Oh heck..... On Fri, 30 Nov 2007 01:08:11 +0100 "Lennart Poettering" <mznyfn@xxxxxxxxxxx> wrote: > 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 failed to pay close enuf attention to your post. sorry 'bout that. > 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. That actually is a good question that i thought i might have to answer, but i managed to avoid it. Sorry for the confusion..... johnu > Lennart > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
