alsa: when passing emptry mixer control name, force sw volume

This commit is contained in:
Lennart Poettering 2009-04-13 22:45:31 +02:00
parent 237a9e12f8
commit 89f74cb858

View file

@ -1107,6 +1107,11 @@ int pa_alsa_find_mixer_and_elem(
pa_assert(_m); pa_assert(_m);
pa_assert(_e); pa_assert(_e);
if (control_name && *control_name == 0) {
pa_log_debug("Hardware mixer usage disabled because empty control name passed");
return -1;
}
if ((err = snd_mixer_open(&m, 0)) < 0) { if ((err = snd_mixer_open(&m, 0)) < 0) {
pa_log("Error opening mixer: %s", snd_strerror(err)); pa_log("Error opening mixer: %s", snd_strerror(err));
return -1; return -1;