Henryk Plötz attempted an alsa-lib install in https://dev.openwrt.org/ticket/486 a while back, I'm trying to regenerate this project and get alsa working in OpenWrt.  This would allow multi channel sound cards and more conventional sound applications to all work on openwrt.

I've got two packages that both compile fine for me, but still dont give me working alsa;
http://www.voodoowarez.com/wrt/alsa-lib.tar.gz
http://www.voodoowarez.com/wrt/mpd.tar.gz

The notable difference between this and henryk's is that I simply manually drop into the uclib buildroot and add wordexp, since the alsa functionality that uses wordexp is actually kind of critical for a large number of apps.  Its also alsa-lib 1.0.11rc4, which matches/matched the most recent alsa on openwrt.  When i last worked on this, all the dev work was still in trunk, so this is still kamikazee work, not buildroot-ng.

These attempts dont really cover that much ground, but I kind of deadlocked myself and didnt know where to go.  Getting real sound support on openwrt is a very important goal to me, and I'd be delighted to help fruther this however possible.

Hello.

Have you made any progress on this?

I am also trying to make a working alsa lib to use with a midi interface I have, hopefully to make  a working wireless midi node with my router.

when I try to launch my midi app, I get this error message :

root@OpenWrt:/multimidicast# multimidicast
multimidicast v1.1 (c) 2005 by Dirk Jagdmann <doj@cubic.org>
multimidicast: can't resolve symbol 'wordexp'

Is this normal? Do you have the same problems on your end?
I just compiled your lib and installed the .ipkg file on my router. When you say you "droppped manually into the uclib buildroot and add wordexp", are any other files from the system affected?

Also, inside your patch file is mention of the 1.0.9 lib sources. Why is that?

Thanks!

Another n00b trying to bring up alsa here. Actually everything looks good up until I try aplay.

I'm on kamikaze 5435 (that's after the reconvergence of buildroot-ng into trunk). kernel 2.6.17. I symlinked packages/alsa-lib and packages/alsa-utils into trunk/package. The make menuconfig gave a warning

There is no package/alsa; may be just an erroneous config file trying to make a dependency on kmod-alsa ??

Anyhow, all built fine, flashed to WGT634U, detected my USB2.0 C-media audio dongle on boot, auto-created device files

I can send a file to /dev/sound/dsp and it plays. Woot!
But alsaplay can't open the 'default' PCM.

Do I need to set up an alsa.conf file somewhere? Default is supposed to be card 0, device 0, and that's what my usb dongle is.

TIA

Can you play mp3's with madplay ?

(can be found in the backports repository).