[PATCH 2/4] ALSA: usb-audio: ADC3: Fix channel mapping conversion for ADC3.

From: Jorge Sanjuan
Date: Fri Apr 20 2018 - 13:05:03 EST


From: Michael Drake <michael.drake@xxxxxxxxxxxxxxx>

The channel mapping is defined by bChRelationship, not bChPurpose.

Signed-off-by: Michael Drake <michael.drake@xxxxxxxxxxxxxxx>
---
sound/usb/stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index 6a8f5843334e..956be9f7c72a 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -349,7 +349,7 @@ snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor
* TODO: this conversion is not complete, update it
* after adding UAC3 values to asound.h
*/
- switch (is->bChPurpose) {
+ switch (is->bChRelationship) {
case UAC3_CH_MONO:
map = SNDRV_CHMAP_MONO;
break;
--
2.11.0