It is rather pointless but still.
I have got two models that I bought working very well with the gspca
driver.
You can download the gspca driver from
http://mxhaard.free.fr/spca5xx.html
and simply run
./gspca_build
After that it crated the video? devices for me.
Then just fire up xawtv or gqcam.
I have two models that I bought and both work.
They are
a) Logitech quickcam express USB dev ID 046d:0928)
b) Zebronics USB dev ID 0ac8:305b)
The Logitech is the better one of course.
Hope this helps in a small way.
I also had got gyachi to do yahoo! chat with webcam long ago.
-Girish