snd_hdac_power_down(9)

📦 version 7.3.1, in nixpkgs unstable

✨ snd_hdac_power_down ✨

okay so bestie, welcome to the Kernel API Manual — this is the page for snd_hdac_power_down(9), and honestly? it's a little baddie of a function. let's get into it 💅

🌸 NAME 🌸

snd_hdac_power_down — power down the codec

like... it puts the codec to sleep. that's the whole vibe. periodt. 😴

⭐ SYNOPSIS ⭐

int snd_hdac_power_down (struct hdac_device *codec );

that's it, that's the whole signature. no cap. 🫶

🎀 ARGUMENTS 🎀

  • codec — the codec object 💖 (yes, THE codec object. the one and only. the main character.)

🦋 DESCRIPTION 🦋

so what does it actually do?? it powers down the codec, icon behavior fr fr.

it returns zero if successful, or a negative error code. that's the whole contract, bestie — 0 means slay, anything negative means something went sideways, so pls check your return value, i'm literally begging 🙈

💖 SEE ALSO 💖

this function lives in the kernel file ./sound/hda/core/device.c — and here's the whole friend group, no one left out:

(also snd_hdac_power_up(9) is literally right there if you ever need to wake it back up — balance, bestie 🧚)

🌈 sign-off 🌈

and that's the page!! brought to you by the source path ./sound/hda/core, dated October 2026, and yes the manpage title is still snd_hdac_power_down(9) because we never forget where we came from 💜

now go forth and power down some codecs, queen 👑✨

📦 where this page comes from