diff -r 9cfbb344adc0 -r ff1b018a9b09 master/slave.h
--- a/master/slave.h	Fri Oct 13 09:39:42 2006 +0000
+++ b/master/slave.h	Fri Oct 13 09:45:22 2006 +0000
@@ -334,6 +334,7 @@
                                  const ec_sii_sync_t *);
 
 int ec_slave_is_coupler(const ec_slave_t *);
+int ec_slave_has_subbus(const ec_slave_t *);
 
 /*****************************************************************************/