num].ep_num;
+  hcchar.b.epdir   = pdev->host.hc[hc_num].ep_is_in;
+  hcchar.b.lspddev = (pdev->host.hc[hc_num].speed == HPRT0_PRTSPD_LOW_SPEED);
+  hcchar.b.eptype  = pdev->host.hc[hc_num].ep_type;
+  hcchar.b.mps     = pdev->host.hc[hc_num].max_packet;
+  if (pdev->host.hc[hc_num].ep_type == HCCHAR_INTR)
+  {
+    hcchar.b.oddfrm  = 1;
+  }
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_HC_StartXfer : Start transfer
+* @param  pdev : Selected device
+* @param  hc_num : channel number
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_HC_StartXfer(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_HCCHAR_TypeDef   hcchar;
+  USB_OTG_HCTSIZn_TypeDef  hctsiz;
+  USB_OTG_HNPTXSTS_TypeDef hnptxsts; 
+  USB_OTG_HPTXSTS_TypeDef  hptxsts; 
+  USB_OTG_GINTMSK_TypeDef  intmsk;
+  uint16_t                 len_words = 0;   
+  
+  uint16_t num_packets;
+  uint16_t max_hc_pkt_count;
+  
+  max_hc_pkt_count = 256;
+  hctsiz.d32 = 0;
+  hcchar.d32 = 0;
+  intmsk.d32 = 0;
+  
+  /* Compute the expected number of packets associated to the transfer */
+  if (pdev->host.hc[hc_num].xfer_len > 0)
+  {
+    num_packets = (pdev->host.hc[hc_num].xfer_len + \
+      pdev->host.hc[hc_num].max_packet - 1) / pdev->host.hc[hc_num].max_packet;
+    
+    if (num_packets > max_hc_pkt_count)
+    {
+      num_packets = max_hc_pkt_count;
+      pdev->host.hc[hc_num].xfer_len = num_packets * \
+        pdev->host.hc[hc_num].max_packet;
+    }
+  }
+  else
+  {
+    num_packets = 1;
+  }
+  if (pdev->host.hc[hc_num].ep_is_in)
+  {
+    pdev->host.hc[hc_num].xfer_len = num_packets * \
+      pdev->host.hc[hc_num].max_packet;
+  }
+  /* Initialize the HCTSIZn register */
+  hctsiz.b.xfersize = pdev->host.hc[hc_num].xfer_len;
+  hctsiz.b.pktcnt = num_packets;
+  hctsiz.b.pid = pdev->host.hc[hc_num].data_pid;
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCTSIZ, hctsiz.d32);
+  
+  if (pdev->cfg.dma_enable == 1)
+  {
+    USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCDMA, (unsigned int)pdev->host.hc[hc_num].xfer_buff);
+  }
+  
+  
+  hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR);
+  hcchar.b.oddfrm = USB_OTG_IsEvenFrame(pdev);
+  
+  /* Set host channel enable */
+  hcchar.b.chen = 1;
+  hcchar.b.chdis = 0;
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
+  
+  if (pdev->cfg.dma_enable == 0) /* Slave mode */
+  {  
+    if((pdev->host.hc[hc_num].ep_is_in == 0) && 
+       (pdev->host.hc[hc_num].xfer_len > 0))
+    {
+      switch(pdev->host.hc[hc_num].ep_type) 
+      {
+        /* Non periodic transfer */
+      case EP_TYPE_CTRL:
+      case EP_TYPE_BULK:
+        
+        hnptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS);
+        len_words = (pdev->host.hc[hc_num].xfer_len + 3) / 4;
+        
+        /* check if there is enough space in FIFO space */
+        if(len_words > hnptxsts.b.nptxfspcavail)
+        {
+          /* need to process data in nptxfempty interrupt */
+          intmsk.b.nptxfempty = 1;
+          USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, 0, intmsk.d32);  
+        }
+        
+        break;
+        /* Periodic transfer */
+      case EP_TYPE_INTR:
+      case EP_TYPE_ISOC:
+        hptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HPTXSTS);
+        len_words = (pdev->host.hc[hc_num].xfer_len + 3) / 4;
+        /* check if there is enough space in FIFO space */
+        if(len_words > hptxsts.b.ptxfspcavail) /* split the transfer */
+        {
+          /* need to process data in ptxfempty interrupt */
+          intmsk.b.ptxfempty = 1;
+          USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, 0, intmsk.d32);  
+        }
+        break;
+        
+      default:
+        break;
+      }
+      
+      /* Write packet into the Tx FIFO. */
+      USB_OTG_WritePacket(pdev, 
+                          pdev->host.hc[hc_num].xfer_buff , 
+                          hc_num, pdev->host.hc[hc_num].xfer_len);
+    }
+  }
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_HC_Halt : Halt channel
+* @param  pdev : Selected device
+* @param  hc_num : channel number
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_HC_Halt(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_HNPTXSTS_TypeDef            nptxsts;
+  USB_OTG_HPTXSTS_TypeDef             hptxsts;
+  USB_OTG_HCCHAR_TypeDef              hcchar;
+  
+  nptxsts.d32 = 0;
+  hptxsts.d32 = 0;
+  hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR);
+  hcchar.b.chen = 1;
+  hcchar.b.chdis = 1;
+  
+  /* Check for space in the request queue to issue the halt. */
+  if (hcchar.b.eptype == HCCHAR_CTRL || hcchar.b.eptype == HCCHAR_BULK)
+  {
+    nptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS);
+    if (nptxsts.b.nptxqspcavail == 0)
+    {
+      hcchar.b.chen = 0;
+    }
+  }
+  else
+  {
+    hptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HPTXSTS);
+    if (hptxsts.b.ptxqspcavail == 0)
+    {
+      hcchar.b.chen = 0;
+    }
+  }
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
+  return status;
+}
+
+/**
+* @brief  Issue a ping token
+* @param  None
+* @retval : None
+*/
+USB_OTG_STS USB_OTG_HC_DoPing(USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num)
+{
+  USB_OTG_STS               status = USB_OTG_OK;
+  USB_OTG_HCCHAR_TypeDef    hcchar;
+  USB_OTG_HCTSIZn_TypeDef   hctsiz;  
+  
+  hctsiz.d32 = 0;
+  hctsiz.b.dopng = 1;
+  hctsiz.b.pktcnt = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCTSIZ, hctsiz.d32);
+  
+  hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR);
+  hcchar.b.chen = 1;
+  hcchar.b.chdis = 0;
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[hc_num]->HCCHAR, hcchar.d32);
+  return status;  
+}
+
+/**
+* @brief  Stop the device and clean up fifo's
+* @param  None
+* @retval : None
+*/
+void USB_OTG_StopHost(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_HCCHAR_TypeDef  hcchar;
+  uint32_t                i;
+  
+  USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HAINTMSK , 0);
+  USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HAINT,      0xFFFFFFFF);
+  /* Flush out any leftover queued requests. */
+  
+  for (i = 0; i < pdev->cfg.host_channels; i++)
+  {
+    hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[i]->HCCHAR);
+    hcchar.b.chen = 0;
+    hcchar.b.chdis = 1;
+    hcchar.b.epdir = 0;
+    USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[i]->HCCHAR, hcchar.d32);
+  }
+  
+  /* Flush the FIFO */
+  USB_OTG_FlushRxFifo(pdev);
+  USB_OTG_FlushTxFifo(pdev ,  0x10 );  
+}
+#endif
+#ifdef USE_DEVICE_MODE
+/*         PCD Core Layer       */
+
+/**
+* @brief  USB_OTG_InitDevSpeed :Initializes the DevSpd field of DCFG register 
+*         depending the PHY type and the enumeration speed of the device.
+* @param  pdev : Selected device
+* @retval : None
+*/
+void USB_OTG_InitDevSpeed(USB_OTG_CORE_HANDLE *pdev , uint8_t speed)
+{
+  USB_OTG_DCFG_TypeDef   dcfg;
+  
+  dcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCFG);
+  dcfg.b.devspd = speed;
+  USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DCFG, dcfg.d32);
+}
+
+
+/**
+* @brief  USB_OTG_CoreInitDev : Initializes the USB_OTG controller registers 
+*         for device mode
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_CoreInitDev (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS             status       = USB_OTG_OK;
+  USB_OTG_DEPCTL_TypeDef  depctl;
+  uint32_t i;
+  USB_OTG_DCFG_TypeDef    dcfg;
+  USB_OTG_FSIZ_TypeDef    nptxfifosize;
+  USB_OTG_FSIZ_TypeDef    txfifosize;
+  USB_OTG_DIEPMSK_TypeDef msk;
+  USB_OTG_DTHRCTL_TypeDef dthrctl;  
+  
+  depctl.d32 = 0;
+  dcfg.d32 = 0;
+  nptxfifosize.d32 = 0;
+  txfifosize.d32 = 0;
+  msk.d32 = 0;
+  
+  /* Restart the Phy Clock */
+  USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, 0);
+  /* Device configuration register */
+  dcfg.d32 = USB_OTG_READ_REG32( &pdev->regs.DREGS->DCFG);
+  dcfg.b.perfrint = DCFG_FRAME_INTERVAL_80;
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DCFG, dcfg.d32 );
+  
+#ifdef USB_OTG_FS_CORE
+  if(pdev->cfg.coreID == USB_OTG_FS_CORE_ID  )
+  {  
+    
+    /* Set Full speed phy */
+    USB_OTG_InitDevSpeed (pdev , USB_OTG_SPEED_PARAM_FULL);
+    
+    /* set Rx FIFO size */
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_FS_SIZE);
+    
+    /* EP0 TX*/
+    nptxfifosize.b.depth     = TX0_FIFO_FS_SIZE;
+    nptxfifosize.b.startaddr = RX_FIFO_FS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32 );
+    
+    
+    /* EP1 TX*/
+    txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth;
+    txfifosize.b.depth = TX1_FIFO_FS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[0], txfifosize.d32 );
+    
+    
+    /* EP2 TX*/
+    txfifosize.b.startaddr += txfifosize.b.depth;
+    txfifosize.b.depth = TX2_FIFO_FS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[1], txfifosize.d32 );
+    
+    
+    /* EP3 TX*/  
+    txfifosize.b.startaddr += txfifosize.b.depth;
+    txfifosize.b.depth = TX3_FIFO_FS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[2], txfifosize.d32 );
+  }
+#endif
+#ifdef USB_OTG_HS_CORE
+  if(pdev->cfg.coreID == USB_OTG_HS_CORE_ID  )
+  {
+    
+    /* Set High speed phy */
+    
+    if(pdev->cfg.phy_itface  == USB_OTG_ULPI_PHY)
+    {
+      USB_OTG_InitDevSpeed (pdev , USB_OTG_SPEED_PARAM_HIGH);
+    }
+    else /* set High speed phy in Full speed mode */
+    {
+      USB_OTG_InitDevSpeed (pdev , USB_OTG_SPEED_PARAM_HIGH_IN_FULL);
+    }
+    
+    /* set Rx FIFO size */
+    USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GRXFSIZ, RX_FIFO_HS_SIZE);
+    
+    /* EP0 TX*/
+    nptxfifosize.b.depth     = TX0_FIFO_HS_SIZE;
+    nptxfifosize.b.startaddr = RX_FIFO_HS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF0_HNPTXFSIZ, nptxfifosize.d32 );
+    
+    
+    /* EP1 TX*/
+    txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth;
+    txfifosize.b.depth = TX1_FIFO_HS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[0], txfifosize.d32 );
+    
+    
+    /* EP2 TX*/
+    txfifosize.b.startaddr += txfifosize.b.depth;
+    txfifosize.b.depth = TX2_FIFO_HS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[1], txfifosize.d32 );
+    
+    
+    /* EP3 TX*/  
+    txfifosize.b.startaddr += txfifosize.b.depth;
+    txfifosize.b.depth = TX3_FIFO_HS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[2], txfifosize.d32 );
+    
+    /* EP4 TX*/
+    txfifosize.b.startaddr += txfifosize.b.depth;
+    txfifosize.b.depth = TX4_FIFO_HS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[3], txfifosize.d32 );
+    
+    
+    /* EP5 TX*/  
+    txfifosize.b.startaddr += txfifosize.b.depth;
+    txfifosize.b.depth = TX5_FIFO_HS_SIZE;
+    USB_OTG_WRITE_REG32( &pdev->regs.GREGS->DIEPTXF[4], txfifosize.d32 );
+  }
+#endif  
+  /* Flush the FIFOs */
+  USB_OTG_FlushTxFifo(pdev , 0x10); /* all Tx FIFOs */
+  USB_OTG_FlushRxFifo(pdev);
+  /* Clear all pending Device Interrupts */
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DIEPMSK, 0 );
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DOEPMSK, 0 );
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINT, 0xFFFFFFFF );
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINTMSK, 0 );
+  
+  for (i = 0; i < pdev->cfg.dev_endpoints; i++)
+  {
+    depctl.d32 = USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[i]->DIEPCTL);
+    if (depctl.b.epena)
+    {
+      depctl.d32 = 0;
+      depctl.b.epdis = 1;
+      depctl.b.snak = 1;
+    }
+    else
+    {
+      depctl.d32 = 0;
+    }
+    USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPCTL, depctl.d32);
+    USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPTSIZ, 0);
+    USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPINT, 0xFF);
+  }
+  for (i = 0; i <  pdev->cfg.dev_endpoints; i++)
+  {
+    USB_OTG_DEPCTL_TypeDef  depctl;
+    depctl.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[i]->DOEPCTL);
+    if (depctl.b.epena)
+    {
+      depctl.d32 = 0;
+      depctl.b.epdis = 1;
+      depctl.b.snak = 1;
+    }
+    else
+    {
+      depctl.d32 = 0;
+    }
+    USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPCTL, depctl.d32);
+    USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPTSIZ, 0);
+    USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPINT, 0xFF);
+  }
+  msk.d32 = 0;
+  msk.b.txfifoundrn = 1;
+  USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPMSK, msk.d32, msk.d32);
+  
+  if (pdev->cfg.dma_enable == 1)
+  {
+    dthrctl.d32 = 0;
+    dthrctl.b.non_iso_thr_en = 1;
+    dthrctl.b.iso_thr_en = 1;
+    dthrctl.b.tx_thr_len = 64;
+    dthrctl.b.rx_thr_en = 1;
+    dthrctl.b.rx_thr_len = 64;
+    USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DTHRCTL, dthrctl.d32);  
+  }
+  USB_OTG_EnableDevInt(pdev);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_EnableDevInt : Enables the Device mode interrupts
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EnableDevInt(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_GINTMSK_TypeDef  intmsk;
+  
+  intmsk.d32 = 0;
+  
+  /* Disable all interrupts. */
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTMSK, 0);
+  /* Clear any pending interrupts */
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTSTS, 0xBFFFFFFF);
+  /* Enable the common interrupts */
+  USB_OTG_EnableCommonInt(pdev);
+  
+  if (pdev->cfg.dma_enable == 0)
+  {
+    intmsk.b.rxstsqlvl = 1;
+  }
+  
+  /* Enable interrupts matching to the Device mode ONLY */
+  intmsk.b.usbsuspend = 1;
+  intmsk.b.usbreset   = 1;
+  intmsk.b.enumdone   = 1;
+  intmsk.b.inepintr   = 1;
+  intmsk.b.outepintr  = 1;
+  intmsk.b.sofintr    = 1; 
+  
+  intmsk.b.incomplisoin    = 1; 
+  intmsk.b.incomplisoout    = 1;   
+#ifdef VBUS_SENSING_ENABLED
+  intmsk.b.sessreqintr    = 1; 
+  intmsk.b.otgintr    = 1;    
+#endif  
+  USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, intmsk.d32, intmsk.d32);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_GetDeviceSpeed
+*         Get the device speed from the device status register
+* @param  None
+* @retval status
+*/
+enum USB_OTG_SPEED USB_OTG_GetDeviceSpeed (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_DSTS_TypeDef  dsts;
+  enum USB_OTG_SPEED speed = USB_SPEED_UNKNOWN;
+  
+  
+  dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
+  
+  switch (dsts.b.enumspd)
+  {
+  case DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ:
+    speed = USB_SPEED_HIGH;
+    break;
+  case DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ:
+  case DSTS_ENUMSPD_FS_PHY_48MHZ:
+    speed = USB_SPEED_FULL;
+    break;
+    
+  case DSTS_ENUMSPD_LS_PHY_6MHZ:
+    speed = USB_SPEED_LOW;
+    break;
+  }
+  
+  return speed;
+}
+/**
+* @brief  enables EP0 OUT to receive SETUP packets and configures EP0
+*   for transmitting packets
+* @param  None
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS  USB_OTG_EP0Activate(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_STS             status = USB_OTG_OK;
+  USB_OTG_DSTS_TypeDef    dsts;
+  USB_OTG_DEPCTL_TypeDef  diepctl;
+  USB_OTG_DCTL_TypeDef    dctl;
+  
+  dctl.d32 = 0;
+  /* Read the Device Status and Endpoint 0 Control registers */
+  dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
+  diepctl.d32 = USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[0]->DIEPCTL);
+  /* Set the MPS of the IN EP based on the enumeration speed */
+  switch (dsts.b.enumspd)
+  {
+  case DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ:
+  case DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ:
+  case DSTS_ENUMSPD_FS_PHY_48MHZ:
+    diepctl.b.mps = DEP0CTL_MPS_64;
+    break;
+  case DSTS_ENUMSPD_LS_PHY_6MHZ:
+    diepctl.b.mps = DEP0CTL_MPS_8;
+    break;
+  }
+  USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[0]->DIEPCTL, diepctl.d32);
+  dctl.b.cgnpinnak = 1;
+  USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, dctl.d32, dctl.d32);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_EPActivate : Activates an EP
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EPActivate(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_DEPCTL_TypeDef  depctl;
+  USB_OTG_DAINT_TypeDef  daintmsk;
+  __IO uint32_t *addr;
+  
+  
+  depctl.d32 = 0;
+  daintmsk.d32 = 0;
+  /* Read DEPCTLn register */
+  if (ep->is_in == 1)
+  {
+    addr = &pdev->regs.INEP_REGS[ep->num]->DIEPCTL;
+    daintmsk.ep.in = 1 << ep->num;
+  }
+  else
+  {
+    addr = &pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL;
+    daintmsk.ep.out = 1 << ep->num;
+  }
+  /* If the EP is already active don't change the EP Control
+  * register. */
+  depctl.d32 = USB_OTG_READ_REG32(addr);
+  if (!depctl.b.usbactep)
+  {
+    depctl.b.mps    = ep->maxpacket;
+    depctl.b.eptype = ep->type;
+    depctl.b.txfnum = ep->tx_fifo_num;
+    depctl.b.setd0pid = 1;
+    depctl.b.usbactep = 1;
+    USB_OTG_WRITE_REG32(addr, depctl.d32);
+  }
+  /* Enable the Interrupt for this EP */
+#ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED
+  if((ep->num == 1)&&(pdev->cfg.coreID == USB_OTG_HS_CORE_ID))
+  {
+    USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DEACHMSK, 0, daintmsk.d32);
+  }
+  else
+#endif   
+    USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DAINTMSK, 0, daintmsk.d32);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_EPDeactivate : Deactivates an EP
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EPDeactivate(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_DEPCTL_TypeDef  depctl;
+  USB_OTG_DAINT_TypeDef  daintmsk;
+  __IO uint32_t *addr;
+  
+  depctl.d32 = 0;
+  daintmsk.d32 = 0;  
+  /* Read DEPCTLn register */
+  if (ep->is_in == 1)
+  {
+    addr = &pdev->regs.INEP_REGS[ep->num]->DIEPCTL;
+    daintmsk.ep.in = 1 << ep->num;
+  }
+  else
+  {
+    addr = &pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL;
+    daintmsk.ep.out = 1 << ep->num;
+  }
+  depctl.b.usbactep = 0;
+  USB_OTG_WRITE_REG32(addr, depctl.d32);
+  /* Disable the Interrupt for this EP */
+  
+#ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED
+  if((ep->num == 1)&&(pdev->cfg.coreID == USB_OTG_HS_CORE_ID))
+  {
+    USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DEACHMSK, daintmsk.d32, 0);
+  }
+  else
+#endif    
+    USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DAINTMSK, daintmsk.d32, 0);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_EPStartXfer : Handle the setup for data xfer for an EP and 
+*         starts the xfer
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EPStartXfer(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_DEPCTL_TypeDef     depctl;
+  USB_OTG_DEPXFRSIZ_TypeDef  deptsiz;
+  USB_OTG_DSTS_TypeDef       dsts;    
+  uint32_t fifoemptymsk = 0;  
+  
+  depctl.d32 = 0;
+  deptsiz.d32 = 0;
+  /* IN endpoint */
+  if (ep->is_in == 1)
+  {
+    depctl.d32  = USB_OTG_READ_REG32(&(pdev->regs.INEP_REGS[ep->num]->DIEPCTL));
+    deptsiz.d32 = USB_OTG_READ_REG32(&(pdev->regs.INEP_REGS[ep->num]->DIEPTSIZ));
+    /* Zero Length Packet? */
+    if (ep->xfer_len == 0)
+    {
+      deptsiz.b.xfersize = 0;
+      deptsiz.b.pktcnt = 1;
+    }
+    else
+    {
+      /* Program the transfer size and packet count
+      * as follows: xfersize = N * maxpacket +
+      * short_packet pktcnt = N + (short_packet
+      * exist ? 1 : 0)
+      */
+      deptsiz.b.xfersize = ep->xfer_len;
+      deptsiz.b.pktcnt = (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket;
+      
+      if (ep->type == EP_TYPE_ISOC)
+      {
+        deptsiz.b.mc = 1;
+      }       
+    }
+    USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPTSIZ, deptsiz.d32);
+    
+    if (pdev->cfg.dma_enable == 1)
+    {
+      USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPDMA, ep->dma_addr);
+    }
+    else
+    {
+      if (ep->type != EP_TYPE_ISOC)
+      {
+        /* Enable the Tx FIFO Empty Interrupt for this EP */
+        if (ep->xfer_len > 0)
+        {
+          fifoemptymsk = 1 << ep->num;
+          USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPEMPMSK, 0, fifoemptymsk);
+        }
+      }
+    }
+    
+    
