new file mode 100644
--- /dev/null
+++ b/packages/io/common/current/include/config_keys.h
@@ -0,0 +1,60 @@
+#ifndef CYGONCE_CONFIG_KEYS_H
+#define CYGONCE_CONFIG_KEYS_H
+// ====================================================================
+//
+//      config_keys.h
+//
+//      Device I/O "Keys" for get/put config functions
+//
+// ====================================================================
+//####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):   gthomas
+// Contributors:        gthomas
+// Date:        1999-02-04
+// Purpose:     Repository for all get/put config "keys"
+// Description:
+//
+//####DESCRIPTIONEND####
+//
+// ====================================================================
+
+// This file contains all of the 'key' values used by all I/O components.
+// It is placed in this single repository to make it easy to reduce conflicts.
+
+// Get/Set configuration 'key' values for low-level serial I/O
+#define CYG_IO_GET_CONFIG_SERIAL_INFO            0x0101
+#define CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN    0x0102
+#define CYG_IO_GET_CONFIG_SERIAL_OUTPUT_FLUSH    0x0103
+#define CYG_IO_GET_CONFIG_SERIAL_INPUT_FLUSH     0x0104
+#define CYG_IO_GET_CONFIG_SERIAL_ABORT           0x0105
+#define CYG_IO_SET_CONFIG_SERIAL_INFO            0x0181
+
+// Get/Set configuration 'key' values for tty-like driver
+#define CYG_IO_GET_CONFIG_TTY_INFO       0x0201  // Get channel configuration
+#define CYG_IO_SET_CONFIG_TTY_INFO       0x0281  // Set channel configuration
+
+#endif  /* CYGONCE_CONFIG_KEYS_H */
+/* EOF config_keys.h */