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Re: mixer support on dmasound

In newsgate.debian.powerpc, Adam C Powell IV wrote:
 > > I'm getting the same thing too, but since I only use xmms, I've resorted to
 > > setting the preamp to lower the volume.
 > I'm using dmasound on stock 2.2.15 from kernel.org, and the mixer works fine.
 > (Tried aumix, gmix, gnome mixer panel applet.)

The iBook has only recently gained sound support - the driver in 2.2.15
doesn't support it :/ Neither, for that matter, is there any support in
the rsync trees on penguinppc.org (bitkeeper.fsmlabs.com rsync is down).

However, it seems the only place that has the iBook-capable driver is
at http://students.washington.edu/mpalczew/ - the dmasound.c.gz arc at
the bottom.

How the support has been done looks fairly simple (fwics). The G3 PowerBooks
have a bus called "davbus" with a member "sound". Similarly, the iBook has
a bus called "i2s-a" with a member "sound". It looks like the reason this
hasn't been synced into the main tree is because the support for iBook
sound removes the support for PowerBook G3 sound.

 > package which makes it work on internal speakers too.  If you're interested, I
 > can send it.  But first try gmix and see if any of the sliders change the volume
 > for you.

They don't for me - I'd be interested to see your patch ;)

Rob                                                      rob@impure.org.uk

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