diff -r cceb9aacf4a6 -r 3417bbc4ad2f lib/domain.c
--- a/lib/domain.c	Thu Mar 03 09:05:40 2011 +0100
+++ b/lib/domain.c	Wed Mar 16 22:12:23 2011 +0100
@@ -52,6 +52,13 @@
     // nothing to do
 }
 
+
+/*****************************************************************************/
+unsigned int ecrt_domain_index(ec_domain_t *domain)
+{
+    return domain->index;
+}
+
 /*****************************************************************************/
 
 int ecrt_domain_reg_pdo_entry_list(ec_domain_t *domain,