+    if (ep->type == EP_TYPE_ISOC)
+    {
+      dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
+      
+      if (((dsts.b.soffn)&0x1) == 0)
+      {
+        depctl.b.setd1pid = 1;
+      }
+      else
+      {
+        depctl.b.setd0pid = 1;
+      }
+    } 
+    
+    /* EP enable, IN data in FIFO */
+    depctl.b.cnak = 1;
+    depctl.b.epena = 1;
+    USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPCTL, depctl.d32);
+    
+    if (ep->type == EP_TYPE_ISOC)
+    {
+      USB_OTG_WritePacket(pdev, ep->xfer_buff, ep->num, ep->xfer_len);   
+    }    
+  }
+  else
+  {
+    /* OUT endpoint */
+    depctl.d32  = USB_OTG_READ_REG32(&(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL));
+    deptsiz.d32 = USB_OTG_READ_REG32(&(pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ));
+    /* Program the transfer size and packet count as follows:
+    * pktcnt = N
+    * xfersize = N * maxpacket
+    */
+    if (ep->xfer_len == 0)
+    {
+      deptsiz.b.xfersize = ep->maxpacket;
+      deptsiz.b.pktcnt = 1;
+    }
+    else
+    {
+      deptsiz.b.pktcnt = (ep->xfer_len + (ep->maxpacket - 1)) / ep->maxpacket;
+      deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket;
+    }
+    USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ, deptsiz.d32);
+    
+    if (pdev->cfg.dma_enable == 1)
+    {
+      USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPDMA, ep->dma_addr);
+    }
+    
+    if (ep->type == EP_TYPE_ISOC)
+    {
+      if (ep->even_odd_frame)
+      {
+        depctl.b.setd1pid = 1;
+      }
+      else
+      {
+        depctl.b.setd0pid = 1;
+      }
+    }
+    /* EP enable */
+    depctl.b.cnak = 1;
+    depctl.b.epena = 1;
+    USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL, depctl.d32);
+  }
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_EP0StartXfer : Handle the setup for a data xfer for EP0 and 
+*         starts the xfer
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EP0StartXfer(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
+{
+  USB_OTG_STS                 status = USB_OTG_OK;
+  USB_OTG_DEPCTL_TypeDef      depctl;
+  USB_OTG_DEP0XFRSIZ_TypeDef  deptsiz;
+  USB_OTG_INEPREGS          *in_regs;
+  uint32_t fifoemptymsk = 0;
+  
+  depctl.d32   = 0;
+  deptsiz.d32  = 0;
+  /* IN endpoint */
+  if (ep->is_in == 1)
+  {
+    in_regs = pdev->regs.INEP_REGS[0];
+    depctl.d32  = USB_OTG_READ_REG32(&in_regs->DIEPCTL);
+    deptsiz.d32 = USB_OTG_READ_REG32(&in_regs->DIEPTSIZ);
+    /* Zero Length Packet? */
+    if (ep->xfer_len == 0)
+    {
+      deptsiz.b.xfersize = 0;
+      deptsiz.b.pktcnt = 1;
+      
+    }
+    else
+    {
+      if (ep->xfer_len > ep->maxpacket)
+      {
+        ep->xfer_len = ep->maxpacket;
+        deptsiz.b.xfersize = ep->maxpacket;
+      }
+      else
+      {
+        deptsiz.b.xfersize = ep->xfer_len;
+      }
+      deptsiz.b.pktcnt = 1;
+    }
+    USB_OTG_WRITE_REG32(&in_regs->DIEPTSIZ, deptsiz.d32);
+    
+    if (pdev->cfg.dma_enable == 1)
+    {
+      USB_OTG_WRITE_REG32(&pdev->regs.INEP_REGS[ep->num]->DIEPDMA, ep->dma_addr);  
+    }
+    
+    /* EP enable, IN data in FIFO */
+    depctl.b.cnak = 1;
+    depctl.b.epena = 1;
+    USB_OTG_WRITE_REG32(&in_regs->DIEPCTL, depctl.d32);
+    
+    
+    
+    if (pdev->cfg.dma_enable == 0)
+    {
+      /* Enable the Tx FIFO Empty Interrupt for this EP */
+      if (ep->xfer_len > 0)
+      {
+        {
+          fifoemptymsk |= 1 << ep->num;
+          USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPEMPMSK, 0, fifoemptymsk);
+        }
+      }
+    }
+  }
+  else
+  {
+    /* OUT endpoint */
+    depctl.d32  = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
+    deptsiz.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ);
+    /* Program the transfer size and packet count as follows:
+    * xfersize = N * (maxpacket + 4 - (maxpacket % 4))
+    * pktcnt = N           */
+    if (ep->xfer_len == 0)
+    {
+      deptsiz.b.xfersize = ep->maxpacket;
+      deptsiz.b.pktcnt = 1;
+    }
+    else
+    {
+      ep->xfer_len = ep->maxpacket;
+      deptsiz.b.xfersize = ep->maxpacket;
+      deptsiz.b.pktcnt = 1;
+    }
+    USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPTSIZ, deptsiz.d32);
+    if (pdev->cfg.dma_enable == 1)
+    {
+      USB_OTG_WRITE_REG32(&pdev->regs.OUTEP_REGS[ep->num]->DOEPDMA, ep->dma_addr);
+    }
+    /* EP enable */
+    depctl.b.cnak = 1;
+    depctl.b.epena = 1;
+    USB_OTG_WRITE_REG32 (&(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL), depctl.d32);
+    
+  }
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_EPSetStall : Set the EP STALL
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EPSetStall(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_DEPCTL_TypeDef  depctl;
+  __IO uint32_t *depctl_addr;
+  
+  depctl.d32 = 0;
+  if (ep->is_in == 1)
+  {
+    depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
+    depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
+    /* set the disable and stall bits */
+    if (depctl.b.epena)
+    {
+      depctl.b.epdis = 1;
+    }
+    depctl.b.stall = 1;
+    USB_OTG_WRITE_REG32(depctl_addr, depctl.d32);
+  }
+  else
+  {
+    depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
+    depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
+    /* set the stall bit */
+    depctl.b.stall = 1;
+    USB_OTG_WRITE_REG32(depctl_addr, depctl.d32);
+  }
+  return status;
+}
+
+
+/**
+* @brief  Clear the EP STALL
+* @param  pdev : Selected device
+* @retval USB_OTG_STS : status
+*/
+USB_OTG_STS USB_OTG_EPClearStall(USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep)
+{
+  USB_OTG_STS status = USB_OTG_OK;
+  USB_OTG_DEPCTL_TypeDef  depctl;
+  __IO uint32_t *depctl_addr;
+  
+  depctl.d32 = 0;
+  
+  if (ep->is_in == 1)
+  {
+    depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
+  }
+  else
+  {
+    depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
+  }
+  depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
+  /* clear the stall bits */
+  depctl.b.stall = 0;
+  if (ep->type == EP_TYPE_INTR || ep->type == EP_TYPE_BULK)
+  {
+    depctl.b.setd0pid = 1; /* DATA0 */
+  }
+  USB_OTG_WRITE_REG32(depctl_addr, depctl.d32);
+  return status;
+}
+
+
+/**
+* @brief  USB_OTG_ReadDevAllOutEp_itr : returns OUT endpoint interrupt bits
+* @param  pdev : Selected device
+* @retval OUT endpoint interrupt bits
+*/
+uint32_t USB_OTG_ReadDevAllOutEp_itr(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint32_t v;
+  v  = USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINT);
+  v &= USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINTMSK);
+  return ((v & 0xffff0000) >> 16);
+}
+
+
+/**
+* @brief  USB_OTG_ReadDevOutEP_itr : returns Device OUT EP Interrupt register
+* @param  pdev : Selected device
+* @param  ep : end point number
+* @retval Device OUT EP Interrupt register
+*/
+uint32_t USB_OTG_ReadDevOutEP_itr(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
+{
+  uint32_t v;
+  v  = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[epnum]->DOEPINT);
+  v &= USB_OTG_READ_REG32(&pdev->regs.DREGS->DOEPMSK);
+  return v;
+}
+
+
+/**
+* @brief  USB_OTG_ReadDevAllInEPItr : Get int status register
+* @param  pdev : Selected device
+* @retval int status register
+*/
+uint32_t USB_OTG_ReadDevAllInEPItr(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint32_t v;
+  v = USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINT);
+  v &= USB_OTG_READ_REG32(&pdev->regs.DREGS->DAINTMSK);
+  return (v & 0xffff);
+}
+
+/**
+* @brief  configures EPO to receive SETUP packets
+* @param  None
+* @retval : None
+*/
+void USB_OTG_EP0_OutStart(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_DEP0XFRSIZ_TypeDef  doeptsize0;
+  doeptsize0.d32 = 0;
+  doeptsize0.b.supcnt = 3;
+  doeptsize0.b.pktcnt = 1;
+  doeptsize0.b.xfersize = 8 * 3;
+  USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[0]->DOEPTSIZ, doeptsize0.d32 );
+  
+  if (pdev->cfg.dma_enable == 1)
+  {
+    USB_OTG_DEPCTL_TypeDef  doepctl;
+    doepctl.d32 = 0;
+    USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[0]->DOEPDMA, 
+                        (uint32_t)&pdev->dev.setup_packet);
+    
+    /* EP enable */
+    doepctl.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[0]->DOEPCTL);
+    doepctl.b.epena = 1;
+    doepctl.d32 = 0x80008000;
+    USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[0]->DOEPCTL, doepctl.d32);
+  }
+}
+
+/**
+* @brief  USB_OTG_RemoteWakeup : active remote wakeup signalling
+* @param  None
+* @retval : None
+*/
+void USB_OTG_ActiveRemoteWakeup(USB_OTG_CORE_HANDLE *pdev)
+{
+  
+  USB_OTG_DCTL_TypeDef     dctl;
+  USB_OTG_DSTS_TypeDef     dsts;
+  USB_OTG_PCGCCTL_TypeDef  power;  
+  
+  if (pdev->dev.DevRemoteWakeup) 
+  {
+    dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
+    if(dsts.b.suspsts == 1)
+    {
+      if(pdev->cfg.low_power)
+      {
+        /* un-gate USB Core clock */
+        power.d32 = USB_OTG_READ_REG32(&pdev->regs.PCGCCTL);
+        power.b.gatehclk = 0;
+        power.b.stoppclk = 0;
+        USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);
+      }   
+      /* active Remote wakeup signaling */
+      dctl.d32 = 0;
+      dctl.b.rmtwkupsig = 1;
+      USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, 0, dctl.d32);
+      USB_OTG_BSP_mDelay(5);
+      USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, dctl.d32, 0 );
+    }
+  }
+}
+
+
+/**
+* @brief  USB_OTG_UngateClock : active USB Core clock
+* @param  None
+* @retval : None
+*/
+void USB_OTG_UngateClock(USB_OTG_CORE_HANDLE *pdev)
+{
+  if(pdev->cfg.low_power)
+  {
+    
+    USB_OTG_DSTS_TypeDef     dsts;
+    USB_OTG_PCGCCTL_TypeDef  power; 
+    
+    dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
+    
+    if(dsts.b.suspsts == 1)
+    {
+      /* un-gate USB Core clock */
+      power.d32 = USB_OTG_READ_REG32(&pdev->regs.PCGCCTL);
+      power.b.gatehclk = 0;
+      power.b.stoppclk = 0;
+      USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);
+      
+    }
+  }
+}
+
+/**
+* @brief  Stop the device and clean up fifo's
+* @param  None
+* @retval : None
+*/
+void USB_OTG_StopDevice(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint32_t i;
+  
+  pdev->dev.device_status = 1;
+  
+  for (i = 0; i < pdev->cfg.dev_endpoints ; i++)
+  {
+    USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPINT, 0xFF);
+    USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPINT, 0xFF);
+  }
+  
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DIEPMSK, 0 );
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DOEPMSK, 0 );
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINTMSK, 0 );
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINT, 0xFFFFFFFF );  
+  
+  /* Flush the FIFO */
+  USB_OTG_FlushRxFifo(pdev);
+  USB_OTG_FlushTxFifo(pdev ,  0x10 );  
+}
+
+/**
+* @brief  returns the EP Status
+* @param  pdev : Selected device
+*         ep : endpoint structure
+* @retval : EP status
+*/
+
+uint32_t USB_OTG_GetEPStatus(USB_OTG_CORE_HANDLE *pdev ,USB_OTG_EP *ep)
+{
+  USB_OTG_DEPCTL_TypeDef  depctl;
+  __IO uint32_t *depctl_addr;
+  uint32_t Status = 0;  
+  
+  depctl.d32 = 0;
+  if (ep->is_in == 1)
+  {
+    depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
+    depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
+    
+    if (depctl.b.stall == 1)  
+      Status = USB_OTG_EP_TX_STALL;
+    else if (depctl.b.naksts == 1)
+      Status = USB_OTG_EP_TX_NAK;
+    else 
+      Status = USB_OTG_EP_TX_VALID;     
+    
+  }
+  else
+  {
+    depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
+    depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
+    if (depctl.b.stall == 1)  
+      Status = USB_OTG_EP_RX_STALL;
+    else if (depctl.b.naksts == 1)
+      Status = USB_OTG_EP_RX_NAK;
+    else 
+      Status = USB_OTG_EP_RX_VALID; 
+  } 
+  
+  /* Return the current status */
+  return Status;
+}
+
+/**
+* @brief  Set the EP Status
+* @param  pdev : Selected device
+*         Status : new Status
+*         ep : EP structure
+* @retval : None
+*/
+void USB_OTG_SetEPStatus (USB_OTG_CORE_HANDLE *pdev , USB_OTG_EP *ep , uint32_t Status)
+{
+  USB_OTG_DEPCTL_TypeDef  depctl;
+  __IO uint32_t *depctl_addr;
+  
+  depctl.d32 = 0;
+  
+  /* Process for IN endpoint */
+  if (ep->is_in == 1)
+  {
+    depctl_addr = &(pdev->regs.INEP_REGS[ep->num]->DIEPCTL);
+    depctl.d32 = USB_OTG_READ_REG32(depctl_addr);
+    
+    if (Status == USB_OTG_EP_TX_STALL)  
+    {
+      USB_OTG_EPSetStall(pdev, ep); return;
+    }
+    else if (Status == USB_OTG_EP_TX_NAK)
+      depctl.b.snak = 1;
+    else if (Status == USB_OTG_EP_TX_VALID)
+    {
+      if (depctl.b.stall == 1)
+      {  
+        ep->even_odd_frame = 0;
+        USB_OTG_EPClearStall(pdev, ep);
+        return;
+      }      
+      depctl.b.cnak = 1;
+      depctl.b.usbactep = 1; 
+      depctl.b.epena = 1;
+    }
+    else if (Status == USB_OTG_EP_TX_DIS)
+      depctl.b.usbactep = 0;
+  } 
+  else /* Process for OUT endpoint */
+  {
+    depctl_addr = &(pdev->regs.OUTEP_REGS[ep->num]->DOEPCTL);
+    depctl.d32 = USB_OTG_READ_REG32(depctl_addr);    
+    
+    if (Status == USB_OTG_EP_RX_STALL)  {
+      depctl.b.stall = 1;
+    }
+    else if (Status == USB_OTG_EP_RX_NAK)
+      depctl.b.snak = 1;
+    else if (Status == USB_OTG_EP_RX_VALID)
+    {
+      if (depctl.b.stall == 1)
+      {  
+        ep->even_odd_frame = 0;
+        USB_OTG_EPClearStall(pdev, ep);
+        return;
+      }  
+      depctl.b.cnak = 1;
+      depctl.b.usbactep = 1;    
+      depctl.b.epena = 1;
+    }
+    else if (Status == USB_OTG_EP_RX_DIS)
+    {
+      depctl.b.usbactep = 0;    
+    }
+  }
+  
+  USB_OTG_WRITE_REG32(depctl_addr, depctl.d32); 
+}
+
+#endif
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/src/usb_dcd.c
@@ -1,0 +1,478 @@
+/**
+  ******************************************************************************
+  * @file    usb_dcd.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Peripheral Device Interface Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_dcd.h"
+#include "usb_bsp.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+* @{
+*/
+
+/** @defgroup USB_DCD 
+* @brief This file is the interface between EFSL ans Host mass-storage class
+* @{
+*/
+
+
+/** @defgroup USB_DCD_Private_Defines
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+
+/** @defgroup USB_DCD_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_Private_Variables
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_Private_FunctionPrototypes
+* @{
+*/ 
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_Private_Functions
+* @{
+*/ 
+
+
+
+void DCD_Init(USB_OTG_CORE_HANDLE *pdev , 
+              USB_OTG_CORE_ID_TypeDef coreID)
+{
+  uint32_t i;
+  USB_OTG_EP *ep;
+  
+  USB_OTG_SelectCore (pdev , coreID);
+  
+  pdev->dev.device_status = USB_OTG_DEFAULT;
+  pdev->dev.device_address = 0;
+  
+  /* Init ep structure */
+  for (i = 0; i < pdev->cfg.dev_endpoints ; i++)
+  {
+    ep = &pdev->dev.in_ep[i];
+    /* Init ep structure */
+    ep->is_in = 1;
+    ep->num = i;
+    ep->tx_fifo_num = i;
+    /* Control until ep is actvated */
+    ep->type = EP_TYPE_CTRL;
+    ep->maxpacket =  USB_OTG_MAX_EP0_SIZE;
+    ep->xfer_buff = 0;
+    ep->xfer_len = 0;
+  }
+  
+  for (i = 0; i < pdev->cfg.dev_endpoints; i++)
+  {
+    ep = &pdev->dev.out_ep[i];
+    /* Init ep structure */
+    ep->is_in = 0;
+    ep->num = i;
+    ep->tx_fifo_num = i;
+    /* Control until ep is activated */
+    ep->type = EP_TYPE_CTRL;
+    ep->maxpacket = USB_OTG_MAX_EP0_SIZE;
+    ep->xfer_buff = 0;
+    ep->xfer_len = 0;
+  }
+  
+  USB_OTG_DisableGlobalInt(pdev);
+  
+  /*Init the Core (common init.) */
+  USB_OTG_CoreInit(pdev);
+
+
+  /* Force Device Mode*/
+  USB_OTG_SetCurrentMode(pdev, DEVICE_MODE);
+  
+  /* Init Device */
+  USB_OTG_CoreInitDev(pdev);
+  
+  
+  /* Enable USB Global interrupt */
+  USB_OTG_EnableGlobalInt(pdev);
+}
+
+
+/**
+* @brief  Configure an EP
+* @param pdev : Device instance
+* @param epdesc : Endpoint Descriptor
+* @retval : status
+*/
+uint32_t DCD_EP_Open(USB_OTG_CORE_HANDLE *pdev , 
+                     uint8_t ep_addr,
+                     uint16_t ep_mps,
+                     uint8_t ep_type)
+{
+  USB_OTG_EP *ep;
+  
+  if ((ep_addr & 0x80) == 0x80)
+  {
+    ep = &pdev->dev.in_ep[ep_addr & 0x7F];
+  }
+  else
+  {
+    ep = &pdev->dev.out_ep[ep_addr & 0x7F];
+  }
+  ep->num   = ep_addr & 0x7F;
+  
+  ep->is_in = (0x80 & ep_addr) != 0;
+  ep->maxpacket = ep_mps;
+  ep->type = ep_type;
+  if (ep->is_in)
+  {
+    /* Assign a Tx FIFO */
+    ep->tx_fifo_num = ep->num;
+  }
+  /* Set initial data PID. */
+  if (ep_type == USB_OTG_EP_BULK )
+  {
+    ep->data_pid_start = 0;
+  }
+  USB_OTG_EPActivate(pdev , ep );
+  return 0;
+}
+/**
+* @brief  called when an EP is disabled
+* @param pdev: device instance
+* @param ep_addr: endpoint address
+* @retval : status
+*/
+uint32_t DCD_EP_Close(USB_OTG_CORE_HANDLE *pdev , uint8_t  ep_addr)
+{
+  USB_OTG_EP *ep;
+  
+  if ((ep_addr&0x80) == 0x80)
+  {
+    ep = &pdev->dev.in_ep[ep_addr & 0x7F];
+  }
+  else
+  {
+    ep = &pdev->dev.out_ep[ep_addr & 0x7F];
+  }
+  ep->num   = ep_addr & 0x7F;
+  ep->is_in = (0x80 & ep_addr) != 0;
+  USB_OTG_EPDeactivate(pdev , ep );
+  return 0;
+}
+
+
+/**
+* @brief  DCD_EP_PrepareRx
+* @param pdev: device instance
+* @param ep_addr: endpoint address
+* @param pbuf: pointer to Rx buffer
+* @param buf_len: data length
+* @retval : status
+*/
+uint32_t   DCD_EP_PrepareRx( USB_OTG_CORE_HANDLE *pdev,
+                            uint8_t   ep_addr,
+                            uint8_t *pbuf,                        
+                            uint16_t  buf_len)
+{
+  USB_OTG_EP *ep;
+  
+  ep = &pdev->dev.out_ep[ep_addr & 0x7F];
+  
+  /*setup and start the Xfer */
+  ep->xfer_buff = pbuf;  
+  ep->xfer_len = buf_len;
+  ep->xfer_count = 0;
+  ep->is_in = 0;
+  ep->num = ep_addr & 0x7F;
+  
+  if (pdev->cfg.dma_enable == 1)
+  {
+    ep->dma_addr = (uint32_t)pbuf;  
+  }
+  
+  if ( ep->num == 0 )
+  {
+    USB_OTG_EP0StartXfer(pdev , ep);
+  }
+  else
+  {
+    USB_OTG_EPStartXfer(pdev, ep );
+  }
+  return 0;
+}
+
+/**
+* @brief  Transmit data over USB
+* @param pdev: device instance
+* @param ep_addr: endpoint address
+* @param pbuf: pointer to Tx buffer
+* @param buf_len: data length
+* @retval : status
+*/
+uint32_t  DCD_EP_Tx ( USB_OTG_CORE_HANDLE *pdev,
+                     uint8_t   ep_addr,
+                     uint8_t   *pbuf,
+                     uint32_t   buf_len)
+{
+  USB_OTG_EP *ep;
+  
+  ep = &pdev->dev.in_ep[ep_addr & 0x7F];
+  
+  /* Setup and start the Transfer */
+  ep->is_in = 1;
+  ep->num = ep_addr & 0x7F;  
+  ep->xfer_buff = pbuf;
+  ep->dma_addr = (uint32_t)pbuf;  
+  ep->xfer_count = 0;
+  ep->xfer_len  = buf_len;
+  
+  if ( ep->num == 0 )
+  {
+    USB_OTG_EP0StartXfer(pdev , ep);
+  }
+  else
+  {
+    USB_OTG_EPStartXfer(pdev, ep );
+  }
+  return 0;
+}
+
+
+/**
+* @brief  Stall an endpoint.
+* @param pdev: device instance
+* @param epnum: endpoint address
+* @retval : status
+*/
+uint32_t  DCD_EP_Stall (USB_OTG_CORE_HANDLE *pdev, uint8_t   epnum)
+{
+  USB_OTG_EP *ep;
+  if ((0x80 & epnum) == 0x80)
+  {
+    ep = &pdev->dev.in_ep[epnum & 0x7F];
+  }
+  else
+  {
+    ep = &pdev->dev.out_ep[epnum];
+  }
+
+  ep->is_stall = 1;
+  ep->num   = epnum & 0x7F;
+  ep->is_in = ((epnum & 0x80) == 0x80);
+  
+  USB_OTG_EPSetStall(pdev , ep);
+  return (0);
+}
+
+
+/**
+* @brief  Clear stall condition on endpoints.
+* @param pdev: device instance
+* @param epnum: endpoint address
+* @retval : status
+*/
+uint32_t  DCD_EP_ClrStall (USB_OTG_CORE_HANDLE *pdev, uint8_t epnum)
+{
+  USB_OTG_EP *ep;
+  if ((0x80 & epnum) == 0x80)
+  {
+    ep = &pdev->dev.in_ep[epnum & 0x7F];    
+  }
+  else
+  {
+    ep = &pdev->dev.out_ep[epnum];
+  }
+  
+  ep->is_stall = 0;  
+  ep->num   = epnum & 0x7F;
+  ep->is_in = ((epnum & 0x80) == 0x80);
+  
+  USB_OTG_EPClearStall(pdev , ep);
+  return (0);
+}
+
+
+/**
+* @brief  This Function flushes the FIFOs.
