--- a/master/master.h	Thu Apr 09 14:56:23 2009 +0000
+++ b/master/master.h	Thu Apr 09 18:21:18 2009 +0000
@@ -117,6 +117,9 @@
 
     struct list_head configs; /**< List of slave configurations. */
     
+    u64 app_time; /**< Time of the last ecrt_master_sync() call. */
+    ec_datagram_t ref_sync_datagram; /**< Datagram used for synchronizing the
+                                       reference clock to the master clock. */
     ec_datagram_t sync_datagram; /**< Datagram used for DC drift
                                    compensation. */