--- a/devices/ecdev.h	Fri Apr 21 13:05:01 2006 +0000
+++ b/devices/ecdev.h	Mon Apr 24 10:10:02 2006 +0000
@@ -1,7 +1,5 @@
 /******************************************************************************
  *
- *  EtherCAT interface for EtherCAT device drivers.
- *
  *  $Id$
  *
  *  Copyright (C) 2006  Florian Pose, Ingenieurgemeinschaft IgH
@@ -23,6 +21,22 @@
  *
  *****************************************************************************/
 
+/**
+   \file
+   EtherCAT interface for EtherCAT device drivers.
+*/
+
+/**
+   \defgroup DeviceInterface EtherCAT device interface
+   Master interface for EtherCAT-capable network device drivers.
+   Through the EtherCAT device interface, EtherCAT-capable network device
+   drivers are able to connect their device(s) to the master, pass received
+   frames and notify the master about status changes. The master on his part,
+   can send his frames through connected devices.
+*/
+
+/*****************************************************************************/
+
 #ifndef _ETHERCAT_DEVICE_H_
 #define _ETHERCAT_DEVICE_H_