ER_IRQ_CLEAR      494 drivers/usb/host/xhci.h #define	ER_IRQ_ENABLE(p)	((ER_IRQ_CLEAR(p)) | 0x2)
ER_IRQ_CLEAR      495 drivers/usb/host/xhci.h #define	ER_IRQ_DISABLE(p)	((ER_IRQ_CLEAR(p)) & ~(0x2))