+* @param pdev: device instance
+* @param epnum: endpoint address
+* @retval : status
+*/
+uint32_t  DCD_EP_Flush (USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
+{
+
+  if ((epnum & 0x80) == 0x80)
+  {
+    USB_OTG_FlushTxFifo(pdev, epnum & 0x7F);
+  }
+  else
+  {
+    USB_OTG_FlushRxFifo(pdev);
+  }
+
+  return (0);
+}
+
+
+/**
+* @brief  This Function set USB device address
+* @param pdev: device instance
+* @param address: new device address
+* @retval : status
+*/
+void  DCD_EP_SetAddress (USB_OTG_CORE_HANDLE *pdev, uint8_t address)
+{
+  USB_OTG_DCFG_TypeDef  dcfg;
+  dcfg.d32 = 0;
+  dcfg.b.devaddr = address;
+  USB_OTG_MODIFY_REG32( &pdev->regs.DREGS->DCFG, 0, dcfg.d32);
+}
+
+/**
+* @brief  Connect device (enable internal pull-up)
+* @param pdev: device instance
+* @retval : None
+*/
+void  DCD_DevConnect (USB_OTG_CORE_HANDLE *pdev)
+{
+#ifndef USE_OTG_MODE
+  USB_OTG_DCTL_TypeDef  dctl;
+  dctl.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCTL);
+  /* Connect device */
+  dctl.b.sftdiscon  = 0;
+  USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DCTL, dctl.d32);
+  USB_OTG_BSP_mDelay(3);
+#endif
+}
+
+
+/**
+* @brief  Disconnect device (disable internal pull-up)
+* @param pdev: device instance
+* @retval : None
+*/
+void  DCD_DevDisconnect (USB_OTG_CORE_HANDLE *pdev)
+{
+#ifndef USE_OTG_MODE
+  USB_OTG_DCTL_TypeDef  dctl;
+  dctl.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCTL);
+  /* Disconnect device for 3ms */
+  dctl.b.sftdiscon  = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DCTL, dctl.d32);
+  USB_OTG_BSP_mDelay(3);
+#endif
+}
+
+
+/**
+* @brief  returns the EP Status
+* @param  pdev : Selected device
+*         epnum : endpoint address
+* @retval : EP status
+*/
+
+uint32_t DCD_GetEPStatus(USB_OTG_CORE_HANDLE *pdev ,uint8_t epnum)
+{
+  USB_OTG_EP *ep;
+  uint32_t Status = 0;  
+  
+  if ((0x80 & epnum) == 0x80)
+  {
+    ep = &pdev->dev.in_ep[epnum & 0x7F];    
+  }
+  else
+  {
+    ep = &pdev->dev.out_ep[epnum];
+  }
+  
+  Status = USB_OTG_GetEPStatus(pdev ,ep);
+
+  /* Return the current status */
+  return Status;
+}
+
+/**
+* @brief  Set the EP Status
+* @param  pdev : Selected device
+*         Status : new Status
+*         epnum : EP address
+* @retval : None
+*/
+void DCD_SetEPStatus (USB_OTG_CORE_HANDLE *pdev , uint8_t epnum , uint32_t Status)
+{
+  USB_OTG_EP *ep;
+  
+  if ((0x80 & epnum) == 0x80)
+  {
+    ep = &pdev->dev.in_ep[epnum & 0x7F];    
+  }
+  else
+  {
+    ep = &pdev->dev.out_ep[epnum];
+  }
+  
+   USB_OTG_SetEPStatus(pdev ,ep , Status);
+}
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/src/usb_dcd_int.c
@@ -1,0 +1,869 @@
+/**
+  ******************************************************************************
+  * @file    usb_dcd_int.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Peripheral Device interrupt subroutines
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_dcd_int.h"
+/** @addtogroup USB_OTG_DRIVER
+* @{
+*/
+
+/** @defgroup USB_DCD_INT 
+* @brief This file contains the interrupt subroutines for the Device mode.
+* @{
+*/
+
+
+/** @defgroup USB_DCD_INT_Private_Defines
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_INT_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+
+/** @defgroup USB_DCD_INT_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_INT_Private_Variables
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_INT_Private_FunctionPrototypes
+* @{
+*/ 
+/* static functions */
+static uint32_t DCD_ReadDevInEP (USB_OTG_CORE_HANDLE *pdev, uint8_t epnum);
+
+/* Interrupt Handlers */
+static uint32_t DCD_HandleInEP_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_HandleOutEP_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_HandleSof_ISR(USB_OTG_CORE_HANDLE *pdev);
+
+static uint32_t DCD_HandleRxStatusQueueLevel_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_WriteEmptyTxFifo(USB_OTG_CORE_HANDLE *pdev , uint32_t epnum);
+
+static uint32_t DCD_HandleUsbReset_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_HandleEnumDone_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_HandleResume_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_HandleUSBSuspend_ISR(USB_OTG_CORE_HANDLE *pdev);
+
+static uint32_t DCD_IsoINIncomplete_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_IsoOUTIncomplete_ISR(USB_OTG_CORE_HANDLE *pdev);
+#ifdef VBUS_SENSING_ENABLED
+static uint32_t DCD_SessionRequest_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t DCD_OTG_ISR(USB_OTG_CORE_HANDLE *pdev);
+#endif
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_DCD_INT_Private_Functions
+* @{
+*/ 
+
+
+#ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED  
+/**
+* @brief  USBD_OTG_EP1OUT_ISR_Handler
+*         handles all USB Interrupts
+* @param  pdev: device instance
+* @retval status
+*/
+uint32_t USBD_OTG_EP1OUT_ISR_Handler (USB_OTG_CORE_HANDLE *pdev)
+{
+  
+  USB_OTG_DOEPINTn_TypeDef  doepint;
+  USB_OTG_DEPXFRSIZ_TypeDef  deptsiz;  
+  
+  doepint.d32 = USB_OTG_READ_REG32(&pdev->regs.OUTEP_REGS[1]->DOEPINT);
+  doepint.d32&= USB_OTG_READ_REG32(&pdev->regs.DREGS->DOUTEP1MSK);
+  
+  /* Transfer complete */
+  if ( doepint.b.xfercompl )
+  {
+    /* Clear the bit in DOEPINTn for this interrupt */
+    CLEAR_OUT_EP_INTR(1, xfercompl);
+    if (pdev->cfg.dma_enable == 1)
+    {
+      deptsiz.d32 = USB_OTG_READ_REG32(&(pdev->regs.OUTEP_REGS[1]->DOEPTSIZ));
+      /*ToDo : handle more than one single MPS size packet */
+      pdev->dev.out_ep[1].xfer_count = pdev->dev.out_ep[1].maxpacket - \
+        deptsiz.b.xfersize;
+    }    
+    /* Inform upper layer: data ready */
+    /* RX COMPLETE */
+    USBD_DCD_INT_fops->DataOutStage(pdev , 1);
+    
+  }
+  
+  /* Endpoint disable  */
+  if ( doepint.b.epdisabled )
+  {
+    /* Clear the bit in DOEPINTn for this interrupt */
+    CLEAR_OUT_EP_INTR(1, epdisabled);
+  }
+
+  return 1;
+}
+
+/**
+* @brief  USBD_OTG_EP1IN_ISR_Handler
+*         handles all USB Interrupts
+* @param  pdev: device instance
+* @retval status
+*/
+uint32_t USBD_OTG_EP1IN_ISR_Handler (USB_OTG_CORE_HANDLE *pdev)
+{
+  
+  USB_OTG_DIEPINTn_TypeDef  diepint;
+  uint32_t fifoemptymsk, msk, emp;
+  
+  msk = USB_OTG_READ_REG32(&pdev->regs.DREGS->DINEP1MSK);
+  emp = USB_OTG_READ_REG32(&pdev->regs.DREGS->DIEPEMPMSK);
+  msk |= ((emp >> 1 ) & 0x1) << 7;
+  diepint.d32  = USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[1]->DIEPINT) & msk;  
+  
+  if ( diepint.b.xfercompl )
+  {
+    fifoemptymsk = 0x1 << 1;
+    USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPEMPMSK, fifoemptymsk, 0);
+    CLEAR_IN_EP_INTR(1, xfercompl);
+    /* TX COMPLETE */
+    USBD_DCD_INT_fops->DataInStage(pdev , 1);
+  }
+  if ( diepint.b.epdisabled )
+  {
+    CLEAR_IN_EP_INTR(1, epdisabled);
+  }  
+  if ( diepint.b.timeout )
+  {
+    CLEAR_IN_EP_INTR(1, timeout);
+  }
+  if (diepint.b.intktxfemp)
+  {
+    CLEAR_IN_EP_INTR(1, intktxfemp);
+  }
+  if (diepint.b.inepnakeff)
+  {
+    CLEAR_IN_EP_INTR(1, inepnakeff);
+  }
+  if (diepint.b.emptyintr)
+  {
+    DCD_WriteEmptyTxFifo(pdev , 1);
+    CLEAR_IN_EP_INTR(1, emptyintr);
+  }
+  return 1;
+}
+#endif
+
+/**
+* @brief  STM32_USBF_OTG_ISR_Handler
+*         handles all USB Interrupts
+* @param  pdev: device instance
+* @retval status
+*/
+uint32_t USBD_OTG_ISR_Handler (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintr_status;
+  uint32_t retval = 0;
+  
+  if (USB_OTG_IsDeviceMode(pdev)) /* ensure that we are in device mode */
+  {
+    gintr_status.d32 = USB_OTG_ReadCoreItr(pdev);
+    if (!gintr_status.d32) /* avoid spurious interrupt */
+    {
+      return 0;
+    }
+    
+    if (gintr_status.b.outepintr)
+    {
+      retval |= DCD_HandleOutEP_ISR(pdev);
+    }    
+    
+    if (gintr_status.b.inepint)
+    {
+      retval |= DCD_HandleInEP_ISR(pdev);
+    }
+    
+    if (gintr_status.b.modemismatch)
+    {
+      USB_OTG_GINTSTS_TypeDef  gintsts;
+      
+      /* Clear interrupt */
+      gintsts.d32 = 0;
+      gintsts.b.modemismatch = 1;
+      USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+    }
+    
+    if (gintr_status.b.wkupintr)
+    {
+      retval |= DCD_HandleResume_ISR(pdev);
+    }
+    
+    if (gintr_status.b.usbsuspend)
+    {
+      retval |= DCD_HandleUSBSuspend_ISR(pdev);
+    }
+    if (gintr_status.b.sofintr)
+    {
+      retval |= DCD_HandleSof_ISR(pdev);
+      
+    }
+    
+    if (gintr_status.b.rxstsqlvl)
+    {
+      retval |= DCD_HandleRxStatusQueueLevel_ISR(pdev);
+      
+    }
+    
+    if (gintr_status.b.usbreset)
+    {
+      retval |= DCD_HandleUsbReset_ISR(pdev);
+      
+    }
+    if (gintr_status.b.enumdone)
+    {
+      retval |= DCD_HandleEnumDone_ISR(pdev);
+    }
+    
+    if (gintr_status.b.incomplisoin)
+    {
+      retval |= DCD_IsoINIncomplete_ISR(pdev);
+    }
+
+    if (gintr_status.b.incomplisoout)
+    {
+      retval |= DCD_IsoOUTIncomplete_ISR(pdev);
+    }    
+#ifdef VBUS_SENSING_ENABLED
+    if (gintr_status.b.sessreqintr)
+    {
+      retval |= DCD_SessionRequest_ISR(pdev);
+    }
+
+    if (gintr_status.b.otgintr)
+    {
+      retval |= DCD_OTG_ISR(pdev);
+    }   
+#endif    
+  }
+  return retval;
+}
+
+#ifdef VBUS_SENSING_ENABLED
+/**
+* @brief  DCD_SessionRequest_ISR
+*         Indicates that the USB_OTG controller has detected a connection
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_SessionRequest_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintsts;  
+  USBD_DCD_INT_fops->DevConnected (pdev);
+
+  /* Clear interrupt */
+  gintsts.d32 = 0;
+  gintsts.b.sessreqintr = 1;
+  USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GINTSTS, gintsts.d32);   
+  return 1;
+}
+
+/**
+* @brief  DCD_OTG_ISR
+*         Indicates that the USB_OTG controller has detected an OTG event:
+*                 used to detect the end of session i.e. disconnection
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_OTG_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+
+  USB_OTG_GOTGINT_TypeDef  gotgint;
+
+  gotgint.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GOTGINT);
+  
+  if (gotgint.b.sesenddet)
+  {
+    USBD_DCD_INT_fops->DevDisconnected (pdev);
+  }
+  /* Clear OTG interrupt */
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GOTGINT, gotgint.d32); 
+  return 1;
+}
+#endif
+/**
+* @brief  DCD_HandleResume_ISR
+*         Indicates that the USB_OTG controller has detected a resume or
+*                 remote Wake-up sequence
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleResume_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  USB_OTG_DCTL_TypeDef     devctl;
+  USB_OTG_PCGCCTL_TypeDef  power;
+  
+  if(pdev->cfg.low_power)
+  {
+    /* un-gate USB Core clock */
+    power.d32 = USB_OTG_READ_REG32(&pdev->regs.PCGCCTL);
+    power.b.gatehclk = 0;
+    power.b.stoppclk = 0;
+    USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);
+  }
+  
+  /* Clear the Remote Wake-up Signaling */
+  devctl.d32 = 0;
+  devctl.b.rmtwkupsig = 1;
+  USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, devctl.d32, 0);
+  
+  /* Inform upper layer by the Resume Event */
+  USBD_DCD_INT_fops->Resume (pdev);
+  
+  /* Clear interrupt */
+  gintsts.d32 = 0;
+  gintsts.b.wkupintr = 1;
+  USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  return 1;
+}
+
+/**
+* @brief  USB_OTG_HandleUSBSuspend_ISR
+*         Indicates that SUSPEND state has been detected on the USB
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleUSBSuspend_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  USB_OTG_PCGCCTL_TypeDef  power;
+  USB_OTG_DSTS_TypeDef     dsts;
+  __IO uint8_t prev_status = 0;
+  
+  prev_status = pdev->dev.device_status;
+  USBD_DCD_INT_fops->Suspend (pdev);      
+  
+  dsts.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DSTS);
+    
+  /* Clear interrupt */
+  gintsts.d32 = 0;
+  gintsts.b.usbsuspend = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  
+  if((pdev->cfg.low_power) && (dsts.b.suspsts == 1)  && 
+    (pdev->dev.connection_status == 1) && 
+    (prev_status  == USB_OTG_CONFIGURED))
+  {
+	/*  switch-off the clocks */
+    power.d32 = 0;
+    power.b.stoppclk = 1;
+    USB_OTG_MODIFY_REG32(pdev->regs.PCGCCTL, 0, power.d32);  
+    
+    power.b.gatehclk = 1;
+    USB_OTG_MODIFY_REG32(pdev->regs.PCGCCTL, 0, power.d32);
+    
+    /* Request to enter Sleep mode after exit from current ISR */
+    SCB->SCR |= (SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk);
+  }
+  return 1;
+}
+
+/**
+* @brief  DCD_HandleInEP_ISR
+*         Indicates that an IN EP has a pending Interrupt
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleInEP_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_DIEPINTn_TypeDef  diepint;
+  
+  uint32_t ep_intr;
+  uint32_t epnum = 0;
+  uint32_t fifoemptymsk;
+  diepint.d32 = 0;
+  ep_intr = USB_OTG_ReadDevAllInEPItr(pdev);
+  
+  while ( ep_intr )
+  {
+    if (ep_intr&0x1) /* In ITR */
+    {
+      diepint.d32 = DCD_ReadDevInEP(pdev , epnum); /* Get In ITR status */
+      if ( diepint.b.xfercompl )
+      {
+        fifoemptymsk = 0x1 << epnum;
+        USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DIEPEMPMSK, fifoemptymsk, 0);
+        CLEAR_IN_EP_INTR(epnum, xfercompl);
+        /* TX COMPLETE */
+        USBD_DCD_INT_fops->DataInStage(pdev , epnum);
+        
+        if (pdev->cfg.dma_enable == 1)
+        {
+          if((epnum == 0) && (pdev->dev.device_state == USB_OTG_EP0_STATUS_IN))
+          {
+            /* prepare to rx more setup packets */
+            USB_OTG_EP0_OutStart(pdev);
+          }
+        }           
+      }
+      if ( diepint.b.timeout )
+      {
+        CLEAR_IN_EP_INTR(epnum, timeout);
+      }
+      if (diepint.b.intktxfemp)
+      {
+        CLEAR_IN_EP_INTR(epnum, intktxfemp);
+      }
+      if (diepint.b.inepnakeff)
+      {
+        CLEAR_IN_EP_INTR(epnum, inepnakeff);
+      }
+      if ( diepint.b.epdisabled )
+      {
+        CLEAR_IN_EP_INTR(epnum, epdisabled);
+      }       
+      if (diepint.b.emptyintr)
+      {
+        
+        DCD_WriteEmptyTxFifo(pdev , epnum);
+        
+        CLEAR_IN_EP_INTR(epnum, emptyintr);
+      }
+    }
+    epnum++;
+    ep_intr >>= 1;
+  }
+  
+  return 1;
+}
+
+/**
+* @brief  DCD_HandleOutEP_ISR
+*         Indicates that an OUT EP has a pending Interrupt
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleOutEP_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint32_t ep_intr;
+  USB_OTG_DOEPINTn_TypeDef  doepint;
+  USB_OTG_DEPXFRSIZ_TypeDef  deptsiz;
+  uint32_t epnum = 0;
+  
+  doepint.d32 = 0;
+  
+  /* Read in the device interrupt bits */
+  ep_intr = USB_OTG_ReadDevAllOutEp_itr(pdev);
+  
+  while ( ep_intr )
+  {
+    if (ep_intr&0x1)
+    {
+      
+      doepint.d32 = USB_OTG_ReadDevOutEP_itr(pdev, epnum);
+      
+      /* Transfer complete */
+      if ( doepint.b.xfercompl )
+      {
+        /* Clear the bit in DOEPINTn for this interrupt */
+        CLEAR_OUT_EP_INTR(epnum, xfercompl);
+        if (pdev->cfg.dma_enable == 1)
+        {
+          deptsiz.d32 = USB_OTG_READ_REG32(&(pdev->regs.OUTEP_REGS[epnum]->DOEPTSIZ));
+          /*ToDo : handle more than one single MPS size packet */
+          pdev->dev.out_ep[epnum].xfer_count = pdev->dev.out_ep[epnum].maxpacket - \
+            deptsiz.b.xfersize;
+        }
+        /* Inform upper layer: data ready */
+        /* RX COMPLETE */
+        USBD_DCD_INT_fops->DataOutStage(pdev , epnum);
+        
+        if (pdev->cfg.dma_enable == 1)
+        {
+          if((epnum == 0) && (pdev->dev.device_state == USB_OTG_EP0_STATUS_OUT))
+          {
+            /* prepare to rx more setup packets */
+            USB_OTG_EP0_OutStart(pdev);
+          }
+        }        
+      }
+      /* Endpoint disable  */
+      if ( doepint.b.epdisabled )
+      {
+        /* Clear the bit in DOEPINTn for this interrupt */
+        CLEAR_OUT_EP_INTR(epnum, epdisabled);
+      }
+      /* Setup Phase Done (control EPs) */
+      if ( doepint.b.setup )
+      {
+        
+        /* inform the upper layer that a setup packet is available */
+        /* SETUP COMPLETE */
+        USBD_DCD_INT_fops->SetupStage(pdev);
+        CLEAR_OUT_EP_INTR(epnum, setup);
+      }
+    }
+    epnum++;
+    ep_intr >>= 1;
+  }
+  return 1;
+}
+
+/**
+* @brief  DCD_HandleSof_ISR
+*         Handles the SOF Interrupts
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleSof_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  GINTSTS;
+  
+  
+  USBD_DCD_INT_fops->SOF(pdev);
+  
+  /* Clear interrupt */
+  GINTSTS.d32 = 0;
+  GINTSTS.b.sofintr = 1;
+  USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GINTSTS, GINTSTS.d32);
+  
+  return 1;
+}
+
+/**
+* @brief  DCD_HandleRxStatusQueueLevel_ISR
+*         Handles the Rx Status Queue Level Interrupt
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleRxStatusQueueLevel_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTMSK_TypeDef  int_mask;
+  USB_OTG_DRXSTS_TypeDef   status;
+  USB_OTG_EP *ep;
+  
+  /* Disable the Rx Status Queue Level interrupt */
+  int_mask.d32 = 0;
+  int_mask.b.rxstsqlvl = 1;
+  USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, int_mask.d32, 0);
+  
+  /* Get the Status from the top of the FIFO */
+  status.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GRXSTSP );
+  
+  ep = &pdev->dev.out_ep[status.b.epnum];
+  
+  switch (status.b.pktsts)
+  {
+  case STS_GOUT_NAK:
+    break;
+  case STS_DATA_UPDT:
+    if (status.b.bcnt)
+    {
+      USB_OTG_ReadPacket(pdev,ep->xfer_buff, status.b.bcnt);
+      ep->xfer_buff += status.b.bcnt;
+      ep->xfer_count += status.b.bcnt;
+    }
+    break;
+  case STS_XFER_COMP:
+    break;
+  case STS_SETUP_COMP:
+    break;
+  case STS_SETUP_UPDT:
+    /* Copy the setup packet received in FIFO into the setup buffer in RAM */
+    USB_OTG_ReadPacket(pdev , pdev->dev.setup_packet, 8);
+    ep->xfer_count += status.b.bcnt;
+    break;
+  default:
+    break;
+  }
+  
+  /* Enable the Rx Status Queue Level interrupt */
+  USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, 0, int_mask.d32);
+  
+  return 1;
+}
+
+/**
+* @brief  DCD_WriteEmptyTxFifo
+*         check FIFO for the next packet to be loaded
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_WriteEmptyTxFifo(USB_OTG_CORE_HANDLE *pdev, uint32_t epnum)
+{
+  USB_OTG_DTXFSTSn_TypeDef  txstatus;
+  USB_OTG_EP *ep;
+  uint32_t len = 0;
+  uint32_t len32b;
+  txstatus.d32 = 0;
+  
+  ep = &pdev->dev.in_ep[epnum];    
+  
+  len = ep->xfer_len - ep->xfer_count;
+  
+  if (len > ep->maxpacket)
+  {
+    len = ep->maxpacket;
+  }
+  
+  len32b = (len + 3) / 4;
+  txstatus.d32 = USB_OTG_READ_REG32( &pdev->regs.INEP_REGS[epnum]->DTXFSTS);
+  
+  
+  
+  while  (txstatus.b.txfspcavail > len32b &&
+          ep->xfer_count < ep->xfer_len &&
+            ep->xfer_len != 0)
+  {
+    /* Write the FIFO */
+    len = ep->xfer_len - ep->xfer_count;
+    
+    if (len > ep->maxpacket)
+    {
+      len = ep->maxpacket;
+    }
+    len32b = (len + 3) / 4;
+    
+    USB_OTG_WritePacket (pdev , ep->xfer_buff, epnum, len);
+    
+    ep->xfer_buff  += len;
+    ep->xfer_count += len;
+    
+    txstatus.d32 = USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[epnum]->DTXFSTS);
+  }
+  
+  return 1;
+}
+
+/**
+* @brief  DCD_HandleUsbReset_ISR
+*         This interrupt occurs when a USB Reset is detected
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleUsbReset_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_DAINT_TypeDef    daintmsk;
+  USB_OTG_DOEPMSK_TypeDef  doepmsk;
+  USB_OTG_DIEPMSK_TypeDef  diepmsk;
+  USB_OTG_DCFG_TypeDef     dcfg;
+  USB_OTG_DCTL_TypeDef     dctl;
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  uint32_t i;
+  
+  dctl.d32 = 0;
+  daintmsk.d32 = 0;
+  doepmsk.d32 = 0;
+  diepmsk.d32 = 0;
+  dcfg.d32 = 0;
+  gintsts.d32 = 0;
+  
+  /* Clear the Remote Wake-up Signaling */
+  dctl.b.rmtwkupsig = 1;
+  USB_OTG_MODIFY_REG32(&pdev->regs.DREGS->DCTL, dctl.d32, 0 );
+  
+  /* Flush the Tx FIFO */
+  USB_OTG_FlushTxFifo(pdev ,  0 );
+  
+  for (i = 0; i < pdev->cfg.dev_endpoints ; i++)
+  {
+    USB_OTG_WRITE_REG32( &pdev->regs.INEP_REGS[i]->DIEPINT, 0xFF);
+    USB_OTG_WRITE_REG32( &pdev->regs.OUTEP_REGS[i]->DOEPINT, 0xFF);
+  }
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINT, 0xFFFFFFFF );
+  
+  daintmsk.ep.in = 1;
+  daintmsk.ep.out = 1;
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DAINTMSK, daintmsk.d32 );
+  
+  doepmsk.b.setup = 1;
+  doepmsk.b.xfercompl = 1;
+  doepmsk.b.epdisabled = 1;
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DOEPMSK, doepmsk.d32 );
+#ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED   
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DOUTEP1MSK, doepmsk.d32 );
+#endif
+  diepmsk.b.xfercompl = 1;
+  diepmsk.b.timeout = 1;
+  diepmsk.b.epdisabled = 1;
+
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DIEPMSK, diepmsk.d32 );
+#ifdef USB_OTG_HS_DEDICATED_EP1_ENABLED  
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DINEP1MSK, diepmsk.d32 );
+#endif
+  /* Reset Device Address */
+  dcfg.d32 = USB_OTG_READ_REG32( &pdev->regs.DREGS->DCFG);
+  dcfg.b.devaddr = 0;
+  USB_OTG_WRITE_REG32( &pdev->regs.DREGS->DCFG, dcfg.d32);
+  
+  
+  /* setup EP0 to receive SETUP packets */
+  USB_OTG_EP0_OutStart(pdev);
+  
+  /* Clear interrupt */
+  gintsts.d32 = 0;
+  gintsts.b.usbreset = 1;
+  USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  
+  /*Reset internal state machine */
+  USBD_DCD_INT_fops->Reset(pdev);
+  return 1;
+}
+
+/**
+* @brief  DCD_HandleEnumDone_ISR
+*         Read the device status register and set the device speed
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_HandleEnumDone_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  USB_OTG_GUSBCFG_TypeDef  gusbcfg;
+  
+  USB_OTG_EP0Activate(pdev);
+  
+  /* Set USB turn-around time based on device speed and PHY interface. */
+  gusbcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GUSBCFG);
+  
+  /* Full or High speed */
+  if ( USB_OTG_GetDeviceSpeed(pdev) == USB_SPEED_HIGH)
+  {
+    pdev->cfg.speed            = USB_OTG_SPEED_HIGH;
+    pdev->cfg.mps              = USB_OTG_HS_MAX_PACKET_SIZE ;    
+    gusbcfg.b.usbtrdtim = 9;
+  }
+  else
+  {
+    pdev->cfg.speed            = USB_OTG_SPEED_FULL;
+    pdev->cfg.mps              = USB_OTG_FS_MAX_PACKET_SIZE ;  
+    gusbcfg.b.usbtrdtim = 5;
+  }
+  
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GUSBCFG, gusbcfg.d32);
+  
+  /* Clear interrupt */
+  gintsts.d32 = 0;
+  gintsts.b.enumdone = 1;
+  USB_OTG_WRITE_REG32( &pdev->regs.GREGS->GINTSTS, gintsts.d32 );
+  return 1;
+}
+
+
+/**
+* @brief  DCD_IsoINIncomplete_ISR
+*         handle the ISO IN incomplete interrupt
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_IsoINIncomplete_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef gintsts;  
+  
+  gintsts.d32 = 0;
+
+  USBD_DCD_INT_fops->IsoINIncomplete (pdev); 
+  
+  /* Clear interrupt */
+  gintsts.b.incomplisoin = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  
+  return 1;
+}
+
+/**
+* @brief  DCD_IsoOUTIncomplete_ISR
+*         handle the ISO OUT incomplete interrupt
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_IsoOUTIncomplete_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef gintsts;  
+  
+  gintsts.d32 = 0;
+
+  USBD_DCD_INT_fops->IsoOUTIncomplete (pdev); 
+  
+  /* Clear interrupt */
+  gintsts.b.incomplisoout = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  return 1;
+}
+/**
+* @brief  DCD_ReadDevInEP
+*         Reads ep flags
+* @param  pdev: device instance
+* @retval status
+*/
+static uint32_t DCD_ReadDevInEP (USB_OTG_CORE_HANDLE *pdev, uint8_t epnum)
+{
+  uint32_t v, msk, emp;
+  msk = USB_OTG_READ_REG32(&pdev->regs.DREGS->DIEPMSK);
+  emp = USB_OTG_READ_REG32(&pdev->regs.DREGS->DIEPEMPMSK);
+  msk |= ((emp >> epnum) & 0x1) << 7;
+  v = USB_OTG_READ_REG32(&pdev->regs.INEP_REGS[epnum]->DIEPINT) & msk;
+  return v;
+}
+
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/src/usb_hcd.c
@@ -1,0 +1,262 @@
+/**
+  ******************************************************************************
+  * @file    usb_hcd.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Host Interface Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_core.h"
+#include "usb_hcd.h"
+#include "usb_conf.h"
+#include "usb_bsp.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_HCD 
+  * @brief This file is the interface between EFSL ans Host mass-storage class
+  * @{
+  */
+
+
+/** @defgroup USB_HCD_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+ 
+
+/** @defgroup USB_HCD_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USB_HCD_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_HCD_Private_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_HCD_Private_FunctionPrototypes
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_HCD_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @brief  HCD_Init 
+  *         Initialize the HOST portion of the driver.
