snd_hda_jac...button_state(9)

okay bestie, you're in the Kernel API Manual, and today's main-character page is snd_hda_jac...button_state(9) ✨ lowkey iconic, highkey niche, and we're getting into it 💅

🌸 NAME 🌸

snd_hda_jack_set_button_state — report button event to the hda_jack_tbl button_state. that's the whole assignment, no cap 🎀

✨ SYNOPSIS ✨

void snd_hda_jack_set_button_state (struct hda_codec *codec , hda_nid_t
jack_nid , int button_state );

the signature, verbatim, because kernel business does not play about details 😭

🎀 ARGUMENTS 🎀

• codec — the HDA codec. that's it, that's the codec 💖
• jack_nid — the button event reports to the jack_tbl of this NID. so this NID is the one whose jack_tbl hears about it 🦋
• button_state — the button event captured by codec. the codec caught the event, and this is it 👑

💅 DESCRIPTION 💅

So the codec driver calls this function to report the button event. that's the whole flow: codec driver calls it, and the button event gets reported. no extra lore needed, fr fr 🔥

🔥 SEE ALSO 🔥

Kernel file ./sound/hda/common/jack.c is the source spot, and the whole squad is:

• 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_pin_sense(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_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)

mwah 💋 this cutie lives in ./sound/hda/common, dated October 2026, and the page is snd_hda_jac...button_state(9) — periodt, bestie 🫶