*\r
* \ingroup Group_PipeControlReq\r
*\r
- * \param BufferPtr Pointer to the start of the data buffer if the request has a data stage, or\r
- * NULL if the request transfers no data to or from the device.\r
+ * \param[in] BufferPtr Pointer to the start of the data buffer if the request has a data stage, or\r
+ * NULL if the request transfers no data to or from the device.\r
*\r
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.\r
*/\r