--- /dev/null
+/**
+ ******************************************************************************
+ * @file usbd_audio_out_if.h
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 22-July-2011
+ * @brief header file for the usbd_audio_out_if.c file.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+
+#ifndef __USB_AUDIO_OUT_IF_H_
+#define __USB_AUDIO_OUT_IF_H_
+
+#ifdef STM32F2XX
+ #include "stm322xg_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 2011 STMicroelectronics *****END OF FILE****/