/* Register the periodic data reception callback. */
ret = sr_modbus_source_add(sdi->session, modbus, G_IO_IN, 10,
rdtech_dps_receive_data, (void *)sdi);
/* Register the periodic data reception callback. */
ret = sr_modbus_source_add(sdi->session, modbus, G_IO_IN, 10,
rdtech_dps_receive_data, (void *)sdi);