On Fri, Apr 20, 2018 at 8:03 PM, Jorge Sanjuan
<jorge.sanjuan at codethink.co.uk> wrote:
> From: Michael Drake <michael.drake at codethink.co.uk>
>
> The channel mapping is defined by bChRelationship, not bChPurpose.
>
> Signed-off-by: Michael Drake <michael.drake at codethink.co.uk>
> ---
> 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) {
Good catch!
Somehow I overlooked this, so in my case of Generic Audio it is always
mono.
Reviewed-by: Ruslan Bilovol <ruslan.bilovol at gmail.com>
> case UAC3_CH_MONO:
> map = SNDRV_CHMAP_MONO;
> break;
> --
> 2.11.0
>
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