On Thu, 29.11.07 15:46, John Utz (john.utz@xxxxxxx) wrote: John, > > > Check snd_ctl_elem_info_is_user(). All softvol controls are > > > implemented as user elements. > > > > Hmm, how am I supposed to get the snd_ctl_elem_info_t from a > > snd_mixer_elem_t or snd_mixer_selem_id_t? > > > > I figure there is no useful documentation or even example how this is > > supposed to work? Hmm, is there any real documentation available which > > describes the relation of ctl, hctl, mixer and smixer at all? For the > > uninitated the whols structure looks overly complex and redundant. > > Here's my take on it....HTH > > dont hesitate to ask Hu? Neither "snd_ctl_elem_info_t" nor "snd_ctl_elem_info_is_user()" is even mentioned in your source code excerpt? I know how to change volumes and stuff via the ALSA mixer API. What I am looking for is a way to detect whether a mixer element is implemented in softwaer only and thus doesn't influence your ouput when you open a PCM device with "hw:0", "front:0", "surround51:0" and suchlike. Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
