[alsa-devel] [PATCH v2 1/2] ALSA: jack: create jack kcontrols for every jack input device

[Raymond Yau]

>>
>> One thing that is unclear for me is that how are those jacks represented
>> that support any of headsets/headphones/microphones, but don't provide
>> information about which device type has been plugged in.
>
>
> For headphone or headset, independent switches:
>
>  * "Headphone Jack"
>  * "Headset Mic Jack"
>
> For headphone or headset, one hw switch only:
>
>  * "Headphone Jack"
>  * "Headset Mic Phantom Jack"

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/log/sound/pci/hda?qt=grep&q=dell-headset-multi

I don't understand how can Dell OptiPlex  3030 All-in-One and XPS 15
laoptop can use the same pin config "dell-headset-multi" ?

There is line out jack in aio spec : Universal Headset (Side)1
Line-out(Rear)

While xps 15 notebook has internal speaker and headset