Hi
    I have one of these cards in my notebook. At one stage I had time to play with writing a driver for the card but the manufacturer will not release any technical docs. Open sound has recently development ed a driver which one can pruchase for NetBSD-1.5 I'm using this now and its OK. No bass treble support and I had to play around with mpg123 code to get going. 
Cheers,
      Murray Armfield