Another example from my experience: I bought a Creative webcam on
impulse (it was very cheap, found it on Slickdeals). Plug it in - no
dice. Search for the drivers - nothing. Some similar models are
supported, but not this one (different chipset, I think, was the problem).
Creative has open source page for this webcam
(
http://tinyurl.com/m72oq3). I'll even save you the trouble of going to
that page: status is "pending" and there's no link to any sources. So
what, I'm supposed to write a driver myself?
No. Just stop impulse buying stuff.
Andras