AD1888 AC97 codec
David E. Cross
crossd at cs.rpi.edu
Tue Mar 22 11:32:50 PST 2005
On Tue, 22 Mar 2005 soralx at cydem.org wrote:
> It appears that this card has additional output channels (for [4,5,6,7].1
> sound) on microphone and/or line-in connector[s] with autodetect. So, as
> far as I understand, what happens is this:
> 0. Line-out is disabled by default (windoze driver enables it at init).
> 1. FreeBSD driver loads, attaches&inits the card, doesn't enable line-out.
> 2. You insert the headphones/speakers/etc connector into mic (or already
> have it inserted). The card's chipset detects that, so it tells the
> mux to direct output signal (shifted 20 ms in time?) to mic connector.
Most of that makes sense... except that I believe if I boot with the
speaker into the 'line out' jack it won't work. it "always" sends to the
mic, no matter what, I can test tonight though.
--
David E. Cross
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