libusb_get_device_list(usb_ctx, &devlist);
for (i = 0; devlist[i]; i++) {
if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
- sr_err("Failed to get device descriptor: %d.", ret);
+ sr_err("Failed to get device descriptor: %s.",
+ libusb_error_name(ret));
continue;
}