Realtek AC97 Support

Jason C. Wells wrote:
> I haven't had any luck guessing at how to provide a
driver for my 
> onboard Realtek AC97 audio under FreeBSD 6.  Has anyone
made this work?
> 
> Can I use the linux ALSA driver with FreeBSD?  Realtek
provides this on 
> their website in source.  I haven't manage to complete
a compilation of 
> the driver yet.  If such a thing has actually been done
by someone here, 
> I'll try harder.
> 
> Thanks,
> Jason C. Wells

I haven't really used 6.x at all, but I'm assuming it's
pretty similar 
if not the same as 5.x.

There is great documentation on how to set up a sound card
here: 
http://www.freebsd.org/doc/en_US.ISO88
59-1/books/handbook/sound-setup.html

What you probably want to do is to load the
"snd_driver" metadriver as a 
kernel module to see which driver works with your soundcard:

# kldload snd_driver

Then, to find out which driver it loaded:

# cat /dev/sndstat

You can either leave it as a module and load it at startup
as the 
handbook explains, or you can compile that driver into the
kernel which 
the soundcard setup chapter also documents well. I always do
the latter 
but I'm sure the module would work fine too.

By the way, ALSA is for Linux (Advanced Linux Sound
Architecture), so 
those drivers won't work on FreeBSD.

-Mark
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On 10/3/05, Mark Kane <markmkproductions.org>
wrote:
> Jason C. Wells wrote:
> > I haven't had any luck guessing at how to provide
a driver for my
> > onboard Realtek AC97 audio under FreeBSD 6.  Has
anyone made this work?
> >
> > Can I use the linux ALSA driver with FreeBSD? 
Realtek provides this on
> > their website in source.  I haven't manage to
complete a compilation of
> > the driver yet.  If such a thing has actually been
done by someone here,
> > I'll try harder.
> >
> > Thanks,
> > Jason C. Wells
>
> I haven't really used 6.x at all, but I'm assuming it's
pretty similar
> if not the same as 5.x.
>
> There is great documentation on how to set up a sound
card here:
> http://www.freebsd.org/doc/en_US.ISO88
59-1/books/handbook/sound-setup.html
>
> What you probably want to do is to load the
"snd_driver" metadriver as a
> kernel module to see which driver works with your
soundcard:
>
> # kldload snd_driver
>
> Then, to find out which driver it loaded:
>
> # cat /dev/sndstat
>
> You can either leave it as a module and load it at
startup as the
> handbook explains, or you can compile that driver into
the kernel which
> the soundcard setup chapter also documents well. I
always do the latter
> but I'm sure the module would work fine too.
>
> By the way, ALSA is for Linux (Advanced Linux Sound
Architecture), so
> those drivers won't work on FreeBSD.
>
> -Mark
> _______________________________________________
> freebsd-questionsfreebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-que
stions
> To unsubscribe, send any mail to
"freebsd-questions-unsubscribefreebsd.org"
>

One also needs to make sure that he actually has a
Realtek soundcard. In M$ Windows, Realtek drivers
are magically compatible with most of AC97 codecs.
That's not true with FreeBSD.

If you fail to set up your sound with the stock drivers
or if you need some advanced features, not present
in the driver, you can visit http://www.opensound.com/
for a free, but closed-source driver.


Cheerz,
Andrew P.
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