-void sr_session_run(void);
-void sr_session_halt(void);
-void sr_session_stop(void);
-void sr_session_bus(struct sr_device *device,
- struct sr_datafeed_packet *packet);
+int sr_session_run(void);
+int sr_session_halt(void);
+int sr_session_stop(void);
+int sr_session_bus(struct sr_device *device, struct sr_datafeed_packet *packet);