http://git.kernel.org/cgit/linux/kernel/git/tiwai/hda-
emu.git/tree/codecs/vt1708-clevo-m540se?id=HEAD
let take vt1708 as example
pincap of hp and mic support DETECT but not support unsolicited event and this
require to set a timer to send get_pin_sense periodcally when open the
playback/capture device
Node 0x20 [Pin Complex] wcaps 0x40010d: Stereo Amp-Out
Amp-Out caps: ofs=0x1b, nsteps=0x1b, stepsize=0x06, mute=1
Amp-Out vals: [0x15 0x15]
Pincap 0x081c: OUT HP Detect
Pin Default 0x022140f0: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Green
Pin-ctls: 0xc0: OUT HP
Connection: 1
0x17
Node 0x21 [Pin Complex] wcaps 0x400101: Stereo
Pincap 0x08334: IN OUT Detect
Pin Default 0x02a190f0: [Jack] Mic at Ext Front
Conn = 1/8, Color = Pink
Pin-ctls: 0x21: IN
Connection: 1
0x1b
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_via.c?id=4e2d16d326fd33e3101ddf08730c953b480ec2ef
seem all via codec except vt1708 use unsol event for jack event and
power state event
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/log/sound/pci/hda/hda_jack.c
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https://bugs.launchpad.net/bugs/1365769
Title:
[G41MT-S2P, VIA VT2020, Pink Mic, Rear] No sound at all
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