[alsa-devel] rt5645 Jack detect code on an Asus T100HA not being able to distinguish between headphones vs headset ?

Hi Bard,

I'm having some trouble with the rt5645.c codec code not being able to distinguish between headphones vs headset on an Asus T100HA laptop. It recognizes everything as headphones. This statement in the jack-detect code:

dev_dbg(component->dev, "val = %d\n", val);

Always prints 4 for the value, no matter what I plug in.

Also the headset microphone input does not work, not even if I select it manually.

The ACPI id for the device is 10EC3270, and I opened the tablet and the marking on the codec says: ALC3270, so I guess we may need some special handling for the jack-detect (and headset microphone input) on this variant, can you help?

I checked and the jack connector does seem to be of the TRRS type.

Regards,

Hans