Comment 6 for bug 241753

I have the same issue with linux-image-2.6.27-7-generic both on i386 and x64.

A hotplugged camera is never recognised correctly and fails to work.
'sudo rmmod uvcvideo' and replugging helps, i.e. then the camera works despite these messages:
 [235797.076550] usb 4-6: new high speed USB device using ehci_hcd and address 9
 [235797.386065] usb 4-6: configuration #1 chosen from 1 choice
 [235798.388566] 9:3:3: cannot set freq 16000 to ep 0x86
 [235800.405614] uvcvideo: Found UVC 1.00 device <unnamed> (046d:08c3)
 [235800.443563] uvcvideo: Failed to query (135) UVC control 1 (unit 0) : -32 (exp. 26).
 [235800.471605] input: UVC Camera (046d:08c3) as /devices/pci0000:00/0000:00:1a.7/usb4/4-6/4-6:1.0/input/input6
 [235800.480124] usbcore: registered new interface driver uvcvideo
 [235800.480128] USB Video Class driver (v0.1.0)
 [235852.378470] usb 4-6: USB disconnect, address 9