diff -r e51cf2af3ff9 -r eb9185dfa8ac master/fsm_master.h
--- a/master/fsm_master.h	Mon Dec 14 13:11:36 2009 +0100
+++ b/master/fsm_master.h	Mon Dec 14 13:25:50 2009 +0100
@@ -133,7 +133,7 @@
 void ec_fsm_master_init(ec_fsm_master_t *, ec_master_t *, ec_datagram_t *);
 void ec_fsm_master_clear(ec_fsm_master_t *);
 
-void ec_fsm_master_exec(ec_fsm_master_t *);
+int ec_fsm_master_exec(ec_fsm_master_t *);
 int ec_fsm_master_idle(const ec_fsm_master_t *);
 
 /*****************************************************************************/