--- a/master/rtdm.h	Tue Feb 12 16:37:11 2013 +0100
+++ b/master/rtdm.h	Tue Feb 12 17:15:09 2013 +0100
@@ -24,6 +24,10 @@
  *
  ****************************************************************************/
 
+/** \file
+ * RTDM interface.
+ */
+
 #ifndef __EC_RTDM_H__
 #define __EC_RTDM_H__