DRI and ati AIW8500DV

[Justin C. Sherrill]

> IIRC, Gatos creates a v4l (Video for Linux) device for the capture bit.
>   AFAIK, this is unsupported in FreeBSD until someone gets around to
> writing a compatabilty layer.

I tried installing the gatos drivers and was able to get video and audio
from the composite inputs for my 8500DV, though nothing from the coax
input.  However, DRI stopped working apparently because of the mixed
DRI/DRM versions, (credit to Eric Anholt for explaining this to me) so my
3D acceleration went away.  So, it looks like you can have video in or 3D
out, but not both, with the current state of things.