diff -r 000000000000 -r 1e05558e2206 usbengines/usbwatcher/inc/cusbdevicelock.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbwatcher/inc/cusbdevicelock.h	Thu Dec 17 09:14:30 2009 +0200
@@ -0,0 +1,109 @@
+/*
+* Copyright (c) 2006-2009 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:  Header file for class CUsbDeviceLock.
+*
+*/
+
+
+#ifndef CUSBDEVICELOCK_H
+#define CUSBDEVICELOCK_H
+
+class CUsbWatcher;
+
+/**
+ *  Class for device lock notification
+ *
+ *  @lib euser.lib usbman.lib SysUtil.lib
+ *  @since Series 60 2.?
+ */
+NONSHARABLE_CLASS( CUsbDeviceLock ) : public CActive
+    {
+
+public:
+
+    static CUsbDeviceLock* NewL( CUsbWatcher& aOwner );
+
+    virtual ~CUsbDeviceLock();
+
+public:
+    /**
+     * Subscribes device lock change event.
+     *
+     * @since Series 60 3.0
+     */    
+    void Subscribe();
+    
+    /**
+     * Current state of device lock.
+     *
+     * @since Series 60 3.0
+     * @return When set (ETrue) device is locked. When unset (EFalse) device is unlocked.
+     */
+    TBool Locked();
+    
+public: // from base class CActive
+    
+    /**
+     * From CActive.
+     * This method is never called in this implementation.
+     *
+     * @since Series 60 3.0
+     */
+    TInt RunError( TInt /*aError*/ );
+
+    /**
+     * From CActive.
+     * This method is called when device lock state has changed. 
+     * New state is given to owner class.
+     *
+     * @since Series 60 3.0
+     */
+    void RunL();
+
+    /**
+     * From CActive.
+     * Will cancel outstanding request if called.
+     *
+     * @since Series 60 3.0
+     */
+    void DoCancel();
+      
+private:
+
+    /**
+     * C++ constructor.
+     */
+    CUsbDeviceLock( CUsbWatcher& aOwner );
+
+    CUsbDeviceLock();
+
+    void ConstructL();
+      
+
+private:
+    /**
+     * Handle to P&S key
+     */
+    RProperty  iProperty;
+    
+    /**
+     * Owner of this class
+     */
+    CUsbWatcher& iOwner;
+};
+
+#endif // CUSBDEVICELOCK_H
+
+// End of file
+