+ @param DeviceEndpoint The destination USB device endpoint to which the\r
+ device request is being sent. DeviceEndpoint must\r
+ be between 0x01 and 0x0F or between 0x81 and 0x8F,\r
+ otherwise EFI_INVALID_PARAMETER is returned. If\r
+ the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER\r
+ is returned. The MSB of this parameter indicates\r
+ the endpoint direction. The number "1" stands for\r
+ an IN endpoint, and "0" stands for an OUT endpoint.\r