I did a bit of investigating on the following message:
  Brooktree product 0x0878 (miscellaneous multimedia, revision 0x02) at
pci0 dev 14 function 1 not configured
and here's what I've come up with.

Linux seems to have a driver named 'btaudio' which matches the PCI
vendor and product IDs for this device (linux/drivers/sound/btaudio.c).

So, it looks to me like these things have a sound card built-in. I'll
look into doing a driver up for this thing if I can find the time.

Jared