receive_transfer, (void *)sdi, 100);
if ((ret = libusb_submit_transfer(devc->out_transfer) != 0)) {
sr_err("Failed to request packet: %s.", libusb_error_name(ret));
receive_transfer, (void *)sdi, 100);
if ((ret = libusb_submit_transfer(devc->out_transfer) != 0)) {
sr_err("Failed to request packet: %s.", libusb_error_name(ret));