On Mon, 2006-05-22 at 22:11 -0500, Hollis Blanchard wrote:

The "auto-loading" stuff doesn't seem to be working for me on my
PowerMac11,2, with a fresh git clone as of right now. What is the base
module that should load all the others? After a "make install", I still
had to modprobe almost everything by hand (`find ./snd-aoa -name \*.ko`
in the source directory to get a list).

Odd. i2sbus should pull in all other required modules, and should itself
load automatically at boot due to having a modalias that matches the
of:... modalias the mac-io bus device for the i2s stuff has.

snd-aoa-codec-tas: found keywest-i2c-bus, checking if tas chip is on it
snd-aoa-codec-tas: created and attached tas instance
snd-aoa-codec-tas: found keywest-i2c-bus, checking if tas chip is on it
snd-aoa-codec-tas: created and attached tas instance

Uh. That one I need to check, there is no tas codec on your machine.

snd: Unknown layout ID 0x44

That looks like you have snd-powermac loaded too. Or not? I don't think
I have anything that prints "snd:" as the prefix but I might be wrong.

snd-aoa-fabric-layout: found bus with layout 68 (using)
snd-aoa: fabric didn't like codec tas
snd-aoa: fabric didn't like codec tas
snd-aoa-codec-onyx: found pcm3052
snd-aoa-fabric-layout: platform-onyx-codec-ref doesn't match!
snd-aoa: fabric didn't like codec onyx
snd-aoa-codec-onyx: created and attached onyx instance
snd-aoa-codec-onyx: found pcm3052
snd-aoa-fabric-layout: can use this codec
snd-aoa-codec-onyx: attached to onyx codec via i2c
snd-aoa-codec-onyx: created and attached onyx instance

Most of this is due to that device-tree bug on those machines.

For the record, there are two "layout-id" properties in my device tree,
as discussed in this patch:
http://patchwork.ozlabs.org/linuxppc/patch?id=4867

Note that the patch is mine :)
But also note that this isn't the reason that there are two layout-id
properties, there really *are* two sound nodes with layout-id property
because there are two i2s busses for the two codecs.

Ultimately, snd_aoa_codec_onyx seems to be the happy module. Only the
headphone jack was enabled; I had to use GNOME's "Volume Control" panel
applet to enable speakers or line out (both of which work).

However, volume control doesn't work at all, for both line-out and
headphone jacks. Should it?

Yes, it should. I think the bug is that the tas module thinks it can
attach a codec here. Can you try *not* loading that module and see if it
works better then? I'll try to see if I can make the tas module not
attach on those machines, but as long as you don't load it manually all
should be fine.

Also, it would be helpful if the git tree were better publicized
somewhere (e.g. http://johannes.sipsolutions.net/). I had to dig through a LOT of mails to find the source.

Sorry. I linked it up on http://johannes.sipsolutions.net/Projects/ and
will add a few more details later.

johannes