diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/hwrmhapticsactuatorobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epoc32/include/hwrmhapticsactuatorobserver.h	Tue Mar 16 16:12:26 2010 +0000
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2008 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 "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  This file contains the header of the 
+*                MHWRMHapticsActuatorObserver class.
+*
+*/
+
+
+#ifndef M_HWRMHAPTICSACTUATOROBSERVER_H
+#define M_HWRMHAPTICSACTUATOROBSERVER_H
+
+#include <hwrmlogicalactuators.h>
+
+/**
+* MHWRMHapticsActuatorObserver observer class.
+*
+* A client should derive from this abstract class to receive
+* logical actuator event notifications.
+*
+* @since S60 5.1
+*/
+class MHWRMHapticsActuatorObserver
+    {
+public:
+ 
+    /**
+    * @enum THWRMActuatorEvents
+    * 
+    * Events that can happen to logical actuators.
+    */    
+    enum THWRMActuatorEvents
+        {
+        /**
+        * This event occurs, when an actuator plugin of a previously
+        * unsupported logical actuator type is installed to the device.
+        *
+        * In practice, this event may occur when the user of the device
+        * starts using an external vibra device, which requires the 
+        * installation of an actuator plugin currently not present in
+        * the device.
+        */
+        EHWRMActuatorAttached,
+        
+        /**
+        * This event occurs, when an actuator plugin of a previously
+        * supported logical actuator type is uninstalled from the device.
+        *
+        * In practice, this event may occur when the user of the device
+        * chooses to stop using an external vibra device, and uninstalls
+        * a previously installed actuator plugin.
+        */
+        EHWRMActuatorDetached,
+        
+        /**
+        * Actuator is currently enabled and it is ready to be used
+        * as normal.
+        *
+        * Enabled/disabled state of an actuator is notified, when the
+        * actuator is opened by a client and when the state changes
+        * on runtime.
+        */
+        EHWRMActuatorEnabled,
+        
+        /**
+        * Actuator is currently disabled and it is not able to handle
+        * haptics commands. This state of a logical actuator is in most
+        * cases relevant only for actuator plugins handling external
+        * vibra devices; E.g. connection to the external device may be
+        * lost, in which case the plugin is not able to execute incoming
+        * commands.
+        */
+        EHWRMActuatorDisabled, 
+        
+        /**
+        * For sanity checks only e.g. when enumerating actuator events.
+        */ 
+        EHWRMEventLast    
+        };
+        
+    /**
+    * Called when the state of an actuator changes. 
+    * 
+    * @param aEvent Indicates the type of event.
+    * @param aActuator Logical actuator to which the event happened.
+    *
+    * @since S60 5.1
+    */
+    virtual void ActuatorEventL( THWRMActuatorEvents aEvent, 
+                                 THWRMLogicalActuators aActuator ) = 0;
+    };
+
+#endif // M_HWRMHAPTICSACTUATOROBSERVER_H