Re: [alsa-devel] alsa-lib, dmix, and snd_pcm_open_conf function

On Mon, 1 Sep 2008, Simon Tremblay wrote:

Hi,

I have a problem using dmix on my embedded system (manual installation of alsa-lib 1.0.15)

When I play a sound with aplay, it works well.

When I try -D dmix or -D plug:dmix parameter, it doesn't work.

The output is:

aplay: main:547: audio open error: Operation not permitted

strace will help you. I would look to ipc permissions (alsa.conf):

defaults.pcm.ipc_gid audio defaults.pcm.ipc_perm 0660

Jaroslav

----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.