Hi Sara,

Thank you for your reply.

quoted text
> The xHCI host controller will write a little endian value into the
> 32-bit flags portion of the event.  But I wonder if the math is correct
> on a big endian system.  When xhci->event_ring->cycle_state is first
> written, does it need to be wrapped in a cpu_to_le() call?  Also, does
> the TRB_CYCLE need to be wrapped?

I found that the endian change is needed in inc_enq().
But not handle the event correctly.
(xhci->event_ring->dequeue->event_cmd is still zero)

I will continue to try.

Thanks,
Nishikawa

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html