/**
  * @brief  CDC_Transmit_FS
  *         Data send over USB IN endpoint are sent over CDC interface
  *         through this function.
  *         @note
  *
  *
  * @param  Buf: Buffer of data to be send
  * @param  Len: Number of data to be send (in bytes)
  * @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL or USBD_BUSY
  */
uint8_t CDC_Transmit_FS(uint8_t* Buf, uint16_t Len)
{
  uint8_t result = USBD_OK;
  /* USER CODE BEGIN 8 */
  USBD_CDC_SetTxBuffer(hUsbDevice_0, UserTxBufferFS, Len);
  result = USBD_CDC_TransmitPacket(hUsbDevice_0);
  /* USER CODE END 8 */
  return result;
}