From: David Henningsson Date: Fri, 28 Feb 2014 07:57:07 +0000 (+0100) Subject: conf: Allow 2.1 surround to use different number of channels X-Git-Tag: v1.0.28~21 X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=48f1b308cc66152eb6db66742dd0d08d888cda8d;p=alsa-lib.git conf: Allow 2.1 surround to use different number of channels This way, cards that support LFE on four channels (e g laptop with internal subwoofer) can do that, and other cards on a six channel setup can use that as well. Well, note that there is still a reference to "pcm.surround51" left here. In practice, for HDA Intel sound cards this does not matter as both surround51 and surround40 reference the same definition. (And that's the only card I currently know of that actually does surround2.1 over four channels.) Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- diff --git a/src/conf/pcm/surround21.conf b/src/conf/pcm/surround21.conf index be29020f..7f4676b3 100644 --- a/src/conf/pcm/surround21.conf +++ b/src/conf/pcm/surround21.conf @@ -51,10 +51,9 @@ pcm.!surround21 { ] } } - slave.channels 6 - ttable.0.0 1 - ttable.1.1 1 - ttable.2.5 1 + ttable.0.FL 1 + ttable.1.FR 1 + ttable.2.LFE 1 hint { description "2.1 Surround output to Front and Subwoofer speakers" device $DEV