29-rc2 remaining breakage

Andy Green andy at openmoko.com
Sun Feb 1 08:43:51 CET 2009

Hash: SHA1

Somebody in the thread at some point said:
| On Sat, Jan 31, 2009 at 11:33 AM, Andy Green <andy at openmoko.com>
| (cut)
|> It seems 2.6.29 has impacted this because otherwise we did not meddle
|> with this area.
| Do you think we need to try a newer version of alsa in the rootfs?
| I've read alsa has been changing.

I don't think it's that simple.  I saw there are changes pending off
alsa list from Mark Brown including one that Michael took care about
already (NULL regigstration lookups we saw).

I fear we have to dig into the thing enough to understand why the mixer
controls have gone away.

Either it's intentional and wm8753 driver changed to no longer expose
them, or it's accidental and then we are not setting the state of those
hardware elements any more down at the chip with aslactl.

What will give results is build an older version, and add printks to see
where and when these now missing mixer controls get registered.  Then go
back to HEAD and follow the same path until it differs, then we know the

- -Andy
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