[PATCH] ppc64: very basic desktop g5 sound support (#2)

Benjamin Herrenschmidt benh at kernel.crashing.org
Wed Apr 13 08:17:05 EST 2005

On Tue, 2005-04-12 at 21:32 +0200, Andreas Schwab wrote:
> Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:
> > This patch hacks the current PowerMac Alsa driver to add some basic
> > support of analog sound output to some desktop G5s. It has severe
> > limitations though:
> >
> >  - Only 44100Khz 16 bits
> >  - Only work on G5 models using a TAS3004 analog code, that is early
> >    single CPU desktops and all dual CPU desktops at this date, but none
> >    of the more recent ones like iMac G5.
> >  - It does analog only, no digital/SPDIF support at all, no native
> >    AC3 support
> On my PowerMac the internal speaker is now working, but unfortunately on
> the line-out I get nearly no output.  I have pushed both the master and
> pcm control to the maximum and still barely hear anything.

Yes, I noticed that too on some models, not sure what's up at this
point. What about the headphone jack on the front ? That one appears to


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