+  * @param  pdev: Selected device
+  * @param  base_address: OTG base address
+  * @retval Status
+  */
+uint32_t HCD_Init(USB_OTG_CORE_HANDLE *pdev , 
+                  USB_OTG_CORE_ID_TypeDef coreID)
+{
+  uint8_t i = 0;
+  pdev->host.ConnSts = 0;
+  
+  for (i= 0; i< USB_OTG_MAX_TX_FIFOS; i++)
+  {
+  pdev->host.ErrCnt[i]  = 0;
+  pdev->host.XferCnt[i]   = 0;
+  pdev->host.HC_Status[i]   = HC_IDLE;
+  }
+  pdev->host.hc[0].max_packet  = 8; 
+
+  USB_OTG_SelectCore(pdev, coreID);
+#ifndef DUAL_ROLE_MODE_ENABLED
+  USB_OTG_DisableGlobalInt(pdev);
+  USB_OTG_CoreInit(pdev);
+
+  /* Force Host Mode*/
+  USB_OTG_SetCurrentMode(pdev , HOST_MODE);
+  USB_OTG_CoreInitHost(pdev);
+  USB_OTG_EnableGlobalInt(pdev);
+#endif
+   
+  return 0;
+}
+
+
+/**
+  * @brief  HCD_GetCurrentSpeed
+  *         Get Current device Speed.
+  * @param  pdev : Selected device
+  * @retval Status
+  */
+
+uint32_t HCD_GetCurrentSpeed (USB_OTG_CORE_HANDLE *pdev)
+{    
+    USB_OTG_HPRT0_TypeDef  HPRT0;
+    HPRT0.d32 = USB_OTG_READ_REG32(pdev->regs.HPRT0);
+    
+    return HPRT0.b.prtspd;
+}
+
+/**
+  * @brief  HCD_ResetPort
+  *         Issues the reset command to device
+  * @param  pdev : Selected device
+  * @retval Status
+  */
+uint32_t HCD_ResetPort(USB_OTG_CORE_HANDLE *pdev)
+{
+  /*
+  Before starting to drive a USB reset, the application waits for the OTG 
+  interrupt triggered by the debounce done bit (DBCDNE bit in OTG_FS_GOTGINT), 
+  which indicates that the bus is stable again after the electrical debounce 
+  caused by the attachment of a pull-up resistor on DP (FS) or DM (LS).
+  */
+  
+  USB_OTG_ResetPort(pdev); 
+  return 0;
+}
+
+/**
+  * @brief  HCD_IsDeviceConnected
+  *         Check if the device is connected.
+  * @param  pdev : Selected device
+  * @retval Device connection status. 1 -> connected and 0 -> disconnected
+  * 
+  */
+uint32_t HCD_IsDeviceConnected(USB_OTG_CORE_HANDLE *pdev)
+{
+  return (pdev->host.ConnSts);
+}
+
+/**
+  * @brief  HCD_GetCurrentFrame 
+  *         This function returns the frame number for sof packet
+  * @param  pdev : Selected device
+  * @retval Frame number
+  * 
+  */
+uint32_t HCD_GetCurrentFrame (USB_OTG_CORE_HANDLE *pdev) 
+{
+ return (USB_OTG_READ_REG32(&pdev->regs.HREGS->HFNUM) & 0xFFFF) ;
+}
+
+/**
+  * @brief  HCD_GetURB_State 
+  *         This function returns the last URBstate
+  * @param  pdev: Selected device
+  * @retval URB_STATE
+  * 
+  */
+URB_STATE HCD_GetURB_State (USB_OTG_CORE_HANDLE *pdev , uint8_t ch_num) 
+{
+  return pdev->host.URB_State[ch_num] ;
+}
+
+/**
+  * @brief  HCD_GetXferCnt 
+  *         This function returns the last URBstate
+  * @param  pdev: Selected device
+  * @retval No. of data bytes transferred
+  * 
+  */
+uint32_t HCD_GetXferCnt (USB_OTG_CORE_HANDLE *pdev, uint8_t ch_num) 
+{
+  return pdev->host.XferCnt[ch_num] ;
+}
+
+
+
+/**
+  * @brief  HCD_GetHCState 
+  *         This function returns the HC Status 
+  * @param  pdev: Selected device
+  * @retval HC_STATUS
+  * 
+  */
+HC_STATUS HCD_GetHCState (USB_OTG_CORE_HANDLE *pdev ,  uint8_t ch_num) 
+{
+  return pdev->host.HC_Status[ch_num] ;
+}
+
+/**
+  * @brief  HCD_HC_Init 
+  *         This function prepare a HC and start a transfer
+  * @param  pdev: Selected device
+  * @param  hc_num: Channel number 
+  * @retval status 
+  */
+uint32_t HCD_HC_Init (USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num) 
+{
+  return USB_OTG_HC_Init(pdev, hc_num);  
+}
+
+/**
+  * @brief  HCD_SubmitRequest 
+  *         This function prepare a HC and start a transfer
+  * @param  pdev: Selected device
+  * @param  hc_num: Channel number 
+  * @retval status
+  */
+uint32_t HCD_SubmitRequest (USB_OTG_CORE_HANDLE *pdev , uint8_t hc_num) 
+{
+  
+  pdev->host.URB_State[hc_num] =   URB_IDLE;  
+  pdev->host.hc[hc_num].xfer_count = 0 ;
+  return USB_OTG_HC_StartXfer(pdev, hc_num);
+}
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/src/usb_hcd_int.c
@@ -1,0 +1,858 @@
+/**
+  ******************************************************************************
+  * @file    usb_hcd_int.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   Host driver interrupt subroutines
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_core.h"
+#include "usb_defines.h"
+#include "usb_hcd_int.h"
+
+#if defined   (__CC_ARM) /*!< ARM Compiler */
+#pragma O0
+#elif defined (__GNUC__) /*!< GNU Compiler */
+#pragma GCC optimize ("O0")
+#elif defined  (__TASKING__) /*!< TASKING Compiler */ 
+#pragma optimize=0                          
+
+#endif /* __CC_ARM */
+
+/** @addtogroup USB_OTG_DRIVER
+* @{
+*/
+
+/** @defgroup USB_HCD_INT 
+* @brief This file contains the interrupt subroutines for the Host mode.
+* @{
+*/
+
+
+/** @defgroup USB_HCD_INT_Private_Defines
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_HCD_INT_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+
+/** @defgroup USB_HCD_INT_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_HCD_INT_Private_Variables
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_HCD_INT_Private_FunctionPrototypes
+* @{
+*/ 
+
+static uint32_t USB_OTG_USBH_handle_sof_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_USBH_handle_port_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_USBH_handle_hc_ISR (USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_USBH_handle_hc_n_In_ISR (USB_OTG_CORE_HANDLE *pdev ,
+                                                 uint32_t num);
+static uint32_t USB_OTG_USBH_handle_hc_n_Out_ISR (USB_OTG_CORE_HANDLE *pdev , 
+                                                  uint32_t num);
+static uint32_t USB_OTG_USBH_handle_rx_qlvl_ISR (USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_USBH_handle_nptxfempty_ISR (USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_USBH_handle_ptxfempty_ISR (USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_USBH_handle_Disconnect_ISR (USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_USBH_handle_IncompletePeriodicXfer_ISR (USB_OTG_CORE_HANDLE *pdev);
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USB_HCD_INT_Private_Functions
+* @{
+*/ 
+
+/**
+* @brief  HOST_Handle_ISR 
+*         This function handles all USB Host Interrupts
+* @param  pdev: Selected device
+* @retval status 
+*/
+
+uint32_t USBH_OTG_ISR_Handler (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  uint32_t retval = 0;
+  
+  gintsts.d32 = 0;
+  
+  /* Check if HOST Mode */
+  if (USB_OTG_IsHostMode(pdev))
+  {
+    gintsts.d32 = USB_OTG_ReadCoreItr(pdev);
+    if (!gintsts.d32)
+    {
+      return 0;
+    }
+    
+    if (gintsts.b.sofintr)
+    {
+      retval |= USB_OTG_USBH_handle_sof_ISR (pdev);
+    }
+    
+    if (gintsts.b.rxstsqlvl)
+    {
+      retval |= USB_OTG_USBH_handle_rx_qlvl_ISR (pdev);
+    }
+    
+    if (gintsts.b.nptxfempty)
+    {
+      retval |= USB_OTG_USBH_handle_nptxfempty_ISR (pdev);
+    }
+    
+    if (gintsts.b.ptxfempty)
+    {
+      retval |= USB_OTG_USBH_handle_ptxfempty_ISR (pdev);
+    }    
+    
+    if (gintsts.b.hcintr)
+    {
+      retval |= USB_OTG_USBH_handle_hc_ISR (pdev);
+    }
+    
+    if (gintsts.b.portintr)
+    {
+      retval |= USB_OTG_USBH_handle_port_ISR (pdev);
+    }
+    
+    if (gintsts.b.disconnect)
+    {
+      retval |= USB_OTG_USBH_handle_Disconnect_ISR (pdev);  
+      
+    }
+    
+    if (gintsts.b.incomplisoout)
+    {
+      retval |= USB_OTG_USBH_handle_IncompletePeriodicXfer_ISR (pdev);
+    }
+    
+    
+  }
+  return retval;
+}
+
+/**
+* @brief  USB_OTG_USBH_handle_hc_ISR 
+*         This function indicates that one or more host channels has a pending
+* @param  pdev: Selected device
+* @retval status 
+*/
+static uint32_t USB_OTG_USBH_handle_hc_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_HAINT_TypeDef        haint;
+  USB_OTG_HCCHAR_TypeDef       hcchar;
+  uint32_t i = 0;
+  uint32_t retval = 0;
+  
+  /* Clear appropriate bits in HCINTn to clear the interrupt bit in
+  * GINTSTS */
+  
+  haint.d32 = USB_OTG_ReadHostAllChannels_intr(pdev);
+  
+  for (i = 0; i < pdev->cfg.host_channels ; i++)
+  {
+    if (haint.b.chint & (1 << i))
+    {
+      hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[i]->HCCHAR);
+      
+      if (hcchar.b.epdir)
+      {
+        retval |= USB_OTG_USBH_handle_hc_n_In_ISR (pdev, i);
+      }
+      else
+      {
+        retval |=  USB_OTG_USBH_handle_hc_n_Out_ISR (pdev, i);
+      }
+    }
+  }
+  
+  return retval;
+}
+
+/**
+* @brief  USB_OTG_otg_hcd_handle_sof_intr 
+*         Handles the start-of-frame interrupt in host mode.
+* @param  pdev: Selected device
+* @retval status 
+*/
+static uint32_t USB_OTG_USBH_handle_sof_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef      gintsts;
+  gintsts.d32 = 0;
+  
+  USBH_HCD_INT_fops->SOF(pdev);
+  
+  /* Clear interrupt */
+  gintsts.b.sofintr = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  
+  return 1;
+}
+
+/**
+* @brief  USB_OTG_USBH_handle_Disconnect_ISR 
+*         Handles disconnect event.
+* @param  pdev: Selected device
+* @retval status 
+*/
+static uint32_t USB_OTG_USBH_handle_Disconnect_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef      gintsts;
+  
+  gintsts.d32 = 0;
+  
+  USBH_HCD_INT_fops->DevDisconnected(pdev);
+  
+  /* Clear interrupt */
+  gintsts.b.disconnect = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  
+  return 1;
+}
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma optimize = none
+#endif /* __CC_ARM */
+/**
+* @brief  USB_OTG_USBH_handle_nptxfempty_ISR 
+*         Handles non periodic tx fifo empty.
