Hi Hans, On Tuesday 12 August 2014 17:38:55 Hans Verkuil wrote: > On 08/12/2014 05:07 PM, Hans de Goede wrote: > > On 08/07/2014 04:49 PM, Udo van den Heuvel wrote: > >> On 2014-08-04 11:17, Laurent Pinchart wrote: > >>> (CC'ing Hans de Goede, the pwc maintainer, and the linux-media mailing > >>> list) > > > > Thanks for the bug report. I've been looking into this, and there > > seem to be 2 problems: > > > > 1: xhci_hcd 0000:02:00.0: ERROR: unexpected command completion code 0x11. > > > > This seems to be what is causing things to not work with a usb-3 port > > for you. Might be fixed by this commit: > > https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit/drivers > > /usb/host?h=usb-next&id=3213b151387df0b95f4eada104f68eb1c1409cb3 > > > > Can you please do "lspci -nn", and then copy and paste the output here, > > so that we can see what sort of xhci controller you've (and try to > > reproduce the problem). > > > > 2: The triggering of a WARN_ON in __vb2_queue_cancel() when called on > > streamoff. I've been looking at the code and I cannot figure out why this > > is triggering I'm afraid. > > You can ignore this one. > > The uvc driver is doing messy things with vb2 which causes this warning. > That said, it will not break things for you. It is just a warning that the > driver needs to be improved. I can certainly take the blame when my code needs to be improved, but in this case the webcam is supported by the pwc driver, not the uvc driver :-) -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
