Messages in this thread | | | Date | Thu, 15 Mar 2012 22:39:36 +0800 | From | Alex Shi <> | Subject | Re: [PATCH] usb/core: skip unnecessary line IRQ request for USB3 |
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> > This is not a good idea. What happens if some USB-3 controller > (perhaps a non-xHCI USB-3 controller) doesn't use MSI? >
current usb3 driver just xhci. but sure it need to modify if non-xhci usb pops up.
> The right way to avoid registering a legacy interrupt handler is to > call usb_add_hcd() with irqnum equal to 0.
a good trick! will try it tomorrow.
> > Alan Stern >
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