diff -r 000000000000 -r c9bc50fca66e usbmgmt/usbmgr/usbman/server/public/MUsbDeviceNotify.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/usbman/server/public/MUsbDeviceNotify.h	Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,63 @@
+/*
+* Copyright (c) 1997-2009 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:
+*
+*/
+
+/** @file
+ *
+ * The mixin used by the USB Device object to notify all of
+ * it's observers of any state changes that occur
+ *
+ * Copyright (c) 1997-2007 Symbian Ltd.  All rights reserved.
+ */
+
+#ifndef __MUSBDEVICENOTIFY_H__
+#define __MUSBDEVICENOTIFY_H__
+
+#include <usbstates.h>
+
+/**
+ * The MUsbDeviceNotify class
+ *
+ * The mixin used by the USB Device object to notify all of
+ * it's observers of any state changes that occur
+
+  @publishedPartner
+  @released
+ */
+class MUsbDeviceNotify
+	{
+public:
+	/**
+	 * Called when the USB service state has changed
+	 *
+	 * @param aLastError The last error code detected
+	 * @param aOldState The previous service state
+	 * @param aNewState The new service state
+	 */
+	virtual void UsbServiceStateChange(TInt aLastError, TUsbServiceState aOldState, TUsbServiceState aNewState) = 0;
+
+	/**
+	 * Called when the USB device state has changed
+	 *
+	 * @param aLastError The last error code detected
+	 * @param aOldState The previous device state
+	 * @param aNewState The new device state
+	 */
+	virtual void UsbDeviceStateChange(TInt aLastError, TUsbDeviceState aOldState, TUsbDeviceState aNewState) = 0;
+	};
+
+#endif
+