webcam doesn't work after update of f17

view story

http://forums.fedoraforum.org – after recent update (kernel-3.5.2-1?) my webcam doesn't seem to work with the message 'device busy' (as far as i can see no application is using it). how shall i debug this further. below is the output of lsusb: Code:   lsusb -v Bus 001 Device 005: ID 0c45:6481 Microdia Device Descriptor:   bLength                18   bDescriptorType        1   bcdUSB              2.00   bDeviceClass          239 Miscellaneous Device   bDe (HowTos)