cea@xxxxx wrote: > Have a linux system (Debian) with automatic voice recording (when user log > in). > Users should not have impact on that process - do not mute mic, do not > change capture source nor recording level. > However audio playback should be unrestricted for all users. All mixer controls of a card are managed with a single device node (/dev/snd/controlCx), so it is not possible to use file permissions for this. However, in your recording program (or a separate tool), you can call snd_ctl_elem_lock() for all mixer controls that no other program should be able to change. Regards, Clemens ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
