Chromebook 11" - No soundcard

[Nyutag]

I know there is other topics like this [http://archlinuxarm.org/forum/viewtopic.php?f=47&t=7158&p=39348&hilit=sound#p39348] but since there are not solved, I will try another post.

alsamixer found no mixer and aplay no soundcard.

So, where to start? Is my config is Ok?

$this->bbcode_second_pass_code('', 'pacman -Q | grep linux
libutil-linux 2.25.1-1
linux-api-headers 3.16.2-1
linux-chromebook 20140525-1
linux-firmware 20140828.13eb208-1
util-linux 2.25.1-1
')

$this->bbcode_second_pass_code('', 'uname -a
Linux alarm 3.4.0-ARCH #1 SMP Sun May 25 18:58:05 MDT 2014 armv7l GNU/Linux
')

Seems to be the right kernel for me, no?
I found aur/linux-chromebook 3.16.4-1 [installed: 20140525-1] but I can't compile it if I add the armv7h arch in the PKGBUILD.

$this->bbcode_second_pass_code('', 'yaourt -Q alsa-utils
extra/alsa-utils 1.0.28-1
')

Any help welcome.