diff -r 000000000000 -r bde4ae8d615e os/kernelhwsrv/userlibandfileserver/fileserver/smassstorage/inc/massstorageutil.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/kernelhwsrv/userlibandfileserver/fileserver/smassstorage/inc/massstorageutil.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,36 @@
+// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "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:
+// Utility functions for the Mass Storage file system.
+// 
+//
+
+/**
+ @file
+ @internalTechnology
+ 
+ Indicates if a number passed in is a power of two
+ 
+ @param aNum number to be tested
+ @return Flag to indicate the result of the test
+*/
+GLREF_C TBool IsPowerOfTwo(TInt aNum);
+
+/**
+Calculates the log2 of a number
+
+@param aNum Number to calulate the log two of
+@return The log two of the number passed in
+*/
+GLREF_C TInt Log2(TInt aNum);
+