new file mode 100644
--- /dev/null
+++ b/packages/io/common/current/include/io_diag.h
@@ -0,0 +1,54 @@
+#ifndef CYGONCE_IO_COMMON_IO_DIAG_H
+#define CYGONCE_IO_COMMON_IO_DIAG_H
+//=============================================================================
+//
+//	io_diag.h
+//
+//	Redirect diag output to the configured console device
+//
+//============================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998, 1999 Cygnus Solutions.  
+// All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): 	jskov
+// Contributors:jskov
+// Date:	1999-04-09
+// Purpose:     Kernel diagnostic output
+// Description:	Implementations of kernel diagnostic routines.
+//
+//####DESCRIPTIONEND####
+//
+//=============================================================================
+
+#include <cyg/infra/cyg_type.h>
+
+externC void diag_device_init(void);
+externC void diag_device_write_char(char c);
+externC void diag_device_start_sync(void);
+externC void diag_device_end_sync(void);
+
+#endif // CYGONCE_IO_COMMON_IO_DIAG_H
+//-----------------------------------------------------------------------------
+// EOF io_diag.h