Broken microphone switch on mtk-rt5650

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alsa-project/alsa-ucm-conf issue #336 was opened from jenneron:

The problem is that both headphones and mic use `JackControl "Headset Jack"` When there are headphones without mic connected it switches to external mic which is not present.

In kernel there appears to be only one switch https://github.com/torvalds/linux/blob/3c8b5861850c734add65233e538d4a8c2dff95d9/sound/soc/mediatek/mt8173/mt8173-rt5650.c#L130-L135 responsible for handling both headphone and microphone. So, how is userspace supposed to distinguish connection of headset and headphones without mic?

Issue URL     : https://github.com/alsa-project/alsa-ucm-conf/issues/336
Repository URL: https://github.com/alsa-project/alsa-ucm-conf



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