+* @param  pdev: Selected device
+* @retval status 
+*/
+static uint32_t USB_OTG_USBH_handle_nptxfempty_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTMSK_TypeDef      intmsk;
+  USB_OTG_HNPTXSTS_TypeDef     hnptxsts; 
+  uint16_t                     len_words , len; 
+  
+  hnptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS);
+  
+  len_words = (pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_len + 3) / 4;
+  
+  while ((hnptxsts.b.nptxfspcavail > len_words)&&
+         (pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_len != 0))
+  {
+    
+    len = hnptxsts.b.nptxfspcavail * 4;
+    
+    if (len > pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_len)
+    {
+      /* Last packet */
+      len = pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_len;
+      
+      intmsk.d32 = 0;
+      intmsk.b.nptxfempty = 1;
+      USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, intmsk.d32, 0);       
+    }
+    
+    len_words = (pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_len + 3) / 4;
+    
+    USB_OTG_WritePacket (pdev , pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_buff, hnptxsts.b.nptxqtop.chnum, len);
+    
+    pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_buff  += len;
+    pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_len   -= len;
+    pdev->host.hc[hnptxsts.b.nptxqtop.chnum].xfer_count  += len; 
+    
+    hnptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->HNPTXSTS);
+  }  
+  
+  return 1;
+}
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma optimize = none
+#endif /* __CC_ARM */
+/**
+* @brief  USB_OTG_USBH_handle_ptxfempty_ISR 
+*         Handles periodic tx fifo empty
+* @param  pdev: Selected device
+* @retval status 
+*/
+static uint32_t USB_OTG_USBH_handle_ptxfempty_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTMSK_TypeDef      intmsk;
+  USB_OTG_HPTXSTS_TypeDef      hptxsts; 
+  uint16_t                     len_words , len; 
+  
+  hptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HPTXSTS);
+  
+  len_words = (pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_len + 3) / 4;
+  
+  while ((hptxsts.b.ptxfspcavail > len_words)&&
+         (pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_len != 0))    
+  {
+    
+    len = hptxsts.b.ptxfspcavail * 4;
+    
+    if (len > pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_len)
+    {
+      len = pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_len;
+      /* Last packet */
+      intmsk.d32 = 0;
+      intmsk.b.ptxfempty = 1;
+      USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, intmsk.d32, 0); 
+    }
+    
+    len_words = (pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_len + 3) / 4;
+    
+    USB_OTG_WritePacket (pdev , pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_buff, hptxsts.b.ptxqtop.chnum, len);
+    
+    pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_buff  += len;
+    pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_len   -= len;
+    pdev->host.hc[hptxsts.b.ptxqtop.chnum].xfer_count  += len; 
+    
+    hptxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HPTXSTS);
+  }  
+  
+  return 1;
+}
+
+/**
+* @brief  USB_OTG_USBH_handle_port_ISR 
+*         This function determines which interrupt conditions have occurred
+* @param  pdev: Selected device
+* @retval status 
+*/
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma optimize = none
+#endif /* __CC_ARM */
+static uint32_t USB_OTG_USBH_handle_port_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_HPRT0_TypeDef  hprt0;
+  USB_OTG_HPRT0_TypeDef  hprt0_dup;
+  USB_OTG_HCFG_TypeDef   hcfg;    
+  uint32_t do_reset = 0;
+  uint32_t retval = 0;
+  
+  hcfg.d32 = 0;
+  hprt0.d32 = 0;
+  hprt0_dup.d32 = 0;
+  
+  hprt0.d32 = USB_OTG_READ_REG32(pdev->regs.HPRT0);
+  hprt0_dup.d32 = USB_OTG_READ_REG32(pdev->regs.HPRT0);
+  
+  /* Clear the interrupt bits in GINTSTS */
+  
+  hprt0_dup.b.prtena = 0;
+  hprt0_dup.b.prtconndet = 0;
+  hprt0_dup.b.prtenchng = 0;
+  hprt0_dup.b.prtovrcurrchng = 0;
+  
+  /* Port Connect Detected */
+  if (hprt0.b.prtconndet)
+  {
+
+    hprt0_dup.b.prtconndet = 1;
+    USBH_HCD_INT_fops->DevConnected(pdev);
+    retval |= 1;
+  }
+  
+  /* Port Enable Changed */
+  if (hprt0.b.prtenchng)
+  {
+    hprt0_dup.b.prtenchng = 1;
+    
+    if (hprt0.b.prtena == 1)
+    {
+      
+      USBH_HCD_INT_fops->DevConnected(pdev);
+      
+      if ((hprt0.b.prtspd == HPRT0_PRTSPD_LOW_SPEED) ||
+          (hprt0.b.prtspd == HPRT0_PRTSPD_FULL_SPEED))
+      {
+        
+        hcfg.d32 = USB_OTG_READ_REG32(&pdev->regs.HREGS->HCFG);
+        
+        if (hprt0.b.prtspd == HPRT0_PRTSPD_LOW_SPEED)
+        {
+          USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HFIR, 6000 );
+          if (hcfg.b.fslspclksel != HCFG_6_MHZ)
+          {
+            if(pdev->cfg.phy_itface  == USB_OTG_EMBEDDED_PHY)
+            {
+              USB_OTG_InitFSLSPClkSel(pdev ,HCFG_6_MHZ );
+            }
+            do_reset = 1;
+          }
+        }
+        else
+        {
+          
+          USB_OTG_WRITE_REG32(&pdev->regs.HREGS->HFIR, 48000 );            
+          if (hcfg.b.fslspclksel != HCFG_48_MHZ)
+          {
+            USB_OTG_InitFSLSPClkSel(pdev ,HCFG_48_MHZ );
+            do_reset = 1;
+          }
+        }
+      }
+      else
+      {
+        do_reset = 1;
+      }
+    }
+  }
+  /* Overcurrent Change Interrupt */
+  if (hprt0.b.prtovrcurrchng)
+  {
+    hprt0_dup.b.prtovrcurrchng = 1;
+    retval |= 1;
+  }
+  if (do_reset)
+  {
+    USB_OTG_ResetPort(pdev);
+  }
+  /* Clear Port Interrupts */
+  USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0_dup.d32);
+  
+  return retval;
+}
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma optimize = none
+#endif /* __CC_ARM */
+/**
+* @brief  USB_OTG_USBH_handle_hc_n_Out_ISR 
+*         Handles interrupt for a specific Host Channel
+* @param  pdev: Selected device
+* @param  hc_num: Channel number
+* @retval status 
+*/
+uint32_t USB_OTG_USBH_handle_hc_n_Out_ISR (USB_OTG_CORE_HANDLE *pdev , uint32_t num)
+{
+  
+  USB_OTG_HCINTn_TypeDef     hcint;
+  USB_OTG_HCINTMSK_TypeDef  hcintmsk;
+  USB_OTG_HC_REGS *hcreg;
+  USB_OTG_HCCHAR_TypeDef     hcchar; 
+  
+  hcreg = pdev->regs.HC_REGS[num];
+  hcint.d32 = USB_OTG_READ_REG32(&hcreg->HCINT);
+  hcintmsk.d32 = USB_OTG_READ_REG32(&hcreg->HCINTMSK);
+  hcint.d32 = hcint.d32 & hcintmsk.d32;
+  
+  hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[num]->HCCHAR);
+  
+  if (hcint.b.ahberr)
+  {
+    CLEAR_HC_INT(hcreg ,ahberr);
+    UNMASK_HOST_INT_CHH (num);
+  } 
+  else if (hcint.b.ack)
+  {
+    CLEAR_HC_INT(hcreg , ack);
+  }
+  else if (hcint.b.frmovrun)
+  {
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg ,frmovrun);
+  }
+  else if (hcint.b.xfercompl)
+  {
+    pdev->host.ErrCnt[num] = 0;
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg , xfercompl);
+    pdev->host.HC_Status[num] = HC_XFRC;            
+  }
+  
+  else if (hcint.b.stall)
+  {
+    CLEAR_HC_INT(hcreg , stall);
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    pdev->host.HC_Status[num] = HC_STALL;      
+  }
+  
+  else if (hcint.b.nak)
+  {
+    pdev->host.ErrCnt[num] = 0;
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg , nak);
+    pdev->host.HC_Status[num] = HC_NAK;      
+  }
+  
+  else if (hcint.b.xacterr)
+  {
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    pdev->host.ErrCnt[num] ++;
+    pdev->host.HC_Status[num] = HC_XACTERR;
+    CLEAR_HC_INT(hcreg , xacterr);
+  }
+  else if (hcint.b.nyet)
+  {
+    pdev->host.ErrCnt[num] = 0;
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg , nyet);
+    pdev->host.HC_Status[num] = HC_NYET;    
+  }
+  else if (hcint.b.datatglerr)
+  {
+    
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg , nak);   
+    pdev->host.HC_Status[num] = HC_DATATGLERR;
+    
+    CLEAR_HC_INT(hcreg , datatglerr);
+  }  
+  else if (hcint.b.chhltd)
+  {
+    MASK_HOST_INT_CHH (num);
+    
+    if(pdev->host.HC_Status[num] == HC_XFRC)
+    {
+      pdev->host.URB_State[num] = URB_DONE;  
+      
+      if (hcchar.b.eptype == EP_TYPE_BULK)
+      {
+        pdev->host.hc[num].toggle_out ^= 1; 
+      }
+    }
+    else if(pdev->host.HC_Status[num] == HC_NAK)
+    {
+      pdev->host.URB_State[num] = URB_NOTREADY;      
+    }    
+    else if(pdev->host.HC_Status[num] == HC_NYET)
+    {
+      if(pdev->host.hc[num].do_ping == 1)
+      {
+        USB_OTG_HC_DoPing(pdev, num);
+      }
+      pdev->host.URB_State[num] = URB_NOTREADY;      
+    }      
+    else if(pdev->host.HC_Status[num] == HC_STALL)
+    {
+      pdev->host.URB_State[num] = URB_STALL;      
+    }  
+    else if(pdev->host.HC_Status[num] == HC_XACTERR)
+    {
+      if (pdev->host.ErrCnt[num] == 3)
+      {
+        pdev->host.URB_State[num] = URB_ERROR;  
+        pdev->host.ErrCnt[num] = 0;
+      }
+    }
+    CLEAR_HC_INT(hcreg , chhltd);    
+  }
+  
+  
+  return 1;
+}
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma optimize = none
+#endif /* __CC_ARM */
+/**
+* @brief  USB_OTG_USBH_handle_hc_n_In_ISR 
+*         Handles interrupt for a specific Host Channel
+* @param  pdev: Selected device
+* @param  hc_num: Channel number
+* @retval status 
+*/
+uint32_t USB_OTG_USBH_handle_hc_n_In_ISR (USB_OTG_CORE_HANDLE *pdev , uint32_t num)
+{
+  USB_OTG_HCINTn_TypeDef     hcint;
+  USB_OTG_HCINTMSK_TypeDef  hcintmsk;
+  USB_OTG_HCCHAR_TypeDef     hcchar; 
+  USB_OTG_HCTSIZn_TypeDef  hctsiz;
+  USB_OTG_HC_REGS *hcreg;
+  
+  
+  hcreg = pdev->regs.HC_REGS[num];
+  hcint.d32 = USB_OTG_READ_REG32(&hcreg->HCINT);
+  hcintmsk.d32 = USB_OTG_READ_REG32(&hcreg->HCINTMSK);
+  hcint.d32 = hcint.d32 & hcintmsk.d32;
+  hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[num]->HCCHAR);
+  hcintmsk.d32 = 0;
+  
+  
+  if (hcint.b.ahberr)
+  {
+    CLEAR_HC_INT(hcreg ,ahberr);
+    UNMASK_HOST_INT_CHH (num);
+  }  
+  else if (hcint.b.ack)
+  {
+    CLEAR_HC_INT(hcreg ,ack);
+  }
+  
+  else if (hcint.b.stall)  
+  {
+    UNMASK_HOST_INT_CHH (num);
+    pdev->host.HC_Status[num] = HC_STALL; 
+    CLEAR_HC_INT(hcreg , nak);   /* Clear the NAK Condition */
+    CLEAR_HC_INT(hcreg , stall); /* Clear the STALL Condition */
+    hcint.b.nak = 0;           /* NOTE: When there is a 'stall', reset also nak, 
+                                  else, the pdev->host.HC_Status = HC_STALL
+    will be overwritten by 'nak' in code below */
+    USB_OTG_HC_Halt(pdev, num);    
+  }
+  else if (hcint.b.datatglerr)
+  {
+    
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg , nak);   
+    pdev->host.HC_Status[num] = HC_DATATGLERR; 
+    CLEAR_HC_INT(hcreg , datatglerr);
+  }    
+  
+  if (hcint.b.frmovrun)
+  {
+    UNMASK_HOST_INT_CHH (num);
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg ,frmovrun);
+  }
+  
+  else if (hcint.b.xfercompl)
+  {
+    
+    if (pdev->cfg.dma_enable == 1)
+    {
+      hctsiz.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[num]->HCTSIZ);
+      pdev->host.XferCnt[num] =  pdev->host.hc[num].xfer_len - hctsiz.b.xfersize;
+    }
+    
+    pdev->host.HC_Status[num] = HC_XFRC;     
+    pdev->host.ErrCnt [num]= 0;
+    CLEAR_HC_INT(hcreg , xfercompl);
+    
+    if ((hcchar.b.eptype == EP_TYPE_CTRL)||
+        (hcchar.b.eptype == EP_TYPE_BULK))
+    {
+      UNMASK_HOST_INT_CHH (num);
+      USB_OTG_HC_Halt(pdev, num);
+      CLEAR_HC_INT(hcreg , nak); 
+      pdev->host.hc[num].toggle_in ^= 1;
+      
+    }
+    else if(hcchar.b.eptype == EP_TYPE_INTR)
+    {
+      hcchar.b.oddfrm  = 1;
+      USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[num]->HCCHAR, hcchar.d32); 
+      pdev->host.URB_State[num] = URB_DONE;  
+    }
+    
+  }
+  else if (hcint.b.chhltd)
+  {
+    MASK_HOST_INT_CHH (num);
+    
+    if(pdev->host.HC_Status[num] == HC_XFRC)
+    {
+      pdev->host.URB_State[num] = URB_DONE;      
+    }
+    
+    else if (pdev->host.HC_Status[num] == HC_STALL) 
+    {
+      pdev->host.URB_State[num] = URB_STALL;
+    }   
+    
+    else if((pdev->host.HC_Status[num] == HC_XACTERR) ||
+            (pdev->host.HC_Status[num] == HC_DATATGLERR))
+    {
+      pdev->host.ErrCnt[num] = 0;
+      pdev->host.URB_State[num] = URB_ERROR;  
+      
+    }
+    else if(hcchar.b.eptype == EP_TYPE_INTR)
+    {
+      pdev->host.hc[num].toggle_in ^= 1;
+    }
+    
+    CLEAR_HC_INT(hcreg , chhltd);    
+    
+  }    
+  else if (hcint.b.xacterr)
+  {
+    UNMASK_HOST_INT_CHH (num);
+    pdev->host.ErrCnt[num] ++;
+    pdev->host.HC_Status[num] = HC_XACTERR;
+    USB_OTG_HC_Halt(pdev, num);
+    CLEAR_HC_INT(hcreg , xacterr);    
+    
+  }
+  else if (hcint.b.nak)  
+  {  
+    if(hcchar.b.eptype == EP_TYPE_INTR)
+    {
+      UNMASK_HOST_INT_CHH (num);
+      USB_OTG_HC_Halt(pdev, num);
+    }
+    else if  ((hcchar.b.eptype == EP_TYPE_CTRL)||
+              (hcchar.b.eptype == EP_TYPE_BULK))
+    {
+      /* re-activate the channel  */
+      hcchar.b.chen = 1;
+      hcchar.b.chdis = 0;
+      USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[num]->HCCHAR, hcchar.d32); 
+    }
+    pdev->host.HC_Status[num] = HC_NAK;
+    CLEAR_HC_INT(hcreg , nak);   
+  }
+  
+  
+  return 1;
+  
+}
+
+/**
+* @brief  USB_OTG_USBH_handle_rx_qlvl_ISR 
+*         Handles the Rx Status Queue Level Interrupt
+* @param  pdev: Selected device
+* @retval status 
+*/
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma optimize = none
+#endif /* __CC_ARM */
+static uint32_t USB_OTG_USBH_handle_rx_qlvl_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GRXFSTS_TypeDef       grxsts;
+  USB_OTG_GINTMSK_TypeDef       intmsk;
+  USB_OTG_HCTSIZn_TypeDef       hctsiz; 
+  USB_OTG_HCCHAR_TypeDef        hcchar;
+  __IO uint8_t                  channelnum =0;  
+  uint32_t                      count;    
+  
+  /* Disable the Rx Status Queue Level interrupt */
+  intmsk.d32 = 0;
+  intmsk.b.rxstsqlvl = 1;
+  USB_OTG_MODIFY_REG32( &pdev->regs.GREGS->GINTMSK, intmsk.d32, 0);
+  
+  grxsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GRXSTSP);
+  channelnum = grxsts.b.chnum;  
+  hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[channelnum]->HCCHAR);
+  
+  switch (grxsts.b.pktsts)
+  {
+  case GRXSTS_PKTSTS_IN:
+    /* Read the data into the host buffer. */
+    if ((grxsts.b.bcnt > 0) && (pdev->host.hc[channelnum].xfer_buff != (void  *)0))
+    {  
+      
+      USB_OTG_ReadPacket(pdev, pdev->host.hc[channelnum].xfer_buff, grxsts.b.bcnt);
+      /*manage multiple Xfer */
+      pdev->host.hc[grxsts.b.chnum].xfer_buff += grxsts.b.bcnt;           
+      pdev->host.hc[grxsts.b.chnum].xfer_count  += grxsts.b.bcnt;
+      
+      
+      count = pdev->host.hc[channelnum].xfer_count;
+      pdev->host.XferCnt[channelnum]  = count;
+      
+      hctsiz.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[channelnum]->HCTSIZ);
+      if(hctsiz.b.pktcnt > 0)
+      {
+        /* re-activate the channel when more packets are expected */
+        hcchar.b.chen = 1;
+        hcchar.b.chdis = 0;
+        USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[channelnum]->HCCHAR, hcchar.d32);
+      }
+    }
+    break;
+    
+  case GRXSTS_PKTSTS_IN_XFER_COMP:
+    
+  case GRXSTS_PKTSTS_DATA_TOGGLE_ERR:
+  case GRXSTS_PKTSTS_CH_HALTED:
+  default:
+    break;
+  }
+  
+  /* Enable the Rx Status Queue Level interrupt */
+  intmsk.b.rxstsqlvl = 1;
+  USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GINTMSK, 0, intmsk.d32);
+  return 1;
+}
+
+/**
+* @brief  USB_OTG_USBH_handle_IncompletePeriodicXfer_ISR 
+*         Handles the incomplete Periodic transfer Interrupt
+* @param  pdev: Selected device
+* @retval status 
+*/
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma optimize = none
+#endif /* __CC_ARM */
+static uint32_t USB_OTG_USBH_handle_IncompletePeriodicXfer_ISR (USB_OTG_CORE_HANDLE *pdev)
+{
+  
+  USB_OTG_GINTSTS_TypeDef       gintsts;
+  USB_OTG_HCCHAR_TypeDef        hcchar; 
+  
+  
+  
+  
+  hcchar.d32 = USB_OTG_READ_REG32(&pdev->regs.HC_REGS[0]->HCCHAR);
+  hcchar.b.chen = 1;
+  hcchar.b.chdis = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.HC_REGS[0]->HCCHAR, hcchar.d32);  
+  
+  gintsts.d32 = 0;
+  /* Clear interrupt */
+  gintsts.b.incomplisoout = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  
+  return 1;
+}
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/src/usb_otg.c
@@ -1,0 +1,419 @@
+/**
+  ******************************************************************************
+  * @file    usb_otg.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   OTG Core Layer
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_defines.h"
+#include "usb_regs.h"
+#include "usb_core.h"
+#include "usb_otg.h"
+
+#ifdef USE_OTG_MODE
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_OTG 
+  * @brief This file is the interface between EFSL ans Host mass-storage class
+  * @{
+  */
+
+
+/** @defgroup USB_OTG_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+ 
+
+/** @defgroup USB_OTG_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USB_OTG_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_OTG_Private_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_OTG_Private_FunctionPrototypes
+  * @{
+  */ 
+
+uint32_t USB_OTG_HandleOTG_ISR(USB_OTG_CORE_HANDLE *pdev);
+
+static uint32_t USB_OTG_HandleConnectorIDStatusChange_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_HandleSessionRequest_ISR(USB_OTG_CORE_HANDLE *pdev);
+static uint32_t USB_OTG_Read_itr(USB_OTG_CORE_HANDLE *pdev);
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_OTG_Private_Functions
+  * @{
+  */ 
+
+
+/*                           OTG Interrupt Handler                         */
+
+
+/**
+  * @brief  STM32_USBO_OTG_ISR_Handler
+  *         
+  * @param  None
+  * @retval : None
+  */
+uint32_t STM32_USBO_OTG_ISR_Handler(USB_OTG_CORE_HANDLE *pdev)
+{
+  uint32_t retval = 0;
+  USB_OTG_GINTSTS_TypeDef  gintsts ;
+  gintsts.d32 = 0;
+
+  gintsts.d32 = USB_OTG_Read_itr(pdev);
+  if (gintsts.d32 == 0)
+  {
+    return 0;
+  }
+  if (gintsts.b.otgintr)
+  {
+    retval |= USB_OTG_HandleOTG_ISR(pdev);
+  }
+  if (gintsts.b.conidstschng)
+  {
+    retval |= USB_OTG_HandleConnectorIDStatusChange_ISR(pdev);
+  }
+  if (gintsts.b.sessreqintr)
+  {
+    retval |= USB_OTG_HandleSessionRequest_ISR(pdev);
+  }
+  return retval;
+}
+
+
+/**
+  * @brief  USB_OTG_Read_itr
+  *         returns the Core Interrupt register
+  * @param  None
+  * @retval : status
+  */
+static uint32_t USB_OTG_Read_itr(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  USB_OTG_GINTMSK_TypeDef  gintmsk;
+  USB_OTG_GINTMSK_TypeDef  gintmsk_common;
+  
+  
+  gintsts.d32 = 0;
+  gintmsk.d32 = 0;
+  gintmsk_common.d32 = 0;
+  
+  /* OTG interrupts */
+  gintmsk_common.b.sessreqintr = 1;
+  gintmsk_common.b.conidstschng = 1;
+  gintmsk_common.b.otgintr = 1;
+  
+  gintsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTSTS);
+  gintmsk.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTMSK);
+  return ((gintsts.d32 & gintmsk.d32 ) & gintmsk_common.d32);
+}
+
+
+/**
+  * @brief  USB_OTG_HandleOTG_ISR
+  *         handles the OTG Interrupts
+  * @param  None
+  * @retval : status
+  */
+static uint32_t USB_OTG_HandleOTG_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GOTGINT_TypeDef  gotgint;
+  USB_OTG_GOTGCTL_TypeDef  gotgctl;
+  
+  
+  gotgint.d32 = 0;
+  gotgctl.d32 = 0;
+  
+  gotgint.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GOTGINT);
+  gotgctl.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GOTGCTL);
+  
+  if (gotgint.b.sesenddet)
+  {
+    gotgctl.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GOTGCTL);
+    
+    
+    if (USB_OTG_IsDeviceMode(pdev))
+    {
+
+    }
+    else if (USB_OTG_IsHostMode(pdev))
+    {
+
+    }
+  }
+
+  /* ----> SRP SUCCESS or FAILURE INTERRUPT <---- */
+  if (gotgint.b.sesreqsucstschng)
+  {
+    gotgctl.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GOTGCTL);
+    if (gotgctl.b.sesreqscs) /* Session request success                                          */
+    {
+      if (USB_OTG_IsDeviceMode(pdev))
+      {
+
+      }
+      /* Clear Session Request */
+      gotgctl.d32 = 0;
+      gotgctl.b.sesreq = 1;
+      USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GOTGCTL, gotgctl.d32, 0);
+    }
+    else /* Session request failure                                          */
+    {
+      if (USB_OTG_IsDeviceMode(pdev))
+      {
+
+      }
+    }
+  }
+  /* ----> HNP SUCCESS or FAILURE INTERRUPT <---- */
+  if (gotgint.b.hstnegsucstschng)
+  {
+    gotgctl.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GOTGCTL);
+
+    if (gotgctl.b.hstnegscs)                                    /* Host negotiation success                                         */
+    {
+      if (USB_OTG_IsHostMode(pdev))                              /* The core AUTOMATICALLY sets the Host mode                        */
+      {
+
+      }
+    }
+    else                                                        /* Host negotiation failure */
+    {
+
+    }
+    gotgint.b.hstnegsucstschng = 1;                             /* Ack "Host Negotiation Success Status Change" interrupt.          */
+  }
+  /* ----> HOST NEGOTIATION DETECTED INTERRUPT <---- */
+  if (gotgint.b.hstnegdet)
+  {
+    if (USB_OTG_IsDeviceMode(pdev))                              /* The core AUTOMATICALLY sets the Host mode                        */
+    {
+
+    }
+    else
+    {
+
+    }
+  }
+  if (gotgint.b.adevtoutchng)
+  {}
+  if (gotgint.b.debdone)
+  {
+    USB_OTG_ResetPort(pdev);
+  }
+  /* Clear OTG INT */
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GOTGINT, gotgint.d32);
+  return 1;
+}
+
+
+/**
+  * @brief  USB_OTG_HandleConnectorIDStatusChange_ISR
+  *         handles the Connector ID Status Change Interrupt
+  * @param  None
+  * @retval : status
+  */
+static uint32_t USB_OTG_HandleConnectorIDStatusChange_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTMSK_TypeDef  gintmsk;
+  USB_OTG_GOTGCTL_TypeDef   gotgctl;
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  
+  gintsts.d32 = 0 ;
+  gintmsk.d32 = 0 ;
+  gotgctl.d32 = 0 ;
+  gintmsk.b.sofintr = 1;
+  
+  USB_OTG_MODIFY_REG32(&pdev->regs.GREGS->GINTMSK, gintmsk.d32, 0);
+  gotgctl.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GOTGCTL);
+  
+  /* B-Device connector (Device Mode) */
+  if (gotgctl.b.conidsts)
+  {
+    USB_OTG_DisableGlobalInt(pdev);
+    USB_OTG_CoreInitDev(pdev);
+    USB_OTG_EnableGlobalInt(pdev);
+    pdev->otg.OTG_State = B_PERIPHERAL;
+  }
+  else
+  {
+    USB_OTG_DisableGlobalInt(pdev);
+    USB_OTG_CoreInitHost(pdev);
+    USB_OTG_EnableGlobalInt(pdev);
+    pdev->otg.OTG_State = A_HOST;
+  }
+  /* Set flag and clear interrupt */
+  gintsts.b.conidstschng = 1;
+  USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  return 1;
+}
+
+
+/**
+  * @brief  USB_OTG_HandleSessionRequest_ISR 
+  *           Initiating the Session Request Protocol
+  * @param  None
+  * @retval : status
+  */
+static uint32_t USB_OTG_HandleSessionRequest_ISR(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GINTSTS_TypeDef  gintsts;
+  USB_OTG_GOTGCTL_TypeDef   gotgctl;
+
+
+  gotgctl.d32 = 0;
+  gintsts.d32 = 0;
+
+  gotgctl.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GOTGCTL );
+  if (USB_OTG_IsDeviceMode(pdev) && (gotgctl.b.bsesvld))
+  {
+
+  }
+  else if (gotgctl.b.asesvld)
+  {
+  }
+  /* Clear interrupt */
+  gintsts.d32 = 0;
+  gintsts.b.sessreqintr = 1;
+  USB_OTG_WRITE_REG32 (&pdev->regs.GREGS->GINTSTS, gintsts.d32);
+  return 1;
+}
+
+
+/**
+  * @brief  USB_OTG_InitiateSRP
+  *         Initiate an srp session
+  * @param  None
+  * @retval : None
+  */
+void USB_OTG_InitiateSRP(USB_OTG_CORE_HANDLE *pdev)
+{
+  USB_OTG_GOTGCTL_TypeDef  otgctl;
+
+  otgctl.d32 = 0;
+
+  otgctl.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GOTGCTL );
+  if (otgctl.b.sesreq)
+  {
+    return; /* SRP in progress */
+  }
+  otgctl.b.sesreq = 1;
+  USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GOTGCTL, otgctl.d32);
+}
+
+
+/**
+  * @brief  USB_OTG_InitiateHNP
+  *         Initiate HNP
+  * @param  None
+  * @retval : None
+  */
+void USB_OTG_InitiateHNP(USB_OTG_CORE_HANDLE *pdev , uint8_t state, uint8_t mode)
+{
+  USB_OTG_GOTGCTL_TypeDef   otgctl;
+  USB_OTG_HPRT0_TypeDef    hprt0;
+  
+  otgctl.d32 = 0;
+  hprt0.d32  = 0;
+
+  otgctl.d32 = USB_OTG_READ_REG32( &pdev->regs.GREGS->GOTGCTL );
+  if (mode)
+  { /* Device mode */
+    if (state)
+    {
+
+      otgctl.b.devhnpen = 1; /* B-Dev has been enabled to perform HNP         */
+      otgctl.b.hnpreq   = 1; /* Initiate an HNP req. to the connected USB host*/
+      USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GOTGCTL, otgctl.d32);
+    }
+  }
+  else
+  { /* Host mode */
+    if (state)
+    {
+      otgctl.b.hstsethnpen = 1; /* A-Dev has enabled B-device for HNP       */
+      USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GOTGCTL, otgctl.d32);
+      /* Suspend the bus so that B-dev will disconnect indicating the initial condition for HNP to DWC_Core */
+      hprt0.d32  = USB_OTG_ReadHPRT0(pdev);
+      hprt0.b.prtsusp = 1; /* The core clear this bit when disconnect interrupt generated (GINTSTS.DisconnInt = '1') */
+      USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
+    }
+  }
+}
+
+
+/**
+  * @brief  USB_OTG_GetCurrentState
+  *         Return current OTG State
+  * @param  None
+  * @retval : None
+  */
+uint32_t USB_OTG_GetCurrentState (USB_OTG_CORE_HANDLE *pdev)
+{
+  return pdev->otg.OTG_State;
+}
+
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+#endif
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/usb_bsp_template.c
@@ -1,0 +1,206 @@
+/**
+  ******************************************************************************
+  * @file    usb_bsp.c
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   This file is responsible to offer board support package and is
+  *          configurable by user.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_bsp.h"
+
+/** @addtogroup USB_OTG_DRIVER
+* @{
+*/
+
+/** @defgroup USB_BSP
+  * @brief This file is responsible to offer board support package
+  * @{
+  */ 
+
+/** @defgroup USB_BSP_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_BSP_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+
+
+
+/** @defgroup USB_BSP_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_BSP_Private_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_BSP_Private_FunctionPrototypes
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_BSP_Private_Functions
+  * @{
+  */ 
+
+
+/**
+  * @brief  USB_OTG_BSP_Init
+  *         Initilizes BSP configurations
+  * @param  None
+  * @retval None
+  */
+
+void USB_OTG_BSP_Init(void)
+{
+
+}
+/**
+  * @brief  USB_OTG_BSP_EnableInterrupt
+  *         Enabele USB Global interrupt
+  * @param  None
+  * @retval None
+  */
+void USB_OTG_BSP_EnableInterrupt(void)
+{
+
+}
+
+/**
+  * @brief  BSP_Drive_VBUS
+  *         Drives the Vbus signal through IO
+  * @param  speed : Full, Low 
+  * @param  state : VBUS states
+  * @retval None
+  */
+
+void USB_OTG_BSP_DriveVBUS(uint32_t speed, uint8_t state)
+{
+
+}
+
+/**
+  * @brief  USB_OTG_BSP_ConfigVBUS
+  *         Configures the IO for the Vbus and OverCurrent
+  * @param  Speed : Full, Low 
+  * @retval None
+  */
+
+void  USB_OTG_BSP_ConfigVBUS(uint32_t speed)
+{
+
+}
+
+/**
+  * @brief  USB_OTG_BSP_TimeInit
+  *         Initialises delay unit Systick timer /Timer2
+  * @param  None
+  * @retval None
+  */
+void USB_OTG_BSP_TimeInit ( void )
+{
+
+}
+
+/**
+  * @brief  USB_OTG_BSP_uDelay
+  *         This function provides delay time in micro sec
+  * @param  usec : Value of delay required in micro sec
+  * @retval None
+  */
+void USB_OTG_BSP_uDelay (const uint32_t usec)
+{
+
+  uint32_t count = 0;
+  const uint32_t utime = (120 * usec / 7);
+  do
+  {
+    if ( ++count > utime )
+    {
+      return ;
+    }
+  }
+  while (1); 
+  
+}
+
+
+/**
+  * @brief  USB_OTG_BSP_mDelay
+  *          This function provides delay time in milli sec
+  * @param  msec : Value of delay required in milli sec
+  * @retval None
+  */
+void USB_OTG_BSP_mDelay (const uint32_t msec)
+{
+
+    USB_OTG_BSP_uDelay(msec * 1000);    
+
+}
+
+
+/**
+  * @brief  USB_OTG_BSP_TimerIRQ
+  *         Time base IRQ
+  * @param  None
+  * @retval None
+  */
+
+void USB_OTG_BSP_TimerIRQ (void)
+{
+
+} 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_otg/usb_conf_template.h
@@ -1,0 +1,306 @@
+/**
+  ******************************************************************************
+  * @file    usb_conf.h
+  * @author  MCD Application Team
+  * @version V2.1.0
+  * @date    19-March-2012
+  * @brief   General low level driver configuration
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_CONF__H__
+#define __USB_CONF__H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_conf.h"
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USB_CONF
+  * @brief USB low level driver configuration file
+  * @{
+  */ 
+
+/** @defgroup USB_CONF_Exported_Defines
+  * @{
+  */ 
+
+/* USB Core and PHY interface configuration.
