From 3c199a0d199f0fae78c9c1b19c11878a6134b3a8 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 13 Mar 2019 10:45:35 +0100
Subject: [PATCH 08/14] conf: pcm dmix - add CHANNELS argument

It seems that some audio devices do use only mono audio for some
applications (RPi).

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
 src/conf/alsa.conf     |  1 +
 src/conf/pcm/dmix.conf | 10 +++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/conf/alsa.conf b/src/conf/alsa.conf
index bb00ff409cd9..099805864788 100644
--- a/src/conf/alsa.conf
+++ b/src/conf/alsa.conf
@@ -70,6 +70,7 @@ defaults.pcm.ipc_key 5678293
 defaults.pcm.ipc_gid audio
 defaults.pcm.ipc_perm 0660
 defaults.pcm.dmix.max_periods 0
+defaults.pcm.dmix.channels 2
 defaults.pcm.dmix.rate 48000
 defaults.pcm.dmix.format "unchanged"
 defaults.pcm.dmix.card defaults.pcm.card
diff --git a/src/conf/pcm/dmix.conf b/src/conf/pcm/dmix.conf
index 7d0aa0158c42..7fa5c8b2e20a 100644
--- a/src/conf/pcm/dmix.conf
+++ b/src/conf/pcm/dmix.conf
@@ -3,7 +3,7 @@
 #
 
 pcm.!dmix {
-	@args [ CARD DEV SUBDEV FORMAT RATE ]
+	@args [ CARD DEV SUBDEV FORMAT RATE CHANNELS ]
 	@args.CARD {
 		type string
 		default {
@@ -36,6 +36,13 @@ pcm.!dmix {
 			name defaults.pcm.dmix.rate
 		}
 	}
+	@args.CHANNELS {
+		type integer
+		default {
+			@func refer
+			name defaults.pcm.dmix.channels
+		}
+	}
 	type dmix
 	ipc_key {
 		@func refer
@@ -58,6 +65,7 @@ pcm.!dmix {
 		}
 		format $FORMAT
 		rate $RATE
+		channels $CHANNELS
 		period_size {
 			@func refer
 			name {
-- 
2.16.4