On Fri, 05 Mar 2021 10:26:08 +0100, Hui Wang wrote:
With the HDA driver, if the headset buttons are supported, an audio Jack will be created for them. This audio Jack is a bit confusing to users since it can't report headphone/mic insertion events but it claims to support these events.
And in addition, the driver already builds a headphone Jack and a mic Jack, and most of those buttons are used for headphone playback, so do some change to bind those buttons to the headphone Jack. After this change, the key events are generated from NID 0x55, and are reported to the input layer via headphone jack (NID 0x21).
If there is no headphone Jack, then build an audio jack to support those buttons same as previously.
Signed-off-by: Hui Wang hui.wang@canonical.com
In the v2, add a function snd_hda_jack_set_button_state(), the codec driver calls it to report the button state.
Thanks, applied now to for-next branch.
Takashi