Jaroslav Kysela a écrit : > 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 066 Thanks, but I just want to know where I manage that for IPC? I created an audio group and my /dev/snd/* files are in this group and have 0660 as permissions. Simon _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel