--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/usbman/extensionplugin/public/MUsbManExtensionPluginObserver.h	Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,61 @@
+/*
+* Copyright (c) 2005-2009 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:
+* Interface presented by Usbman down to the concrete Usbman Extension Plugins.
+*
+*/
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+
+#ifndef USBMANEXTENSIONPLUGINOBSERVER_H
+#define USBMANEXTENSIONPLUGINOBSERVER_H
+
+#include <e32base.h>
+#include <d32usbc.h>
+
+class MUsbDeviceNotify;
+
+class MUsbmanExtensionPluginObserver
+	{
+
+public:
+	/**
+	Called by the plugin to get a RDevUsbcClient handle from its owner
+	@return RDevUsbcClient handle
+	*/
+	IMPORT_C RDevUsbcClient& DevUsbcClient();
+
+	/**
+	Called by the plugin to register for device/service state changes from its owner
+	@param aObserver The observer to register for state changes
+	*/
+	IMPORT_C void RegisterStateObserverL(MUsbDeviceNotify& aObserver);
+
+private:
+	/**
+	@see DevUsbcClient.
+	*/
+	virtual RDevUsbcClient& MuepoDoDevUsbcClient() = 0;
+
+	/**
+	@see RegisterStateObserverL.
+	*/
+	virtual void MuepoDoRegisterStateObserverL(MUsbDeviceNotify& aObserver) = 0;
+	};
+
+#endif // USBMANEXTENSIONPLUGINOBSERVER_H