--- a/usbengines/usbotgwatcher/inc/cusbidpinobserver.h	Tue Feb 02 00:52:37 2010 +0200
+++ b/usbengines/usbotgwatcher/inc/cusbidpinobserver.h	Fri Feb 19 23:50:33 2010 +0200
@@ -83,13 +83,13 @@
      * Add observer
      * @param aObserver Observer
      */
-    void SubscribeL(MUsbIdPinObserver* aObserver);
+    void SubscribeL(MUsbIdPinObserver& aObserver);
 
     /**
      * Remove observer
      * @param aObserver Observer
      */
-    void UnsubscribeL(MUsbIdPinObserver* aObserver);
+    void UnsubscribeL(MUsbIdPinObserver& aObserver);
 
 private: