This card works great, just as well as on Windows with the cmipci module that's by default (at least on Debian and Mandrake) built into the kernel. I just used discover to find the card, but otherwise you can probably modprobe cmipci or snd-cmipci to find it. Module is ALSA.

My computer configuration:
Custom built P4 (2.4A), 512MB RAM, Nvidia FX 5700LE, CD-ROM/DVD combo, Trendnet TEW-228PI (took a lot to get it to work with Linux).