hook IRQs to HCD framework (bus glue)
irqreturn_t usb_hcd_irq (
|int irq, |
| ||void * __hcd|
the IRQ being raised
pointer to the HCD whose IRQ is being signaled
If the controller isn't HALTed, calls the driver's irq handler.
Checks whether the controller is now dead.
IRQ_HANDLED if the IRQ was handled.