On 12:37 Sat 07 Mar 2009, Alan Stern wrote: > On Sat, 7 Mar 2009, Brandon Philips wrote: > > On 21:26 Fri 06 Mar 2009, Greg KH wrote: > > > On Fri, Mar 06, 2009 at 11:11:22AM -0800, Brandon Philips wrote: > > > > When an UVC device is open and a S4 is attempted the thaw hangs (see the > > > > stack below). I don't see what the UVC driver is doing wrong to cause > > > > this to happen though. > > > > > > I don't think this is a uvc driver issue, it looks like all you are > > > trying to do is a usb control message when things hang. > > > > Indeed. When I was poking at this I tried to supress the control message coming > > out of the uvcvideo driver after the suspend was issued to see what would > > happen and the control messages after the resume locked up instead. Eh. > > Have you tried suspending just the two devices plugged into that EHCI > controller instead of suspending the entire system? That would make it > a lot easier to carry out testing. I tried to reproduce with s2ram suspend, echo suspend > /sys/bus/usb/devices/.../power/level and /sys/power/pm_test levels but none of them reproduced it. So, at this point the only way I can reproduce this is with a full S4. Is there some other method I missed of testing? Thanks, Brandon -- 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
