snd_hda_gen_shutup_speakers(9)

📦 version 7.3.1, in nixpkgs unstable

💅 snd_hda_gen_shutup_speakers(9) — like, the whole glow-up

okay so bestie, we're in the Kernel API Manual, section 9, and today's main character is snd_hda_gen_shutup_speakers(9). yes that's a whole mouthful, no we're not shortening it, it's iconic. 🎀

✨ NAME ✨

snd_hda_gen_shutup_speakers — forcibly mute the speaker outputs. like, forcibly. not a suggestion, not a vibe check, an actual forced mute. 🔇

🌸 SYNOPSIS 🌸

bool snd_hda_gen_shutup_speakers (struct hda_codec *codec );

that's it. that's the whole call. returns a bool, takes one thing, slays. 💅

🦋 ARGUMENTS 🦋

  • codec — the HDA codec. that's the one (1) thing you hand it. the codec. that's the whole argument, bestie. 🫶

⭐ DESCRIPTION ⭐

okay so here's the tea: this function forcibly mutes the speaker outputs, and you're supposed to call it at suspend or shutdown. think of it as telling the speakers "girl, go to sleep" — except it's not asking. 🔥

the way that it works is lowkey important: the mute state done by this function isn't cached, which means the original state will be restored at resume. so it's not a permanent personality change, it's just a little nap. your speakers wake up exactly how they were. no cap. 😭

it returns true if the mute state has been changed. so like, if nothing needed muting, you get false. if it actually did the thing — true. that's the whole return situation. 👑

🧚 SEE ALSO 🧚

the kernel file in question is ./sound/hda/codecs/generic.c, and honestly the whole friend group shows up here, so let's do the roll call 💜:

every single one of them, no skips, we don't do that here. 🌈

quick reminder bestie: this thing forcibly mutes, and the state isn't cached — the original comes back at resume. memorize it, it's on the test. 📝

and that's the page! brought to you by the fine folks over at ./sound/hda/codecs, dated October 2026, page snd_hda_gen_shutup_speakers(9) — mwah, bye bestie, go mute some speakers 💖✨🎀

📦 where this page comes from