devc->last_req = req;
devc->last_req_pending = TRUE;
- if (serial_write(serial, buf, len) == -1) {
- sr_err("Unable to send request: %d %s.",
- errno, strerror(errno));
+ if (serial_write_blocking(serial, buf, len, 0) < 0) {
+ sr_err("Unable to send request.");
devc->last_req_pending = FALSE;
return SR_ERR;
}