diff -r 1a297fa72b1e -r f6533aee8b2b usbclasses/usbphoneasmodem/classcontroller/inc/usbmscfileclasscontroller_crkeys.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbclasses/usbphoneasmodem/classcontroller/inc/usbmscfileclasscontroller_crkeys.h	Tue Apr 27 17:41:29 2010 +0300
@@ -0,0 +1,42 @@
+// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description: Adheres to the UsbMan USB Class API and talks to mass storage file system
+// 
+// 
+#ifndef USBMSCFILECLASSCONTROLLER_CRKEYS_H
+#define USBMSCFILECLASSCONTROLLER_CRKEYS_H
+
+// CONSTANTS
+const TUid KCRUidUsbPhoneAsModemMscFileClassController = { 0x2000FDA8 };
+
+/*
+the least significant four bits is used for columns(unit file attributes: unit number, full name), 
+the remains bit is used for rows(which unit file).
+
+for example, if two units is used, the following can be added for the second unit keys.
+
+const TUint32 KCRIdMscFileLogicalUnitNumber2 = 0x00000010;
+const TUint32 KCRIdMscFileImageFullName2     = 0x00000011;
+
+refer to central repository how-to document section 5, Structured Data in the Central Repository
+
+*/
+const TUint32 KCRIdMscFileLogicalUnitNumber1 	= 0x00000000;
+const TUint32 KCRIdMscFileImageFullName1     	= 0x00000001;
+
+const TUint32 KCRMscFileLogicalUnitNumberColumn = 0x00000000;
+const TUint32 KCRMscFileImageFullNameColumn 	= 0x00000001;
+
+const TUint32 KCRMscFileColumnMask 				= 0x0000000F;
+const TUint32 KCRMscFileRowMask 				= 0xFFFFFFF0;
+#endif      // USBMSCFILECLASSCONTROLLER_CRKEYS_H