diff --git a/include/linux/gigaset_dev.h b/include/linux/gigaset_dev.h
new file mode 100644
index 0000000..70ad09c
--- /dev/null
+++ b/include/linux/gigaset_dev.h
@@ -0,0 +1,32 @@
+/*
+ * interface to user space for the gigaset driver
+ *
+ * Copyright (c) 2004 by Hansjoerg Lipp <hjlipp@web.de>
+ *
+ * =====================================================================
+ *    This program is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU General Public License as
+ *    published by the Free Software Foundation; either version 2 of
+ *    the License, or (at your option) any later version.
+ * =====================================================================
+ * Version: $Id: gigaset_dev.h,v 1.4.4.4 2005/11/21 22:28:09 hjlipp Exp $
+ * =====================================================================
+ */
+
+#ifndef GIGASET_INTERFACE_H
+#define GIGASET_INTERFACE_H
+
+#include <linux/ioctl.h>
+
+#define GIGASET_IOCTL 0x47
+
+#define GIGVER_DRIVER 0
+#define GIGVER_COMPAT 1
+#define GIGVER_FWBASE 2
+
+#define GIGASET_REDIR    _IOWR (GIGASET_IOCTL, 0, int)
+#define GIGASET_CONFIG   _IOWR (GIGASET_IOCTL, 1, int)
+#define GIGASET_BRKCHARS _IOW  (GIGASET_IOCTL, 2, unsigned char[6]) //FIXME [6] okay?
+#define GIGASET_VERSION  _IOWR (GIGASET_IOCTL, 3, unsigned[4])
+
+#endif