+   Tip: To avoid modifying these defines each time you need to change the USB
+        configuration, you can declare the needed define in your toolchain
+        compiler preprocessor.
+   */
+/****************** USB OTG FS PHY CONFIGURATION *******************************
+*  The USB OTG FS Core supports one on-chip Full Speed PHY.
+*  
+*  The USE_EMBEDDED_PHY symbol is defined in the project compiler preprocessor 
+*  when FS core is used.
+*******************************************************************************/
+#ifndef USE_USB_OTG_FS
+ //#define USE_USB_OTG_FS
+#endif /* USE_USB_OTG_FS */
+
+#ifdef USE_USB_OTG_FS 
+ #define USB_OTG_FS_CORE
+#endif
+
+/****************** USB OTG HS PHY CONFIGURATION *******************************
+*  The USB OTG HS Core supports two PHY interfaces:
+*   (i)  An ULPI interface for the external High Speed PHY: the USB HS Core will 
+*        operate in High speed mode
+*   (ii) An on-chip Full Speed PHY: the USB HS Core will operate in Full speed mode
+*
+*  You can select the PHY to be used using one of these two defines:
+*   (i)  USE_ULPI_PHY: if the USB OTG HS Core is to be used in High speed mode 
+*   (ii) USE_EMBEDDED_PHY: if the USB OTG HS Core is to be used in Full speed mode
+*
+*  Notes: 
+*   - The USE_ULPI_PHY symbol is defined in the project compiler preprocessor as 
+*     default PHY when HS core is used.
+*   - On STM322xG-EVAL and STM324xG-EVAL boards, only configuration(i) is available.
+*     Configuration (ii) need a different hardware, for more details refer to your
+*     STM32 device datasheet.
+*******************************************************************************/
+#ifndef USE_USB_OTG_HS
+ //#define USE_USB_OTG_HS
+#endif /* USE_USB_OTG_HS */
+
+#ifndef USE_ULPI_PHY
+ //#define USE_ULPI_PHY
+#endif /* USE_ULPI_PHY */
+
+#ifndef USE_EMBEDDED_PHY
+ //#define USE_EMBEDDED_PHY
+#endif /* USE_EMBEDDED_PHY */
+
+#ifdef USE_USB_OTG_HS 
+ #define USB_OTG_HS_CORE
+#endif
+
+/*******************************************************************************
+*                      FIFO Size Configuration in Device mode
+*  
+*  (i) Receive data FIFO size = RAM for setup packets + 
+*                   OUT endpoint control information +
+*                   data OUT packets + miscellaneous
+*      Space = ONE 32-bits words
+*     --> RAM for setup packets = 10 spaces
+*        (n is the nbr of CTRL EPs the device core supports) 
+*     --> OUT EP CTRL info      = 1 space
+*        (one space for status information written to the FIFO along with each 
+*        received packet)
+*     --> data OUT packets      = (Largest Packet Size / 4) + 1 spaces 
+*        (MINIMUM to receive packets)
+*     --> OR data OUT packets  = at least 2*(Largest Packet Size / 4) + 1 spaces 
+*        (if high-bandwidth EP is enabled or multiple isochronous EPs)
+*     --> miscellaneous = 1 space per OUT EP
+*        (one space for transfer complete status information also pushed to the 
+*        FIFO with each endpoint's last packet)
+*
+*  (ii)MINIMUM RAM space required for each IN EP Tx FIFO = MAX packet size for 
+*       that particular IN EP. More space allocated in the IN EP Tx FIFO results
+*       in a better performance on the USB and can hide latencies on the AHB.
+*
+*  (iii) TXn min size = 16 words. (n  : Transmit FIFO index)
+*   (iv) When a TxFIFO is not used, the Configuration should be as follows: 
+*       case 1 :  n > m    and Txn is not used    (n,m  : Transmit FIFO indexes)
+*       --> Txm can use the space allocated for Txn.
+*       case2  :  n < m    and Txn is not used    (n,m  : Transmit FIFO indexes)
+*       --> Txn should be configured with the minimum space of 16 words
+*  (v) The FIFO is used optimally when used TxFIFOs are allocated in the top 
+*       of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones.
+*******************************************************************************/
+
+/*******************************************************************************
+*                     FIFO Size Configuration in Host mode
+*  
+*  (i) Receive data FIFO size = (Largest Packet Size / 4) + 1 or 
+*                             2x (Largest Packet Size / 4) + 1,  If a 
+*                             high-bandwidth channel or multiple isochronous 
+*                             channels are enabled
+*
+*  (ii) For the host nonperiodic Transmit FIFO is the largest maximum packet size 
+*      for all supported nonperiodic OUT channels. Typically, a space 
+*      corresponding to two Largest Packet Size is recommended.
+*
+*  (iii) The minimum amount of RAM required for Host periodic Transmit FIFO is 
+*        the largest maximum packet size for all supported periodic OUT channels.
+*        If there is at least one High Bandwidth Isochronous OUT endpoint, 
+*        then the space must be at least two times the maximum packet size for 
+*        that channel.
+*******************************************************************************/
+ 
+/****************** USB OTG HS CONFIGURATION **********************************/
+#ifdef USB_OTG_HS_CORE
+ #define RX_FIFO_HS_SIZE                          512
+ #define TX0_FIFO_HS_SIZE                         512
+ #define TX1_FIFO_HS_SIZE                         512
+ #define TX2_FIFO_HS_SIZE                          0
+ #define TX3_FIFO_HS_SIZE                          0
+ #define TX4_FIFO_HS_SIZE                          0
+ #define TX5_FIFO_HS_SIZE                          0
+ #define TXH_NP_HS_FIFOSIZ                         96
+ #define TXH_P_HS_FIFOSIZ                          96
+
+// #define USB_OTG_HS_LOW_PWR_MGMT_SUPPORT
+// #define USB_OTG_HS_SOF_OUTPUT_ENABLED
+
+// #define USB_OTG_INTERNAL_VBUS_ENABLED
+ #define USB_OTG_EXTERNAL_VBUS_ENABLED
+
+ #ifdef USE_ULPI_PHY
+  #define USB_OTG_ULPI_PHY_ENABLED
+ #endif
+ #ifdef USE_EMBEDDED_PHY
+   #define USB_OTG_EMBEDDED_PHY_ENABLED
+ #endif
+ #define USB_OTG_HS_INTERNAL_DMA_ENABLED
+ #define USB_OTG_HS_DEDICATED_EP1_ENABLED
+#endif
+
+/****************** USB OTG FS CONFIGURATION **********************************/
+#ifdef USB_OTG_FS_CORE
+ #define RX_FIFO_FS_SIZE                          128
+ #define TX0_FIFO_FS_SIZE                          64
+ #define TX1_FIFO_FS_SIZE                         128
+ #define TX2_FIFO_FS_SIZE                          0
+ #define TX3_FIFO_FS_SIZE                          0
+ #define TXH_NP_HS_FIFOSIZ                         96
+ #define TXH_P_HS_FIFOSIZ                          96
+
+// #define USB_OTG_FS_LOW_PWR_MGMT_SUPPORT
+// #define USB_OTG_FS_SOF_OUTPUT_ENABLED
+#endif
+
+/****************** USB OTG MISC CONFIGURATION ********************************/
+//#define VBUS_SENSING_ENABLED
+
+/****************** USB OTG MODE CONFIGURATION ********************************/
+//#define USE_HOST_MODE
+#define USE_DEVICE_MODE
+//#define USE_OTG_MODE
+
+#ifndef USB_OTG_FS_CORE
+ #ifndef USB_OTG_HS_CORE
+    #error  "USB_OTG_HS_CORE or USB_OTG_FS_CORE should be defined"
+ #endif
+#endif
+
+#ifndef USE_DEVICE_MODE
+ #ifndef USE_HOST_MODE
+    #error  "USE_DEVICE_MODE or USE_HOST_MODE should be defined"
+ #endif
+#endif
+
+#ifndef USE_USB_OTG_HS
+ #ifndef USE_USB_OTG_FS
+    #error  "USE_USB_OTG_HS or USE_USB_OTG_FS should be defined"
+ #endif
+#else //USE_USB_OTG_HS
+ #ifndef USE_ULPI_PHY
+  #ifndef USE_EMBEDDED_PHY
+     #error  "USE_ULPI_PHY or USE_EMBEDDED_PHY should be defined"
+  #endif
+ #endif
+#endif
+
+/****************** C Compilers dependant keywords ****************************/
+/* In HS mode and when the DMA is used, all variables and data structures dealing
+   with the DMA during the transaction process should be 4-bytes aligned */    
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined   (__GNUC__)        /* GNU Compiler */
+    #define __ALIGN_END    __attribute__ ((aligned (4)))
+    #define __ALIGN_BEGIN         
+  #else                           
+    #define __ALIGN_END
+    #if defined   (__CC_ARM)      /* ARM Compiler */
+      #define __ALIGN_BEGIN    __align(4)  
+    #elif defined (__ICCARM__)    /* IAR Compiler */
+      #define __ALIGN_BEGIN 
+    #elif defined  (__TASKING__)  /* TASKING Compiler */
+      #define __ALIGN_BEGIN    __align(4) 
+    #endif /* __CC_ARM */  
+  #endif /* __GNUC__ */ 
+#else
+  #define __ALIGN_BEGIN
+  #define __ALIGN_END   
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+
+/* __packed keyword used to decrease the data type alignment to 1-byte */
+#if defined (__CC_ARM)         /* ARM Compiler */
+  #define __packed    __packed
+#elif defined (__ICCARM__)     /* IAR Compiler */
+  #define __packed    __packed
+#elif defined   ( __GNUC__ )   /* GNU Compiler */                        
+  #define __packed    __attribute__ ((__packed__))
+#elif defined   (__TASKING__)  /* TASKING Compiler */
+  #define __packed    __unaligned
+#endif /* __CC_ARM */
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_CONF_Exported_Types
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_CONF_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CONF_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_CONF_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+#endif //__USB_CONF__H__
+
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usb_bsp.c
@@ -1,0 +1,388 @@
+/**
+  ******************************************************************************
+  * @file    usb_bsp.c
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   USB bsp
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_bsp.h"
+#include "usb_conf.h"
+
+#include "stm32f4xx_tim.h"
+
+/** @addtogroup USBH_USER
+* @{
+*/
+
+/** @defgroup USB_BSP
+  * @brief This file is responsible to offer board support package
+  * @{
+  */ 
+
+/** @defgroup USB_BSP_Private_Defines
+  * @{
+  */ 
+
+#define USE_ACCURATE_TIME
+
+#define TIM_MSEC_DELAY                     0x01
+#define TIM_USEC_DELAY                     0x02
+#define HOST_OVRCURR_PORT                  GPIOE
+#define HOST_OVRCURR_LINE                  GPIO_Pin_1
+#define HOST_OVRCURR_PORT_SOURCE           GPIO_PortSourceGPIOE
+#define HOST_OVRCURR_PIN_SOURCE            GPIO_PinSource1
+#define HOST_OVRCURR_PORT_RCC              RCC_APB2Periph_GPIOE
+#define HOST_OVRCURR_EXTI_LINE             EXTI_Line1
+#define HOST_OVRCURR_IRQn                  EXTI1_IRQn 
+
+#define HOST_POWERSW_PORT_RCC             RCC_AHB1Periph_GPIOC
+#define HOST_POWERSW_PORT                 GPIOC
+#define HOST_POWERSW_VBUS                 GPIO_Pin_4
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USB_BSP_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+uint16_t tmprg=0;
+
+
+/** @defgroup USB_BSP_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_BSP_Private_Variables
+  * @{
+  */ 
+ErrorStatus HSEStartUpStatus;
+#ifdef USE_ACCURATE_TIME 
+__IO uint32_t BSP_delay = 0;
+#endif
+/**
+  * @}
+  */ 
+
+/** @defgroup USBH_BSP_Private_FunctionPrototypes
+  * @{
+  */ 
+
+#ifdef USE_ACCURATE_TIME 
+static void BSP_SetTime(uint8_t Unit);
+static void BSP_Delay(uint32_t nTime,uint8_t Unit);
+#endif
+static void USB_OTG_BSP_TimeInit ( void );
+/**
+  * @}
+  */ 
+
+/** @defgroup USB_BSP_Private_Functions
+  * @{
+  */ 
+
+/**
+  * @brief  USB_OTG_BSP_Init
+  *         Initilizes BSP configurations
+  * @param  None
+  * @retval None
+  */
+
+void USB_OTG_BSP_Init(USB_OTG_CORE_HANDLE *pdev)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;    
+
+  /* Configuration for USB OTG HS used in FS mode with EMBEDDED PHY */
+  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB , ENABLE);
+  
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_14 | GPIO_Pin_15;
+  
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
+  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
+  GPIO_Init(GPIOB, &GPIO_InitStructure);  
+  
+  GPIO_PinAFConfig(GPIOB,GPIO_PinSource14,GPIO_AF_OTG2_FS) ; 
+  GPIO_PinAFConfig(GPIOB,GPIO_PinSource15,GPIO_AF_OTG2_FS) ;
+  
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
+  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
+  GPIO_Init(GPIOB, &GPIO_InitStructure);  
+    
+  RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_OTG_HS, ENABLE);
+
+  USB_OTG_BSP_TimeInit();
+}
+
+/**
+  * @brief  USB_OTG_BSP_EnableInterrupt
+  *         Configures USB Global interrupt
+  * @param  None
+  * @retval None
+  */
+void USB_OTG_BSP_EnableInterrupt(USB_OTG_CORE_HANDLE *pdev)
+{
+  NVIC_InitTypeDef NVIC_InitStructure; 
+     
+  NVIC_InitStructure.NVIC_IRQChannel = OTG_HS_IRQn;
+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 4;
+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+  NVIC_Init(&NVIC_InitStructure);  
+}
+
+/**
+  * @brief  BSP_Drive_VBUS
+  *         Drives the Vbus signal through IO
+  * @param  state : VBUS states
+  * @retval None
+  */
+
+void USB_OTG_BSP_DriveVBUS(USB_OTG_CORE_HANDLE *pdev, uint8_t state)
+{
+  /*
+  On-chip 5 V VBUS generation is not supported. For this reason, a charge pump 
+  or, if 5 V are available on the application board, a basic power switch, must 
+  be added externally to drive the 5 V VBUS line. The external charge pump can 
+  be driven by any GPIO output. When the application decides to power on VBUS 
+  using the chosen GPIO, it must also set the port power bit in the host port 
+  control and status register (PPWR bit in OTG_FS_HPRT).
+  
+  Bit 12 PPWR: Port power
+  The application uses this field to control power to this port, and the core 
+  clears this bit on an overcurrent condition.
+  */  
+  
+  if (0 == state)
+  { 
+    /* DISABLE is needed on output of the Power Switch */
+    GPIO_SetBits(HOST_POWERSW_PORT, HOST_POWERSW_VBUS);
+  }
+  else
+  {
+    /*ENABLE the Power Switch by driving the Enable LOW */
+    GPIO_ResetBits(HOST_POWERSW_PORT, HOST_POWERSW_VBUS);
+  }
+  
+}
+
+/**
+  * @brief  USB_OTG_BSP_ConfigVBUS
+  *         Configures the IO for the Vbus and OverCurrent
+  * @param  None
+  * @retval None
+  */
+void  USB_OTG_BSP_ConfigVBUS(USB_OTG_CORE_HANDLE *pdev)
+{
+
+  GPIO_InitTypeDef GPIO_InitStructure; 
+  
+  RCC_AHB1PeriphClockCmd(HOST_POWERSW_PORT_RCC , ENABLE);
+
+  GPIO_InitStructure.GPIO_Pin = HOST_POWERSW_VBUS;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
+  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
+  GPIO_Init(HOST_POWERSW_PORT,&GPIO_InitStructure);
+
+  /* By Default, DISABLE is needed on output of the Power Switch */
+  GPIO_SetBits(HOST_POWERSW_PORT, HOST_POWERSW_VBUS);
+  
+  USB_OTG_BSP_mDelay(200);   /* Delay is need for stabilising the Vbus Low 
+  in Reset Condition, when Vbus=1 and Reset-button is pressed by user */
+
+}
+
+/**
+  * @brief  USB_OTG_BSP_TimeInit
+  *         Initializes delay unit using Timer2
+  * @param  None
+  * @retval None
+  */
+static void USB_OTG_BSP_TimeInit ( void )
+{
+#ifdef USE_ACCURATE_TIME   
+  NVIC_InitTypeDef NVIC_InitStructure;
+     
+  /* Enable the TIM2 global Interrupt */
+  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 5;
+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+  
+  NVIC_Init(&NVIC_InitStructure);
+  
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);  
+#endif  
+}
+
+/**
+  * @brief  USB_OTG_BSP_uDelay
+  *         This function provides delay time in micro sec
+  * @param  usec : Value of delay required in micro sec
+  * @retval None
+  */
+void USB_OTG_BSP_uDelay (const uint32_t usec)
+{
+  
+#ifdef USE_ACCURATE_TIME    
+  BSP_Delay(usec,TIM_USEC_DELAY); 
+#else
+  __IO uint32_t count = 0;
+  const uint32_t utime = (120 * usec / 7);
+  do
+  {
+    if ( ++count > utime )
+    {
+      return ;
+    }
+  }
+  while (1);
+#endif   
+  
+}
+
+
+/**
+  * @brief  USB_OTG_BSP_mDelay
+  *          This function provides delay time in milli sec
+  * @param  msec : Value of delay required in milli sec
+  * @retval None
+  */
+void USB_OTG_BSP_mDelay (const uint32_t msec)
+{ 
+#ifdef USE_ACCURATE_TIME  
+    BSP_Delay(msec,TIM_MSEC_DELAY);   
+#else
+    USB_OTG_BSP_uDelay(msec * 1000);   
+#endif    
+
+}
+
+
+/**
+  * @brief  USB_OTG_BSP_TimerIRQ
+  *         Time base IRQ
+  * @param  None
+  * @retval None
+  */
+
+void USB_OTG_BSP_TimerIRQ (void)
+{
+#ifdef USE_ACCURATE_TIME 
+  if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
+  {
+    TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
+    if (BSP_delay > 0x00)
+    { 
+      BSP_delay--;
+    }
+    else
+    {
+      TIM_Cmd(TIM2,DISABLE);
+    }
+  }
+#endif  
+} 
+
+#ifdef USE_ACCURATE_TIME 
+/**
+  * @brief  BSP_Delay
+  *         Delay routine based on TIM2
+  * @param  nTime : Delay Time 
+  * @param  unit : Delay Time unit : milli sec / micro sec
+  * @retval None
+  */
+static void BSP_Delay(uint32_t nTime, uint8_t unit)
+{
+  
+  BSP_delay = nTime;
+  BSP_SetTime(unit);  
+  while(BSP_delay != 0);
+  TIM_Cmd(TIM2,DISABLE);
+}
+
+/**
+  * @brief  BSP_SetTime
+  *         Configures TIM2 for delay routine based on TIM2
+  * @param  unit : msec /usec
+  * @retval None
+  */
+static void BSP_SetTime(uint8_t unit)
+{
+  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
+  
+  TIM_Cmd(TIM2,DISABLE);
+  TIM_ITConfig(TIM2, TIM_IT_Update, DISABLE); 
+  
+  
+  if(unit == TIM_USEC_DELAY)
+  {  
+    TIM_TimeBaseStructure.TIM_Period = 11;
+  }
+  else if(unit == TIM_MSEC_DELAY)
+  {
+    TIM_TimeBaseStructure.TIM_Period = 11999;
+  }
+  TIM_TimeBaseStructure.TIM_Prescaler = 5;
+  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
+  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
+  
+  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
+  TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
+  
+  TIM_ARRPreloadConfig(TIM2, ENABLE);
+  
+  /* TIM IT enable */
+  TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
+  
+  /* TIM2 enable counter */ 
+  TIM_Cmd(TIM2, ENABLE);  
+} 
+
+#endif
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/ 
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usb_conf.h
@@ -1,0 +1,312 @@
+/**
+  ******************************************************************************
+  * @file    usb_conf.h
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   General low level driver configuration
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software
+  * distributed under the License is distributed on an "AS IS" BASIS,
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
+  * See the License for the specific language governing permissions and
+  * limitations under the License
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_CONF__H__
+#define __USB_CONF__H__
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx.h"
+#include "stm32f429i_discovery.h"
+#include "stm32f429i_discovery_lcd.h"
+#include "stm32f429i_discovery_ioe.h"
+#include "stm32f429i_discovery_sdram.h"
+
+/** @addtogroup USB_OTG_DRIVER
+  * @{
+  */
+   
+/** @defgroup USB_CONF
+  * @brief USB low level driver configuration file
+  * @{
+  */
+
+/** @defgroup USB_CONF_Exported_Defines
+  * @{
+  */
+
+/* USB Core and PHY interface configuration
+   Tip: To avoid modifying these defines each time you need to change the USB
+        configuration, you can declare the needed define in your toolchain
+        compiler preprocessor
+   */
+/****************** USB OTG FS PHY CONFIGURATION *******************************
+*  The USB OTG FS Core supports one on-chip Full Speed PHY
+*
+*  The USE_EMBEDDED_PHY symbol is defined in the project compiler preprocessor
+*  when FS core is used
+*******************************************************************************/
+#ifndef USE_USB_OTG_FS
+ //#define USE_USB_OTG_FS
+#endif /* USE_USB_OTG_FS */
+
+#ifdef USE_USB_OTG_FS
+ //#define USB_OTG_FS_CORE
+#endif
+
+/****************** USB OTG HS PHY CONFIGURATION *******************************
+*  The USB OTG HS Core supports two PHY interfaces:
+*   (i)  An ULPI interface for the external High Speed PHY: the USB HS Core will
+*        operate in High speed mode
+*   (ii) An on-chip Full Speed PHY: the USB HS Core will operate in Full speed mode
+*
+*  You can select the PHY to be used using one of these two defines:
+*   (i)  USE_ULPI_PHY: if the USB OTG HS Core is to be used in High speed mode
+*   (ii) USE_EMBEDDED_PHY: if the USB OTG HS Core is to be used in Full speed mode
+*
+*  Notes:
+*   - The USE_ULPI_PHY symbol is defined in the project compiler preprocessor as
+*     default PHY when HS core is used.
