Wind U100 webcam is a Microdia ID 0c45:62c0 that worked out of the box before 2.6.31. dmesg has some of: hub 1-0:1.0: cannot reset port 6 (err = -108) hub 1-0:1.0: cannot reset port 6 (err = -108) hub 1-0:1.0: cannot reset port 6 (err = -108) hub 1-0:1.0: cannot reset port 6 (err = -108) hub 1-0:1.0: cannot reset port 6 (err = -108) hub 1-0:1.0: Cannot enable port 6. Maybe the USB cable is bad? git bisected to 04a37e0f32f9882430bc1899899d2ed91b8aaf5b works when reverted. thanks
Problem still present in linus' HEAD
Created attachment 23614 [details] Dirty fix it's definitely the powermanagement that beaks the whole thing. This patch make my webcam work again
This has been discussed in the linux-usb mailing list. See http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/10977 for an explanation. It seems to be an EHCI driver (and/or hardware) bug. A temporary hackish fix is available in the e-mail thread, could you please try it ?
Webcam not working with the patch. The usb bus seem to be ok though
Closing as obsolete, if this is incorrect please update the bug with the more recent kernel that has been tested