201     data->ep_in->request.buffer = (rt_uint8_t*)&data->csw_response;  in _send_status()
202     data->ep_in->request.size = SIZEOF_CSW;      in _send_status()
203     data->ep_in->request.req_type = UIO_REQUEST_WRITE;  in _send_status()
204     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);  in _send_status()
239  * This function will handle inquiry command request.
269     data->ep_in->request.buffer = buf;  in _inquiry_cmd()
270     data->ep_in->request.size = data->cb_data_size;  in _inquiry_cmd()
271     data->ep_in->request.req_type = UIO_REQUEST_WRITE;  in _inquiry_cmd()
272     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);  in _inquiry_cmd()
279  * This function will handle sense request.
312     data->ep_in->request.buffer = (rt_uint8_t*)data->ep_in->buffer;  in _request_sense()
313     data->ep_in->request.size = data->cb_data_size;  in _request_sense()
314     data->ep_in->request.req_type = UIO_REQUEST_WRITE;  in _request_sense()
315     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);  in _request_sense()
322  * This function will handle mode_sense_6 request.
348     data->ep_in->request.buffer = buf;  in _mode_sense_6()
349     data->ep_in->request.size = data->cb_data_size;  in _mode_sense_6()
350     data->ep_in->request.req_type = UIO_REQUEST_WRITE;  in _mode_sense_6()
351     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);  in _mode_sense_6()
358  * This function will handle read_capacities request.
393     data->ep_in->request.buffer = buf;  in _read_capacities()
394     data->ep_in->request.size = data->cb_data_size;  in _read_capacities()
395     data->ep_in->request.req_type = UIO_REQUEST_WRITE;  in _read_capacities()
396     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);  in _read_capacities()
403  * This function will handle read_capacity request.
438     data->ep_in->request.buffer = buf;  in _read_capacity()
439     data->ep_in->request.size = data->cb_data_size;  in _read_capacity()
440     data->ep_in->request.req_type = UIO_REQUEST_WRITE;  in _read_capacity()
441     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);  in _read_capacity()
448  * This function will handle read_10 request.
478     data->ep_in->request.buffer = data->ep_in->buffer;  in _read_10()
479     data->ep_in->request.size = data->geometry.bytes_per_sector;      in _read_10()
480     data->ep_in->request.req_type = UIO_REQUEST_WRITE;      in _read_10()
481     rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);  in _read_10()
488  * This function will handle write_10 request.
516     data->ep_out->request.buffer = data->ep_out->buffer;  in _write_10()
517     data->ep_out->request.size = data->geometry.bytes_per_sector;      in _write_10()
518     data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;  in _write_10()
519     rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);  in _write_10()
526  * This function will handle verify_10 request.
577         if(data->ep_in->request.size != SIZEOF_CSW)  in _ep_in_handler()
585             data->ep_out->request.buffer = data->ep_out->buffer;  in _ep_in_handler()
586             data->ep_out->request.size = SIZEOF_CBW;  in _ep_in_handler()
587             data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;      in _ep_in_handler()
588             rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);              in _ep_in_handler()
599             data->csw_response.data_reside -= data->ep_in->request.size;  in _ep_in_handler()
602                 RT_DEBUG_LOG(RT_DEBUG_USB, ("data_reside %d, request %d\n",   in _ep_in_handler()
603                     data->csw_response.data_reside, data->ep_in->request.size));  in _ep_in_handler()
618         data->csw_response.data_reside -= data->ep_in->request.size;  in _ep_in_handler()
630             data->ep_in->request.buffer = data->ep_in->buffer;  in _ep_in_handler()
631             data->ep_in->request.size = data->geometry.bytes_per_sector;      in _ep_in_handler()
632             data->ep_in->request.req_type = UIO_REQUEST_WRITE;      in _ep_in_handler()
633             rt_usbd_io_request(func->device, data->ep_in, &data->ep_in->request);              in _ep_in_handler()
790  * This function will handle mass storage bulk out endpoint request.
793  * @param size request size.
859             data->ep_out->request.buffer = data->ep_out->buffer;  in _ep_out_handler()
860             data->ep_out->request.size = data->geometry.bytes_per_sector;      in _ep_out_handler()
861             data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;      in _ep_out_handler()
862             rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);  in _ep_out_handler()
893  * This function will handle mass storage interface request.
896  * @param setup the setup request.
939         rt_kprintf("unknown interface request\n");  in _interface_handler()
947 …his function will run mass storage function, it will be called on handle set configuration request.
994     /* prepare to read CBW request */  in _function_enable()
995     data->ep_out->request.buffer = data->ep_out->buffer;  in _function_enable()
996     data->ep_out->request.size = SIZEOF_CBW;      in _function_enable()
997     data->ep_out->request.req_type = UIO_REQUEST_READ_FULL;      in _function_enable()
998     rt_usbd_io_request(func->device, data->ep_out, &data->ep_out->request);  in _function_enable()
1004 …is function will stop mass storage function, it will be called on handle set configuration request.