diff -r 07fd94c5119d -r 72e7507b3f1b master/datagram.c
--- a/master/datagram.c	Thu Sep 13 11:08:46 2007 +0000
+++ b/master/datagram.c	Wed Oct 03 08:58:01 2007 +0000
@@ -309,7 +309,7 @@
  */
 
 void ec_datagram_print_wc_error(
-        const ec_datagram_t *datagram
+        const ec_datagram_t *datagram /**< EtherCAT datagram */
         )
 {
     if (datagram->working_counter == 0)