diff -r 741dcdf88ba9 -r c4d65d91ad0c kernel/eka/include/drivers/usbcshared.h
--- a/kernel/eka/include/drivers/usbcshared.h	Mon Mar 08 11:57:08 2010 +0000
+++ b/kernel/eka/include/drivers/usbcshared.h	Sun Mar 14 13:15:32 2010 +0000
@@ -1598,6 +1598,7 @@
 	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
 
 protected:
 	TDfc iPowerUpDfc;										// queued by power handler upon power-up