From 965f7f2c80e30d7a66dcac7abaa9bdc371d9ea51 Mon Sep 17 00:00:00 2001
From: Samuel Sadok <samuel.sadok@bluewin.ch>
Date: Mon, 26 Feb 2018 14:53:52 -0800
Subject: [PATCH] release sem_usb_tx in usbd_cdc.c

---
 .../ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c     | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Firmware/Board/v3.3/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c b/Firmware/Board/v3.3/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c
index b2ca5f16..6ae33e8c 100644
--- a/Firmware/Board/v3.3/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c
+++ b/Firmware/Board/v3.3/Middlewares/ST/STM32_USB_Device_Library/Class/CDC/Src/usbd_cdc.c
@@ -62,7 +62,8 @@
 #include "usbd_cdc.h"
 #include "usbd_desc.h"
 #include "usbd_ctlreq.h"
-
+#include <cmsis_os.h>	
+#include <freertos_vars.h>	
 
 /** @addtogroup STM32_USB_DEVICE_LIBRARY
   * @{
@@ -669,7 +670,7 @@ static uint8_t  USBD_CDC_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum)
   {
     
     hcdc->TxState = 0;
-
+    osSemaphoreRelease(sem_usb_tx);
     return USBD_OK;
   }
   else