stm32duino
diff --git a/‎cores/arduino/stm32/usb/cdc_msc/usbd_cdc_msc.cpp
+508 b/‎cores/arduino/stm32/usb/cdc_msc/usbd_cdc_msc.cpp
+508
diff --git a/‎cores/arduino/stm32/usb/cdc_msc/usbd_cdc_msc.h
+39 b/‎cores/arduino/stm32/usb/cdc_msc/usbd_cdc_msc.h
+39
@@ -0,0 +1,39 @@
+/**
+  ******************************************************************************
+  * @file    usbd_cdc_msc_core.h
+  * @author  MCD Application Team
+  * @version V1.2.1
+  * @date    17-March-2018
+  * @brief   header file for the usbd_cdc_msc_core.c file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2015 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under Ultimate Liberty license
+  * SLA0044, 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/SLA0044>
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+
+#ifndef __USB_CDC_MSC_CORE_H_
+#define __USB_CDC_MSC_CORE_H_
+
+#include "../cdc/usbd_cdc.h"
+#include "usbd_msc.h"
+#include "usbd_ioreq.h"
+
+#define CDC_ACM_INTERFACE   0x0
+#define CDC_COM_INTERFACE   0x1
+#define MSC_INTERFACE       0x2
+
+#define USB_CDC_MSC_CONFIG_DESC_SIZ  (USB_CDC_CONFIG_DESC_SIZ - 9 + USB_MSC_CONFIG_DESC_SIZ)
+
+#endif  /* __USB_CDC_MSC_CORE_H_ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/