snd_hda_jack_report_sync(9)

💖 snd_hda_jack_report_sync(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's a tiny lil function from the ALSA/HDA corner of the kernel and it's literally so simple you're gonna slay it in like thirty seconds. no cap.

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✨ NAME ✨

snd_hda_jack_report_sync — syncs up the states of all the jacks and reports them if anything changed 🎀

like, it's the vibe check for your audio jacks. she goes around, makes sure everybody's state is current, and if something shifted she reports it. periodt.

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🌸 SYNOPSIS 🌸

void snd_hda_jack_report_sync (struct hda_codec *codec );

that's it. that's the whole thing. one function, one arg, void return because she doesn't need to hand anything back to you — the reporting happens as a side effect, iykyk 💅

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🦋 ARGUMENTS 🦋

• codec — the HDA codec 💜

that's the one and only thing you pass in. just your struct hda_codec * and she takes it from there. give her the codec, she handles the jacks. iconic behaviour honestly.

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🫶 SEE ALSO 🫶

so if you wanna go deeper down the rabbit hole (and you know you do), the source lives in the kernel file ./sound/hda/common/jack.c — and here's the whole friend group, every single one of them, no gatekeeping:

• 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_set_button_state(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)

like… that's the squad 😭 go read them, they're all right there in ${PAGER} waiting for you 🧚

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quick reminder bestie: this page gives you the signature and the vibes, but the actual behaviour lives in that jack.c file — so if you're doing anything real with it, go look at the source. trust. 🙈

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and that's the whole page, you ate that fr fr 🔥

✧･ﾟ: * this cutie was brought to you by ./sound/hda/common, dated October 2026 — go forth and sync those jacks, queen 👑 * :･ﾟ✧