[alsa-devel] [PATCH 0/6] ASoC: rt5651: Various fixes and quirks

[Hans de Goede]

Hi all,

On 18-07-18 22:55, Hans de Goede wrote:
<snip>

> Note that unfortunately my previous round of cleanup patches removed
> 1 input mapping (of the 3 mappings in total it removed) which is
> actually necessary. So this series re-introduces that 1 mapping. I did
> not notice this before because UCM input profile switching does not work
> reliably for some reason, something which I still need to investigate.

While doing some bytcr_rt5651 work this weekend (the x86 ASoC work I
do is a spare time project for me) I hit this again, so this time
I've spend some time getting to the bottom of this. The cause is a
pulseaudio bug, where pulseaudio uses a strncmp without first
checking the lengths of the 2 strings match, causing it to see
selecting the "InternalMic-IN1" UCM device as selecting both the
"InternalMic-IN1" and the "InternalMic-IN12" device.

A pull-req fixing this is here:
https://gitlab.freedesktop.org/pulseaudio/pulseaudio/merge_requests/40

Regards,

Hans