diff -r 2d65c2f76d7b -r 947f0dc9f7a8 kernel/eka/include/drivers/usbcshared.h
--- a/kernel/eka/include/drivers/usbcshared.h	Tue Feb 02 01:24:03 2010 +0200
+++ b/kernel/eka/include/drivers/usbcshared.h	Fri Apr 16 16:24:37 2010 +0300
@@ -1598,6 +1598,8 @@
 	NTimer iReconnectTimer;									// implements USB re-enumeration delay
 	NTimer iCableStatusTimer;								// implements USB cable status detection delay
 	DUsbcPowerHandler* iPowerHandler;						// pointer to USB power handler object
+	TSpinLock iUsbLock;                                     // implement SMP for USB PDD and LDD
+	NFastMutex iMutex;										// To pretect interface set with NFastMutex
 
 protected:
 	TDfc iPowerUpDfc;										// queued by power handler upon power-up