Comment 31 for bug 255678

Same problem here on Karmic:

uname -a:
Linux ~~hostname~~ 2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 02:39:34 UTC 2010 x86_64 GNU/Linux

webcam: Logitech ClickSmart 310
driver: should use gspca_spca500

dmesg output:
[526547.262544] usb 2-1: new full speed USB device using ohci_hcd and address 3
[526547.482178] usb 2-1: configuration #1 chosen from 1 choice
[526548.442486] Linux video capture interface: v2.00
[526548.488869] gspca: main v2.6.0 registered
[526548.491867] gspca: probing 046d:0900
[526548.538130] gspca: probe ok
[526548.538180] gspca: probing 046d:0900
[526548.538227] usbcore: registered new interface driver spca500
[526548.538234] spca500: registered
[526549.020441] gspca: disconnect complete

There is NO /dev/video0 created at this point. I have my suspicions that there was one there between the last 2 messages, but it is nearly immediately disconnected.

lsmod | grep gspca:
gspca_spca500 13664 0
gspca_main 26816 1 gspca_spca500
videodev 43360 1 gspca_main

I will try the unloading and then reloading modules trick described in #19.
The driver author lists this model camera as "not tested": http://moinejf.free.fr/webcam.html.

 -Patiently waiting
Paul