lib/usb/usb_request.c

82     uint16_t ret_length;
85     usb_error_t err = usb_do_request_read(&req, &ret_length, &ret_data);
91     if (ret_length != 1) {
117         uint16_t lang, void **ret_desc, uint16_t *ret_length)
183     if (ret_length) {
184         *ret_length = ret_data_length;
260     uint16_t ret_length;
262     err = usb_do_request_read(&req, &ret_length, &ret_val);
268     if (ret_length != 1) {
311     uint16_t ret_length;
313     usb_error_t err = usb_do_request_read(&req, &ret_length, &ret_data);
319     if (ret_length != 2) {
564     uint16_t ret_length;
571     usb_error_t err = usb_do_request_read(&req, &ret_length, &ret_data);
578     if (ret_length != 2) {
646         uint16_t *ret_length, void **ret_data)
659     *ret_length = length;
666         *ret_length = 0;
671     USB_DEBUG_IDC("libusb: usb_do_request_read() got data (len=%i)\n", *ret_length);