snd_hda_jack_pin_sense(9)

✨ snd_hda_jack_pin_sense(9) ✨

okay so bestie, we're in the Kernel API Manual today and this page is literally all about snd_hda_jack_pin_sense — like, the whole entire function 💅 buckle up.

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🌸 NAME 🌸

snd_hda_jack_pin_sense — execute pin sense measurement ✨

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🎀 SYNOPSIS 🎀

u32 snd_hda_jack_pin_sense (struct hda_codec *codec , hda_nid_t nid ,
int dev_id );

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💖 ARGUMENTS 💖

• codec — the CODEC to sense 👀 like, the one we're actually checking out
• nid — the pin NID to sense 🎯 the specific pin we're putting under the microscope
• dev_id — pin device entry id 🏷️ the little id tag for the pin's device entry

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🦋 DESCRIPTION 🦋

So what this does is: it executes the necessary pin sense measurement 🫶 and then returns its status bits — that's the Presence Detect, Impedance, ELD Valid etc. status bits 🌈 (yes, all of them, "etc." included, no cap).

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⭐ SEE ALSO ⭐

Kernel file ./sound/hda/common/jack.c is where the whole friend group lives, iykyk:

• is_jack_detectable(9)
• snd_hda_jack_tbl_get_mst(9)
• snd_hda_jack_tbl_get_from_tag(9)
• snd_hda_jack_tbl_new(9)
• snd_hda_jack_set_dirty_all(9)
• snd_hda_jack_detect_state_mst(9)
• snd_hda_jack_detect_enable_callback_mst(9)
• snd_hda_jack_detect_enable(9)
• snd_hda_jack_set_gating_jack(9)
• snd_hda_jack_bind_keymap(9)
• snd_hda_jack_set_button_state(9)
• snd_hda_jack_report_sync(9)
• snd_hda_jack_add_kctl_mst(9)
• snd_hda_jack_add_kctls(9)
• snd_hda_jack_unsol_event(9)
• snd_hda_jack_poll_all(9)

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okay that's the whole vibe 💜 this icon of a page came out of the ./sound/hda/common crew and it's dated October 2026 — go off, bestie, you ate 👑✨