Line out w/ cs4231 on U10?

[Nathanial Hendler <nathan@petfinder.com>]

I've got sound working on my Ultra 10, but I can only get audio out of
my internal speaker.  I've opened alsamixer to make sure that the line
out and headphone jacks aren't muted.  They are unmutted, but the
volumes are set to zero and I can't raise them.

I've found information regarding this, but it refers to audioctl and
that seems to be out-dated.

Anyone have any ideas on why I can't get any sound out of my line out or
headphone jacks?

I'm running kernel 2.6.15.

Thanks,
Nathanial Hendler
Tucson, AZ USA