+*   - On STM322xG-EVAL and STM324xG-EVAL boards, only configuration(i) is available
+*     Configuration (ii) need a different hardware, for more details refer to your
+*     STM32 device datasheet
+*******************************************************************************/
+#ifndef USE_USB_OTG_HS
+ #define USE_USB_OTG_HS
+#endif /* USE_USB_OTG_HS */
+
+#ifndef USE_ULPI_PHY
+ //#define USE_ULPI_PHY
+#endif /* USE_ULPI_PHY */
+
+#ifndef USE_EMBEDDED_PHY
+ #define USE_EMBEDDED_PHY
+#endif /* USE_EMBEDDED_PHY */
+
+#ifdef USE_USB_OTG_HS
+ #define USB_OTG_HS_CORE
+#endif
+/*******************************************************************************
+*                      FIFO Size Configuration in Device mode
+*  
+*  (i) Receive data FIFO size = RAM for setup packets +
+*                   OUT endpoint control information +
+*                   data OUT packets + miscellaneous
+*      Space = ONE 32-bits words
+*     --> RAM for setup packets = 10 spaces
+*        (n is the nbr of CTRL EPs the device core supports)
+*     --> OUT EP CTRL info      = 1 space
+*        (one space for status information written to the FIFO along with each
+*        received packet)
+*     --> data OUT packets      = (Largest Packet Size / 4) + 1 spaces
+*        (MINIMUM to receive packets)
+*     --> OR data OUT packets  = at least 2*(Largest Packet Size / 4) + 1 spaces
+*        (if high-bandwidth EP is enabled or multiple isochronous EPs)
+*     --> miscellaneous = 1 space per OUT EP
+*        (one space for transfer complete status information also pushed to the
+*        FIFO with each endpoint's last packet)
+*
+*  (ii)MINIMUM RAM space required for each IN EP Tx FIFO = MAX packet size for
+*       that particular IN EP. More space allocated in the IN EP Tx FIFO results
+*       in a better performance on the USB and can hide latencies on the AHB
+*
+*  (iii) TXn min size = 16 words. (n  : Transmit FIFO index)
+*   (iv) When a TxFIFO is not used, the Configuration should be as follows:
+*       case 1 :  n > m    and Txn is not used    (n,m  : Transmit FIFO indexes)
+*       --> Txm can use the space allocated for Txn
+*       case2  :  n < m    and Txn is not used    (n,m  : Transmit FIFO indexes)
+*       --> Txn should be configured with the minimum space of 16 words
+*  (v) The FIFO is used optimally when used TxFIFOs are allocated in the top
+*       of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones
+*   (vi) In HS case12 FIFO locations should be reserved for internal DMA registers
+*        so total FIFO size should be 1012 Only instead of 1024
+*******************************************************************************/
+
+/*******************************************************************************
+*                     FIFO Size Configuration in Host mode
+*  
+*  (i) Receive data FIFO size = (Largest Packet Size / 4) + 1 or
+*                             2x (Largest Packet Size / 4) + 1,  If a
+*                             high-bandwidth channel or multiple isochronous
+*                             channels are enabled
+*
+*  (ii) For the host nonperiodic Transmit FIFO is the largest maximum packet size
+*      for all supported nonperiodic OUT channels. Typically, a space
+*      corresponding to two Largest Packet Size is recommended
+*
+*  (iii) The minimum amount of RAM required for Host periodic Transmit FIFO is
+*        the largest maximum packet size for all supported periodic OUT channels
+*        If there is at least one High Bandwidth Isochronous OUT endpoint,
+*        then the space must be at least two times the maximum packet size for
+*        that channel
+*******************************************************************************/
+ 
+/****************** USB OTG HS CONFIGURATION **********************************/
+#ifdef USB_OTG_HS_CORE
+ #define RX_FIFO_HS_SIZE                          512
+ #define TX0_FIFO_HS_SIZE                         128
+ #define TX1_FIFO_HS_SIZE                         372
+ #define TX2_FIFO_HS_SIZE                          0
+ #define TX3_FIFO_HS_SIZE                          0
+ #define TX4_FIFO_HS_SIZE                          0
+ #define TX5_FIFO_HS_SIZE                          0
+ #define TXH_NP_HS_FIFOSIZ                        256
+ #define TXH_P_HS_FIFOSIZ                         256
+
+// #define USB_OTG_HS_SOF_OUTPUT_ENABLED
+ #define USB_OTG_EXTERNAL_VBUS_ENABLED
+// #define USB_OTG_INTERNAL_VBUS_ENABLED
+
+ #ifdef USE_ULPI_PHY
+  #define USB_OTG_ULPI_PHY_ENABLED
+ #endif
+ #ifdef USE_EMBEDDED_PHY
+   #define USB_OTG_EMBEDDED_PHY_ENABLED
+   /* wakeup is working only when HS core is configured in FS mode */
+   //#define USB_OTG_HS_LOW_PWR_MGMT_SUPPORT
+ #endif
+ //#define USB_OTG_HS_INTERNAL_DMA_ENABLED
+ //#define USB_OTG_HS_DEDICATED_EP1_ENABLED
+#endif
+
+/****************** USB OTG FS CONFIGURATION **********************************/
+#ifdef USB_OTG_FS_CORE
+
+ #define RX_FIFO_FS_SIZE                          128
+ #define TX0_FIFO_FS_SIZE                          64
+ #define TX1_FIFO_FS_SIZE                         128
+ #define TX2_FIFO_FS_SIZE                          0
+ #define TX3_FIFO_FS_SIZE                          0
+
+ #define TXH_NP_FS_FIFOSIZ                         96
+ #define TXH_P_FS_FIFOSIZ                          96
+
+// #define USB_OTG_FS_LOW_PWR_MGMT_SUPPORT
+// #define USB_OTG_FS_SOF_OUTPUT_ENABLED
+#endif
+
+/****************** USB OTG MISC CONFIGURATION ********************************/
+#define VBUS_SENSING_ENABLED
+#define FreeRTOS
+/****************** USB OTG MODE CONFIGURATION ********************************/
+#define USE_HOST_MODE
+#define USE_DEVICE_MODE
+//#define USE_OTG_MODE
+
+#ifndef USB_OTG_FS_CORE
+ #ifndef USB_OTG_HS_CORE
+    #error  "USB_OTG_HS_CORE or USB_OTG_FS_CORE should be defined"
+ #endif
+#endif
+
+#ifndef USE_DEVICE_MODE
+ #ifndef USE_HOST_MODE
+    #error  "USE_DEVICE_MODE or USE_HOST_MODE should be defined"
+ #endif
+#endif
+
+#ifndef USE_USB_OTG_HS
+ #ifndef USE_USB_OTG_FS
+    #error  "USE_USB_OTG_HS or USE_USB_OTG_FS should be defined"
+ #endif
+#else //USE_USB_OTG_HS
+ #ifndef USE_ULPI_PHY
+  #ifndef USE_EMBEDDED_PHY
+     #error  "USE_ULPI_PHY or USE_EMBEDDED_PHY should be defined"
+  #endif
+ #endif
+#endif
+
+/****************** C Compilers dependant keywords ****************************/
+/* In HS mode and when the DMA is used, all variables and data structures dealing
+   with the DMA during the transaction process should be 4-bytes aligned */
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+  #if defined   (__GNUC__)        /* GNU Compiler */
+    #define __ALIGN_END    __attribute__ ((aligned (4)))
+    #define __ALIGN_BEGIN
+  #else
+    #define __ALIGN_END
+    #if defined   (__CC_ARM)      /* ARM Compiler */
+      #define __ALIGN_BEGIN    __align(4)
+    #elif defined (__ICCARM__)    /* IAR Compiler */
+      #define __ALIGN_BEGIN
+    #elif defined  (__TASKING__)  /* TASKING Compiler */
+      #define __ALIGN_BEGIN    __align(4)
+    #endif /* __CC_ARM */
+  #endif /* __GNUC__ */
+#else
+  #define __ALIGN_BEGIN
+  #define __ALIGN_END
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+
+/* __packed keyword used to decrease the data type alignment to 1-byte */
+#if defined (__CC_ARM)         /* ARM Compiler */
+  #define __packed    __packed
+#elif defined (__ICCARM__)     /* IAR Compiler */
+  #define __packed    __packed
+#elif defined   ( __GNUC__ )   /* GNU Compiler */                        
+  #define __packed    __attribute__ ((__packed__))
+#elif defined   (__TASKING__)  /* TASKING Compiler */
+  #define __packed    __unaligned
+#endif /* __CC_ARM */
+
+/**
+  * @}
+  */
+
+
+/** @defgroup USB_CONF_Exported_Types
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+/** @defgroup USB_CONF_Exported_Macros
+  * @{
+  */
+/**
+  * @}
+  */
+
+/** @defgroup USB_CONF_Exported_Variables
+  * @{
+  */
+/**
+  * @}
+  */
+
+/** @defgroup USB_CONF_Exported_FunctionsPrototype
+  * @{
+  */ 
+/**
+  * @}
+  */
+
+
+#endif //__USB_CONF__H__
+
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usb_irq.c
@@ -1,0 +1,36 @@
+
+
+#include "usb_hcd_int.h"
+#include "usbh_core.h"
+#include "usb_core.h"
+#include "usbd_core.h"
+#include "usb_conf.h"
+
+
+extern USB_OTG_CORE_HANDLE           USB_OTG_Core;
+
+/**
+  * @brief  TIM2_IRQHandler
+  *         This function handles Timer2 Handler.
+  * @param  None
+  * @retval None
+  */
+
+void TIM2_IRQHandler(void)
+{
+    extern void USB_OTG_BSP_TimerIRQ (void);
+  USB_OTG_BSP_TimerIRQ();
+}
+
+/**
+  * @brief  This function handles OTG_HS Handler.
+  * @param  None
+  * @retval None
+  */
+void OTG_HS_IRQHandler(void)
+{
+    USBH_OTG_ISR_Handler (&USB_OTG_Core);
+}
+
+
+
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usbd_conf.h
@@ -1,0 +1,151 @@
+/**
+  ******************************************************************************
+  * @file    usbd_conf.h
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_CONF__H__
+#define __USBD_CONF__H__
+
+/* Includes ------------------------------------------------------------------*/
+
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+* @{
+*/
+
+/** @defgroup USBD_CONF
+* @brief This file is the device library configuration file
+* @{
+*/
+
+/** @defgroup USBD_CONF_Exported_Defines
+* @{
+*/
+
+
+#define USBD_CFG_MAX_NUM           1
+#define USBD_ITF_MAX_NUM           1
+#define USB_MAX_STR_DESC_SIZ       64
+
+/* Class Layer Parameter MSC  */
+#define MSC_IN_EP                    0x81
+#define MSC_OUT_EP                   0x01
+#ifdef USE_USB_OTG_HS
+#ifdef USE_ULPI_PHY
+#define MSC_MAX_PACKET               512
+#else
+#define MSC_MAX_PACKET               64
+#endif
+#else  /*USE_USB_OTG_FS*/
+#define MSC_MAX_PACKET                64
+#endif
+
+#define MSC_MEDIA_PACKET             4096
+
+/* Class Layer Parameter  HID */
+#define HID_IN_EP                    0x81
+#define HID_OUT_EP                   0x01
+
+#define HID_IN_PACKET                4
+#define HID_OUT_PACKET               4
+
+/* Class Layer Parameter HID */
+#ifndef EXTERNAL_CRYSTAL_25MHz
+ #define USBD_AUDIO_FREQ                48000 /* Audio frequency in Hz. */
+
+/*
+  It is advised to set standard frequencies >= 24KHz to get best quality
+  except for STM32F10 devices, when the HSE value is 25MHz, it is advised to
+  set audio frequencies reachable with this HSE value (refer to RM0008 for
+  more details). ie. it is advised to set 16KHz value in this case.
+  Note that maximum allowed audio frequency is 96KHz (this limitation is
+  due to the codec used on the Evaluation board. The STM32 I2S cell allows
+  to  reach 192KHz frequency).
+  @note
+  When modifying this value, make sure that the I2S PLL configuration allows
+  to get minimum error on audio frequency. This configuration is set in file
+  system_stm32f2xx.c or system_stm32f10x.c.*/
+#else
+#define USBD_AUDIO_FREQ                16000  /* Audio frequency in Hz for STM32F10x devices family when 25MHz HSE value
+is used. */
+#endif /* EXTERNAL_CRYSTAL_25MHz */
+
+#define DEFAULT_VOLUME                  65    /* Default volume in % (Mute=0%, Max = 100%) in Logarithmic values.
+                                                To get accurate volume variations, it is possible to use a logarithmic
+                                                coversion table to convert from percentage to logarithmic law.
+                                                In order to keep this example code simple, this conversion is not used. */
+
+/* Use this section to modify the number of supported interfaces and configurations.
+  Note that if you modify these parameters, you have to modify the descriptors
+  accordingly in usbd_audio_core.c file */
+#define AUDIO_TOTAL_IF_NUM              0x02
+#define AUDIO_OUT_EP                    0x01
+#define AUDIO_IN_EP                     0x82
+/**
+* @}
+*/
+
+
+/** @defgroup USB_CONF_Exported_TypesDefinitions
+* @{
+*/
+/**
+* @}
+*/
+
+
+/** @defgroup USB_CONF_Exported_Macros
+* @{
+*/
+/**
+* @}
+*/
+
+/** @defgroup USB_CONF_Exported_Variables
+* @{
+*/
+/**
+* @}
+*/
+
+/** @defgroup USB_CONF_Exported_FunctionsPrototype
+* @{
+*/
+/**
+* @}
+*/
+
+#endif //__USBD_CONF__H__
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usbd_desc.c
@@ -1,0 +1,390 @@
+/**
+  ******************************************************************************
+  * @file    usbd_desc.c
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_core.h"
+#include "usbd_core.h"
+#include "usbd_desc.h"
+#include "usbd_req.h"
+#include "usbd_conf.h"
+#include "usb_regs.h"
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup USBD_DESC 
+  * @brief USBD descriptors module
+  * @{
+  */
+
+/** @defgroup USBD_DESC_Private_TypesDefinitions
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_DESC_Private_Defines
+  * @{
+  */
+
+#define USBD_VID                   0x0483
+
+#define USBD_PID                   0x5710
+
+#define USBD_HID_PID                   0x5710
+#define USBD_MSC_PID                   0x5720
+#define USBD_AUDIO_PID                 0x5730
+
+#define USBD_LANGID_STRING             0x409
+#define USBD_MANUFACTURER_STRING      "STMicroelectronics"
+
+
+#define USBD_MSC_PRODUCT_STRING        "MSC Device in HS Mode"
+#define USBD_MSC_SERIALNUMBER_STRING   "00000000001A"
+#define USBD_MSC_CONFIGURATION_STRING   "MSC Device Config"
+#define USBD_MSC_INTERFACE_STRING      "MSC Device Interface"
+
+#define USBD_HID_PRODUCT_STRING        "HID Device in HS Mode"
+#define USBD_HID_SERIALNUMBER_STRING   "00000000001B"
+#define USBD_HID_CONFIGURATION_STRING  "HID Device Config"
+#define USBD_HID_INTERFACE_STRING      "HID Device Interface"
+
+#define USBD_AUDIO_PRODUCT_STRING        "AUDIO Device in HS Mode"
+#define USBD_AUDIO_SERIALNUMBER_STRING   "00000000001C"
+#define USBD_AUDIO_CONFIGURATION_STRING  "AUDIO Device Config"
+#define USBD_AUDIO_INTERFACE_STRING      "AUDIO Device Interface"
+/**
+* @}
+*/
+
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_DESC_Private_Macros
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_DESC_Private_Variables
+  * @{
+  */
+
+extern uint8_t USBD_APP_Id;
+
+USBD_DEVICE USR_desc =
+  {
+    USBD_USR_DeviceDescriptor,
+    USBD_USR_LangIDStrDescriptor,
+    USBD_USR_ManufacturerStrDescriptor,
+    USBD_USR_ProductStrDescriptor,
+    USBD_USR_SerialStrDescriptor,
+    USBD_USR_ConfigStrDescriptor,
+    USBD_USR_InterfaceStrDescriptor,
+
+  };
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma data_alignment=4
+#endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+/* USB Standard Device Descriptor */
+__ALIGN_BEGIN uint8_t USBD_DeviceDesc[USB_SIZ_DEVICE_DESC] __ALIGN_END =
+  {
+    0x12,                       /*bLength */
+    USB_DEVICE_DESCRIPTOR_TYPE, /*bDescriptorType*/
+    0x00,                       /*bcdUSB */
+    0x02,
+    0x00,                       /*bDeviceClass*/
+    0x00,                       /*bDeviceSubClass*/
+    0x00,                       /*bDeviceProtocol*/
+    USB_OTG_MAX_EP0_SIZE,      /*bMaxPacketSize*/
+    LOBYTE(USBD_VID),           /*idVendor*/
+    HIBYTE(USBD_VID),           /*idVendor*/
+    LOBYTE(USBD_PID),           /*idVendor*/
+    HIBYTE(USBD_PID),           /*idVendor*/
+    0x00,                       /*bcdDevice rel. 2.00*/
+    0x02,
+    USBD_IDX_MFC_STR,           /*Index of manufacturer  string*/
+    USBD_IDX_PRODUCT_STR,       /*Index of product string*/
+    USBD_IDX_SERIAL_STR,        /*Index of serial number string*/
+    USBD_CFG_MAX_NUM            /*bNumConfigurations*/
+  }
+  ; /* USB_DeviceDescriptor */
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma data_alignment=4
+#endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+/* USB Standard Device Descriptor */
+__ALIGN_BEGIN uint8_t USBD_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END =
+  {
+    USB_LEN_DEV_QUALIFIER_DESC,
+    USB_DESC_TYPE_DEVICE_QUALIFIER,
+    0x00,
+    0x02,
+    0x00,
+    0x00,
+    0x00,
+    0x40,
+    0x01,
+    0x00,
+  };
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+#if defined ( __ICCARM__ ) /*!< IAR Compiler */
+#pragma data_alignment=4
+#endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+/* USB Standard Device Descriptor */
+__ALIGN_BEGIN uint8_t USBD_LangIDDesc[USB_SIZ_STRING_LANGID] __ALIGN_END =
+  {
+    USB_SIZ_STRING_LANGID,
+    USB_DESC_TYPE_STRING,
+    LOBYTE(USBD_LANGID_STRING),
+    HIBYTE(USBD_LANGID_STRING),
+  };
+/**
+* @}
+*/
+
+
+/** @defgroup USBD_DESC_Private_FunctionPrototypes
+* @{
+*/
+/**
+* @}
+*/
+
+
+/** @defgroup USBD_DESC_Private_Functions
+* @{
+*/
+
+/**
+* @brief  USBD_USR_DeviceDescriptor
+*         return the device descriptor
+* @param  speed : current device speed
+* @param  length : pointer to data length variable
+* @retval pointer to descriptor buffer
+*/
+uint8_t *  USBD_USR_DeviceDescriptor( uint8_t speed , uint16_t *length)
+{
+
+  switch (USBD_APP_Id)
+  {
+    case 0:
+      USBD_DeviceDesc[10] = LOBYTE(USBD_MSC_PID);
+      USBD_DeviceDesc[11] = HIBYTE(USBD_MSC_PID);
+      break;
+
+    case 1:
+      USBD_DeviceDesc[10] = LOBYTE(USBD_HID_PID);
+      USBD_DeviceDesc[11] = HIBYTE(USBD_HID_PID);
+      break;
+
+    case 2:
+      USBD_DeviceDesc[10] = LOBYTE(USBD_AUDIO_PID);
+      USBD_DeviceDesc[11] = HIBYTE(USBD_AUDIO_PID);
+      break;
+  }
+  *length = sizeof(USBD_DeviceDesc);
+  return USBD_DeviceDesc;
+}
+
+/**
+* @brief  USBD_USR_LangIDStrDescriptor
+*         return the LangID string descriptor
+* @param  speed : current device speed
+* @param  length : pointer to data length variable
+* @retval pointer to descriptor buffer
+*/
+uint8_t *  USBD_USR_LangIDStrDescriptor( uint8_t speed , uint16_t *length)
+{
+  *length =  sizeof(USBD_LangIDDesc);
+  return USBD_LangIDDesc;
+}
+
+
+/**
+* @brief  USBD_USR_ProductStrDescriptor
+*         return the product string descriptor
+* @param  speed : current device speed
+* @param  length : pointer to data length variable
+* @retval pointer to descriptor buffer
+*/
+uint8_t *  USBD_USR_ProductStrDescriptor( uint8_t speed , uint16_t *length)
+{
+
+  uint8_t *pbuf = NULL;
+
+  switch (USBD_APP_Id)
+  {
+    case 0:
+      pbuf = (uint8_t *)USBD_MSC_PRODUCT_STRING;
+      break;
+
+    case 1:
+      pbuf = (uint8_t *)USBD_HID_PRODUCT_STRING;
+      break;
+
+    case 2:
+      pbuf = (uint8_t *)USBD_AUDIO_PRODUCT_STRING;
+      break;
+  }
+  USBD_GetString (pbuf, USBD_StrDesc, length);
+  return USBD_StrDesc;
+}
+
+/**
+* @brief  USBD_USR_ManufacturerStrDescriptor
+*         return the manufacturer string descriptor
+* @param  speed : current device speed
+* @param  length : pointer to data length variable
+* @retval pointer to descriptor buffer
+*/
+uint8_t *  USBD_USR_ManufacturerStrDescriptor( uint8_t speed , uint16_t *length)
+{
+  USBD_GetString ((uint8_t *)USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
+  return USBD_StrDesc;
+}
+
+/**
+* @brief  USBD_USR_SerialStrDescriptor
+*         return the serial number string descriptor
+* @param  speed : current device speed
+* @param  length : pointer to data length variable
+* @retval pointer to descriptor buffer
+*/
+uint8_t *  USBD_USR_SerialStrDescriptor( uint8_t speed , uint16_t *length)
