Comment 20 for bug 496266

I was able to figure out in which kernel the webcam works. The output of uname is:
Linux karmicx300 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux

The output of dmesg is:
[15502.412213] usb 2-5: device not accepting address 28, error -71
[15502.540142] usb 2-5: new high speed USB device using ehci_hcd and address 29
[15502.677889] usb 2-5: configuration #1 chosen from 1 choice
[15502.681182] uvcvideo: Found UVC 1.00 device <unnamed> (17ef:4807)
[15502.686327] input: UVC Camera (17ef:4807) as /devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/input/input34
[15860.579541] usb 2-5: USB disconnect, address 29
[15860.800367] hub 2-0:1.0: unable to enumerate USB device on port 5
[15861.064072] usb 2-5: new high speed USB device using ehci_hcd and address 31
[15861.131626] hub 2-0:1.0: unable to enumerate USB device on port 5
[15861.404080] usb 7-1: new full speed USB device using uhci_hcd and address 4
[15861.572095] usb 7-1: not running at top speed; connect to a high speed hub
[15861.593864] usb 7-1: configuration #1 chosen from 1 choice
[15861.608194] uvcvideo: Found UVC 1.00 device <unnamed> (17ef:4807)
[15861.620945] input: UVC Camera (17ef:4807) as /devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/input/input35
[17369.873095] usb 5-2: new full speed USB device using uhci_hcd and address 2
[17370.067152] usb 5-2: configuration #1 chosen from 1 choice
[17370.124203] usbcore: registered new interface driver hiddev
[17370.136211] input: C-Media USB Headphone Set as /devices/pci0000:00/0000:00:1d.0/usb5/5-2/5-2:1.3/input/input36
[17370.136319] generic-usb 0003:0D8C:000C.0001: input,hidraw0: USB HID v1.00 Device [C-Media USB Headphone Set ] on usb-0000:00:1d.0-2/input3
[17370.136343] usbcore: registered new interface driver usbhid
[17370.136347] usbhid: v2.6:USB HID core driver
[17370.227201] usbcore: registered new interface driver snd-usb-audio
[17429.678091] uvcvideo: Failed to query (135) UVC control 2 (unit 2) : -71 (exp. 2).
[17429.689056] uvcvideo: Failed to set UVC probe control : -71 (exp. 26).
[17429.689799] uvcvideo: Failed to set UVC probe control : -71 (exp. 26).
[17429.691272] uvcvideo: Failed to set UVC probe control : -71 (exp. 26).
[17429.691796] uvcvideo: Failed to set UVC probe control : -71 (exp. 26).