diff -r e62b492aab51 -r c95cd717b852 master/master.h
--- a/master/master.h	Tue Jul 01 15:41:52 2008 +0000
+++ b/master/master.h	Wed Jul 02 08:14:47 2008 +0000
@@ -190,6 +190,8 @@
 // misc.
 void ec_master_attach_slave_configs(ec_master_t *);
 ec_slave_t *ec_master_find_slave(ec_master_t *, uint16_t, uint16_t);
+const ec_slave_t *ec_master_find_slave_const(const ec_master_t *, uint16_t,
+        uint16_t);
 void ec_master_output_stats(ec_master_t *);
 #ifdef EC_EOE
 void ec_master_clear_eoe_handlers(ec_master_t *);