+{
+  uint8_t *pbuf = NULL;
+
+  switch (USBD_APP_Id)
+  {
+    case 0:
+      pbuf = (uint8_t *)USBD_MSC_SERIALNUMBER_STRING;
+      break;
+
+    case 1:
+      pbuf = (uint8_t *)USBD_HID_SERIALNUMBER_STRING;
+      break;
+
+    case 2:
+      pbuf = (uint8_t *)USBD_AUDIO_SERIALNUMBER_STRING;
+      break;
+  }
+  USBD_GetString (pbuf, USBD_StrDesc, length);
+  return USBD_StrDesc;
+}
+
+/**
+* @brief  USBD_USR_ConfigStrDescriptor
+*         return the configuration string descriptor
+* @param  speed : current device speed
+* @param  length : pointer to data length variable
+* @retval pointer to descriptor buffer
+*/
+uint8_t *  USBD_USR_ConfigStrDescriptor( uint8_t speed , uint16_t *length)
+{
+  uint8_t *pbuf = NULL;
+
+  switch (USBD_APP_Id)
+  {
+    case 0:
+      pbuf = (uint8_t *)USBD_MSC_CONFIGURATION_STRING;
+      break;
+
+    case 1:
+      pbuf = (uint8_t *)USBD_HID_CONFIGURATION_STRING;
+      break;
+
+    case 2:
+      pbuf = (uint8_t *)USBD_AUDIO_CONFIGURATION_STRING;
+      break;
+  }
+  USBD_GetString (pbuf, USBD_StrDesc, length);
+
+  return USBD_StrDesc;
+}
+
+
+/**
+* @brief  USBD_USR_InterfaceStrDescriptor
+*         return the interface string descriptor
+* @param  speed : current device speed
+* @param  length : pointer to data length variable
+* @retval pointer to descriptor buffer
+*/
+uint8_t *  USBD_USR_InterfaceStrDescriptor( uint8_t speed , uint16_t *length)
+{
+  uint8_t *pbuf = NULL;
+
+  switch (USBD_APP_Id)
+  {
+    case 0:
+      pbuf = (uint8_t *)USBD_MSC_INTERFACE_STRING;
+      break;
+
+    case 1:
+      pbuf = (uint8_t *)USBD_HID_INTERFACE_STRING;
+      break;
+
+    case 2:
+      pbuf = (uint8_t *)USBD_AUDIO_INTERFACE_STRING;
+      break;
+  }
+  USBD_GetString (pbuf, USBD_StrDesc, length);
+
+  return USBD_StrDesc;
+}
+
+/**
+  * @}
+  */
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usbd_desc.h
@@ -1,0 +1,121 @@
+/**
+  ******************************************************************************
+  * @file    usbd_desc.h
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef __USB_DESC_H
+#define __USB_DESC_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_def.h"
+#include <stdint.h>
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+  * @{
+  */
+
+/** @defgroup USB_DESC
+  * @brief general defines for the usb device library file
+  * @{
+  */
+
+/** @defgroup USB_DESC_Exported_Defines
+  * @{
+  */
+#define USB_DEVICE_DESCRIPTOR_TYPE              0x01
+#define USB_CONFIGURATION_DESCRIPTOR_TYPE       0x02
+#define USB_STRING_DESCRIPTOR_TYPE              0x03
+#define USB_INTERFACE_DESCRIPTOR_TYPE           0x04
+#define USB_ENDPOINT_DESCRIPTOR_TYPE            0x05
+#define USB_SIZ_DEVICE_DESC                     18
+#define USB_SIZ_STRING_LANGID                   4
+
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_DESC_Exported_TypesDefinitions
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+
+/** @defgroup USBD_DESC_Exported_Macros
+  * @{
+  */
+/**
+  * @}
+  */
+
+/** @defgroup USBD_DESC_Exported_Variables
+  * @{
+  */
+extern  uint8_t USBD_DeviceDesc  [USB_SIZ_DEVICE_DESC];
+extern  uint8_t USBD_StrDesc[USB_MAX_STR_DESC_SIZ];
+extern  uint8_t USBD_OtherSpeedCfgDesc[USB_LEN_CFG_DESC];
+extern  uint8_t USBD_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC];
+extern  uint8_t USBD_LangIDDesc[USB_SIZ_STRING_LANGID];
+extern  USBD_DEVICE USR_desc;
+/**
+  * @}
+  */
+
+/** @defgroup USBD_DESC_Exported_FunctionsPrototype
+  * @{
+  */
+
+
+uint8_t *     USBD_USR_DeviceDescriptor( uint8_t speed , uint16_t *length);
+uint8_t *     USBD_USR_LangIDStrDescriptor( uint8_t speed , uint16_t *length);
+uint8_t *     USBD_USR_ManufacturerStrDescriptor ( uint8_t speed , uint16_t *length);
+uint8_t *     USBD_USR_ProductStrDescriptor ( uint8_t speed , uint16_t *length);
+uint8_t *     USBD_USR_SerialStrDescriptor( uint8_t speed , uint16_t *length);
+uint8_t *     USBD_USR_ConfigStrDescriptor( uint8_t speed , uint16_t *length);
+uint8_t *     USBD_USR_InterfaceStrDescriptor( uint8_t speed , uint16_t *length);
+
+#ifdef USB_SUPPORT_USER_STRING_DESC
+uint8_t *     USBD_USR_USRStringDesc (uint8_t speed, uint8_t idx , uint16_t *length);
+#endif /* USB_SUPPORT_USER_STRING_DESC */
+
+/**
+  * @}
+  */
+
+#endif /* __USBD_DESC_H */
+
+/**
+  * @}
+  */
+
+/**
+* @}
+*/
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usbd_usr.c
@@ -1,0 +1,197 @@
+/**
+  ******************************************************************************
+  * @file    usbd_usr.c
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_usr.h"
+#include <stdio.h>
+
+/** @addtogroup USBD_USERo
+  * @{
+  */
+
+/** @addtogroup USBD_MSC_DEMO_USER_CALLBACKS
+  * @{
+  */
+  
+/** @defgroup USBD_USR 
+  * @brief    This file includes the user application layer
+  * @{
+  */
+
+/** @defgroup USBD_USR_Private_TypesDefinitions
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_USR_Private_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_USR_Private_Macros
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_USR_Private_Variables
+  * @{
+  */
+/*  Points to the DEVICE_PROP structure of current device */
+/*  The purpose of this register is to speed up the execution */
+
+USBD_Usr_cb_TypeDef USR_cb =
+  {
+    USBD_USR_Init,
+    USBD_USR_DeviceReset,
+    USBD_USR_DeviceConfigured,
+    USBD_USR_DeviceSuspended,
+    USBD_USR_DeviceResumed,
+    
+    USBD_USR_DeviceConnected,
+    USBD_USR_DeviceDisconnected,
+  };
+
+/**
+  * @}
+  */
+
+/** @defgroup USBD_USR_Private_Constants
+  * @{
+  */
+
+#define USER_INFORMATION1  "INFO : Single Lun configuration"
+#define USER_INFORMATION2  "INFO : microSD is used"
+/**
+  * @}
+  */
+
+
+
+/** @defgroup USBD_USR_Private_FunctionPrototypes
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+/** @defgroup USBD_USR_Private_Functions
+  * @{
+  */
+
+/**
+* @brief  Displays the message on LCD on device lib initialization
+* @param  None
+* @retval None
+*/
+void USBD_USR_Init(void)
+{
+}
+
+/**
+* @brief  Displays the message on LCD on device reset event
+* @param  speed : device speed
+* @retval None
+*/
+void USBD_USR_DeviceReset (uint8_t speed)
+{
+}
+
+
+/**
+* @brief  Displays the message on LCD on device config event
+* @param  None
+* @retval Staus
+*/
+void USBD_USR_DeviceConfigured (void)
+{
+}
+/**
+* @brief  Displays the message on LCD on device suspend event
+* @param  None
+* @retval None
+*/
+void USBD_USR_DeviceSuspended(void)
+{
+}
+
+
+/**
+* @brief  Displays the message on LCD on device resume event
+* @param  None
+* @retval None
+*/
+void USBD_USR_DeviceResumed(void)
+{
+}
+
+/**
+* @brief  USBD_USR_DeviceConnected
+*         Displays the message on LCD on device connection Event
+* @param  None
+* @retval Staus
+*/
+void USBD_USR_DeviceConnected (void)
+{
+}
+
+
+/**
+* @brief  USBD_USR_DeviceDisonnected
+*         Displays the message on LCD on device disconnection Event
+* @param  None
+* @retval Staus
+*/
+void USBD_USR_DeviceDisconnected (void)
+{
+}
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usbh_conf.h
@@ -1,0 +1,100 @@
+/**
+  ******************************************************************************
+  * @file    usbh_conf.h
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   USB Host configuration file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software
+  * distributed under the License is distributed on an "AS IS" BASIS,
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
+  * See the License for the specific language governing permissions and
+  * limitations under the License
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBH_CONF__H__
+#define __USBH_CONF__H__
+
+/* Includes ------------------------------------------------------------------*/
+/** @addtogroup USBH_OTG_DRIVER
+  * @{
+  */
+  
+/** @defgroup USBH_CONF
+  * @brief usb otg low level driver configuration file
+  * @{
+  */
+
+/** @defgroup USBH_CONF_Exported_Defines
+  * @{
+  */
+
+#define USBH_MAX_NUM_ENDPOINTS                2
+#define USBH_MAX_NUM_INTERFACES               2
+
+#ifdef USE_USB_OTG_FS
+ #define USBH_MSC_MPS_SIZE                 0x40
+#else
+ #define USBH_MSC_MPS_SIZE                 0x200
+#endif
+
+/**
+  * @}
+  */
+
+
+/** @defgroup USBH_CONF_Exported_Types
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+/** @defgroup USBH_CONF_Exported_Macros
+  * @{
+  */
+/**
+  * @}
+  */
+
+/** @defgroup USBH_CONF_Exported_Variables
+  * @{
+  */
+/**
+  * @}
+  */
+
+/** @defgroup USBH_CONF_Exported_FunctionsPrototype
+  * @{
+  */
+/**
+  * @}
+  */
+
+
+#endif //__USBH_CONF__H__
+
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usbh_usr.c
@@ -1,0 +1,298 @@
+/**
+  ******************************************************************************
+  * @file    usbh_usr.c
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   USB Host User Functions
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_usr.h"
+#include "usbh_msc_core.h"
+#include "usbh_msc_scsi.h"
+#include "usbh_msc_bot.h"
+
+
+
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+extern USB_OTG_CORE_HANDLE            USB_OTG_Core;
+extern USBH_HOST                      USB_Host;
+
+/*  Points to the DEVICE_PROP structure of current device */
+/*  The purpose of this register is to speed up the execution */
+
+USBH_Usr_cb_TypeDef USBH_USR_cb =
+  {
+    USBH_USR_Init,
+    USBH_USR_DeInit,
+    USBH_USR_DeviceAttached,
+    USBH_USR_ResetDevice,
+    USBH_USR_DeviceDisconnected,
+    USBH_USR_OverCurrentDetected,
+    USBH_USR_DeviceSpeedDetected,
+    USBH_USR_Device_DescAvailable,
+    USBH_USR_DeviceAddressAssigned,
+    USBH_USR_Configuration_DescAvailable,
+    USBH_USR_Manufacturer_String,
+    USBH_USR_Product_String,
+    USBH_USR_SerialNum_String,
+    USBH_USR_EnumerationDone,
+    USBH_USR_UserInput,
+    USBH_USR_MSC_Application,
+    USBH_USR_DeviceNotSupported,
+    USBH_USR_UnrecoveredError
+  };
+
+
+uint32_t __IO USB_Host_Application_Ready;
+
+/*--------------- LCD Messages ---------------*/
+const uint8_t MSG_HOST_INIT[]        = "[USB] Host Library Initialized";
+const uint8_t MSG_DEV_ATTACHED[]     = "[USB] Device Attached ";
+const uint8_t MSG_DEV_DISCONNECTED[] = "[USB] Device Disconnected";
+const uint8_t MSG_DEV_ENUMERATED[]   = "[USB] Enumeration completed ";
+const uint8_t MSG_DEV_HIGHSPEED[]    = "[USB] High speed device detected";
+const uint8_t MSG_DEV_FULLSPEED[]    = "[USB] Full speed device detected";
+const uint8_t MSG_DEV_LOWSPEED[]     = "[USB] Low speed device detected";
+const uint8_t MSG_DEV_ERROR[]        = "[USB] Device fault ";
+
+const uint8_t MSG_MSC_CLASS[]      = "[USB] Mass storage device connected";
+const uint8_t MSG_HID_CLASS[]      = "[USB] HID device connected";
+const uint8_t MSG_DISK_SIZE[]      = "[USB] Size of the disk in MBytes: ";
+const uint8_t MSG_LUN[]            = "[USB] LUN Available in the device:";
+const uint8_t MSG_ROOT_CONT[]      = "[USB] Exploring disk flash ...";
+const uint8_t MSG_WR_PROTECT[]      = "[USB] The disk is write protected";
+const uint8_t MSG_UNREC_ERROR[]     = "[USB] UNRECOVERED ERROR STATE";
+
+
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  Add the host lib initialization message to the console
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_Init(void)
+{
+  USB_Host_Application_Ready = 0;
+}
+
+/**
+  * @brief  Add the device attachement message to the console
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_DeviceAttached(void)
+{
+}
+
+
+/**
+  * @brief  Add the unrecovered error message to the console
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_UnrecoveredError (void)
+{
+}
+
+
+/**
+  * @brief Add the device disconnection message to the console and free 
+  *        USB associated resources
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_DeviceDisconnected (void)
+{
+  USB_Host_Application_Ready = 0;
+//  f_mount(0, NULL);
+}
+/**
+  * @brief  callback of the device reset event
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_ResetDevice(void)
+{
+}
+
+
+/**
+  * @brief  Add the device speed message to the console
+  * @param  Device speed
+  * @retval None
+  */
+void USBH_USR_DeviceSpeedDetected(uint8_t DeviceSpeed)
+{
+}
+
+/**
+  * @brief  Add the USB device vendor and MFC Ids to the console
+  * @param  device descriptor
+  * @retval None
+  */
+void USBH_USR_Device_DescAvailable(void *DeviceDesc)
+{
+}
+
+/**
+  * @brief  Device addressed event callbacak
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_DeviceAddressAssigned(void)
+{
+}
+
+/**
+  * @brief  Add the device class description to the console
+  * @param  Configuration descriptor
+  * @retval None
+  */
+void USBH_USR_Configuration_DescAvailable(USBH_CfgDesc_TypeDef * cfgDesc,
+    USBH_InterfaceDesc_TypeDef *itfDesc,
+    USBH_EpDesc_TypeDef *epDesc)
+{
+}
+
+/**
+  * @brief  Add the MFC String to the console
+  * @param  Manufacturer String
+  * @retval None
+  */
+void USBH_USR_Manufacturer_String(void *ManufacturerString)
+{
+}
+
+/**
+  * @brief  Add the Product String to the console
+  * @param  Product String
+  * @retval None
+  */
+void USBH_USR_Product_String(void *ProductString)
+{
+}
+
+/**
+  * @brief  Add the Srial Number String to the console
+  * @param  SerialNum_String
+  * @retval None
+  */
+void USBH_USR_SerialNum_String(void *SerialNumString)
+{
+}
+
+
+
+/**
+  * @brief  Enumeration complete event callback
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_EnumerationDone(void)
+{
+}
+
+/**
+  * @brief  Device is not supported callback
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_DeviceNotSupported(void)
+{
+}
+
+/**
+  * @brief  User Action for application state entry callback
+  * @param  None
+  * @retval USBH_USR_Status : User response for key button
+  */
+USBH_USR_Status USBH_USR_UserInput(void)
+{
+  return USBH_USR_RESP_OK;
+}
+
+/**
+  * @brief  Over Current Detected on VBUS
+  * @param  None
+  * @retval Staus
+  */
+void USBH_USR_OverCurrentDetected (void)
+{
+}
+
+
+/**
+  * @brief  Mass storage application main handler
+  * @param  None
+  * @retval Staus
+  */
+int USBH_USR_MSC_Application(void)
+{
+  char temp[40];
+
+  if(USB_Host_Application_Ready == 0)
+  {
+    /* Initializes the File System*/
+    //if ( f_mount( 0, &USBH_fatfs ) != FR_OK )
+    if(1)
+    {
+      /* efs initialisation fails*/
+      USB_Host_Application_Ready = 1;
+      return -1;
+    }
+    sprintf (temp, "[FS] USB Disk capacity:%d MB", (int)((USBH_MSC_Param.MSCapacity * \
+      USBH_MSC_Param.MSPageLength) / 1024 / 1024));
+
+    USB_Host_Application_Ready = 1;
+  }
+  return(0);
+}
+/**
+  * @brief  De-init User state and associated variables
+  * @param  None
+  * @retval None
+  */
+void USBH_USR_DeInit(void)
+{
+  USB_Host_Application_Ready = 0;
+}
+
+/**
+  * @brief  Handle Modules Background processes in the main task
+  * @param  None
+  * @retval None
+*/
+void USBH_USR_BackgroundProcess (void)
+{
+  if((USB_Host_Application_Ready == 0) || (HCD_IsDeviceConnected(&USB_OTG_Core) == 0))
+  {
+    USBH_Process(&USB_OTG_Core, &USB_Host);   
+  }
+}
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/stm/usb_user/usbh_usr.h
@@ -1,0 +1,77 @@
+/**
+  ******************************************************************************
+  * @file    usbh_usr.h
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    11-November-2013
+  * @brief   Header for usbh_usr module
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USH_USR_H__
+#define __USH_USR_H__
+
+/* Includes ------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include "usbh_msc_core.h"
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/* State Machine for the USBH_USR_ApplicationState */
+#define USH_USR_FS_INIT       0
+#define USH_USR_FS_READLIST   1
+#define USH_USR_FS_WRITEFILE  2
+#define USH_USR_FS_DRAW       3
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported variables --------------------------------------------------------*/
+extern  USBH_Usr_cb_TypeDef USBH_USR_cb;
+extern  uint8_t USBH_USR_ApplicationState;
+extern  __IO uint32_t USB_Host_Application_Ready;
+/* Exported functions ------------------------------------------------------- */
+void USBH_USR_ApplicationSelected(void);
+void USBH_USR_Init(void);
+void USBH_USR_DeInit(void);
+void USBH_USR_DeviceAttached(void);
+void USBH_USR_ResetDevice(void);
+void USBH_USR_DeviceDisconnected (void);
+void USBH_USR_OverCurrentDetected (void);
+void USBH_USR_DeviceSpeedDetected(uint8_t DeviceSpeed);
+void USBH_USR_Device_DescAvailable(void *);
+void USBH_USR_DeviceAddressAssigned(void);
+void USBH_USR_Configuration_DescAvailable(USBH_CfgDesc_TypeDef * cfgDesc,
+    USBH_InterfaceDesc_TypeDef *itfDesc,
+    USBH_EpDesc_TypeDef *epDesc);
+void USBH_USR_Manufacturer_String(void *);
+void USBH_USR_Product_String(void *);
+void USBH_USR_SerialNum_String(void *);
+void USBH_USR_EnumerationDone(void);
+USBH_USR_Status USBH_USR_UserInput(void);
+void USBH_USR_DeInit(void);
+void USBH_USR_DeviceNotSupported(void);
+void USBH_USR_UnrecoveredError(void);
+int USBH_USR_MSC_Application(void);
+void USBH_USR_BackgroundProcess (void);
+
+#endif /*__USH_USR_H__*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null
+++ b/demos/stm32f429_disco/syscalls.c
@@ -1,0 +1,131 @@
+
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <stdio.h>
+#include <signal.h>
+#include <time.h>
+
+#include <lcd_log.h>
+
+int _getpid(void)
+{
+    return 1;
+}
+
+int _kill(int pid, int sig)
+{
+    errno = EINVAL;
+    return -1;
+}
+
+void _exit (int status)
+{
+    _kill(status, -1);
+    while (1) {}                /* Make sure we hang here */
+}
+
+int _write(int file, char *ptr, int len)
+{
+    int todo;
+
+    for (todo = 0; todo < len; todo++)
+    {
+        __io_putchar( *ptr++ );
+    }
+
+    /* Implement your write code here, this is used by puts and printf for example */
+    return len;
+}
+
+caddr_t _sbrk(int incr)
+{
+    extern char __heap_end asm("__heap_end");
+    static char *heap_end;
+    char *prev_heap_end;
+
+    if (heap_end == 0)
+        heap_end = &__heap_end;
+
+    prev_heap_end = heap_end;
+    if ((unsigned int)(heap_end + incr) > (0x20000000 + 0x20000))
+    {
+        abort();
+        errno = ENOMEM;
+        return (caddr_t) -1;
+    }
+
+    heap_end += incr;
+
+    return (caddr_t) prev_heap_end;
+}
+
+int _close(int file)
+{
+    return -1;
+}
+
+
+int _fstat(int file, struct stat *st)
+{
+    st->st_mode = S_IFCHR;
+    return 0;
+}
+
+int _isatty(int file)
+{
+    return 1;
+}
+
+int _lseek(int file, int ptr, int dir)
+{
+    return 0;
+}
+
+int _read(int file, char *ptr, int len)
+{
+    return 0;
+}
+
+int _open(char *path, int flags, ...)
+{
+    /* Pretend like we always fail */
+    return -1;
+}
+
+int _wait(int *status)
+{
+    errno = ECHILD;
+    return -1;
+}
+
+int _unlink(char *name)
+{
+    errno = ENOENT;
+    return -1;
+}
+
+
+int _stat(char *file, struct stat *st)
+{
+    st->st_mode = S_IFCHR;
+    return 0;
+}
+
+int _link(char *old, char *new)
+{
+    errno = EMLINK;
+    return -1;
+}
+
+int _fork(void)
+{
+    errno = EAGAIN;
+    return -1;
+}
+
+int _execve(char *name, char **argv, char **env)
+{
+    errno = ENOMEM;
+    return -1;
+}