static const struct snd_kcontrol_new snd_ac97_ad1981x_jack_sense[] = {
AC97_SINGLE("Headphone Jack Sense", AC97_AD_JACK_SPDIF, 11, 1, 0),
AC97_SINGLE("Line Jack Sense", AC97_AD_JACK_SPDIF, 12, 1, 0),
};
these two controls only change JSMT2 and JSMT1
you need bit 2 and bit3 of AC97_AD_JACK_SPDIF for JS0 ST and JS1 ST
create hp jack kctl similar to
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/oxygen?id=435feac648cab190990aa0bf9355f77d1f082db3
the point is when do the driver call snd_jack_report by interrupt or
timer
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https://bugs.launchpad.net/bugs/1078704
Title:
headphone jack sense not enabled
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