From f0d48190ff0aac644f10c5ea3c4c1f68d94e18de Mon Sep 17 00:00:00 2001
From: Pavel Labath <pavelo@centrum.sk>
Date: Sat, 1 Jan 2011 11:37:31 +0100
Subject: [PATCH] $mixer: report more reasonable values for mono devices

---
 src/mixer.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/mixer.cc b/src/mixer.cc
index b8d09d09..0ba833c1 100644
--- a/src/mixer.cc
+++ b/src/mixer.cc
@@ -52,6 +52,7 @@
 
 static int mixer_fd;
 static const char *devs[] = SOUND_DEVICE_NAMES;
+static int stereo_flags;
 
 int mixer_init(const char *name)
 {
@@ -70,6 +71,8 @@ int mixer_init(const char *name)
 		}
 	}
 
+	ioctl(mixer_fd, SOUND_MIXER_READ_STEREODEVS, &stereo_flags);
+
 	for (i = 0; i < sizeof(devs) / sizeof(const char *); i++) {
 		if (strcasecmp(devs[i], name) == 0) {
 			return i;
@@ -93,6 +96,11 @@ static int mixer_get(int i)
 	}
 	rep = 0;
 
+	if(!(stereo_flags & (1<<i))) {
+		val &= 0xFF;
+		val |= val << 8;
+	}
+
 	return val;
 }