snd_hdac_regmap_update(9)

📦 version 7.3.1, in nixpkgs unstable

💅 snd_hdac_regmap_update(9) — like, the Kernel API Manual edition 🎀

okay bestie, buckle up, we're reading a manpage and honestly? it's a short one but it eats. this is snd_hdac_regmap_update from the Kernel API Manual, and it's giving "tiny function, big purpose" energy ✨

🌸 NAME 🌸

snd_hdac_regmap_update — update a verb value, but make it cached 💅

like, you're updating the verb and the regmap is keeping track, no cap.

✨ SYNOPSIS ✨

int snd_hdac_regmap_update (struct hdac_device *codec , hda_nid_t nid ,
unsigned int verb , unsigned int mask , unsigned int val );

so she takes five things and returns an int, periodt. 🔥

🫶 ARGUMENTS 🫶

  • codec — the HD-audio codec, aka the main character of this whole situation 👑
  • nid — the codec NID (yes, literally that, that's the whole description, we love a concise queen)
  • verb — the verb that's getting updated 🦋
  • mask — the bit mask for the update, so we only touch the bits we're supposed to 🙈
  • val — the value you're updating it to, slay

💖 DESCRIPTION 💖

okay so real talk: this is for updating a verb value with caching, that's the whole vibe check 💫

and here's the one thing you gotta remember, bestie, highlighted in dramatic font because the manpage said it, not me:

for updating an amp value, use snd_hdac_regmap_update_amp instead!! 😭 like don't come for this function for amp stuff, it's not her job, snd_hdac_regmap_update_amp is the one you want.

⭐ RETURN ⭐

  • 0 if it worked out — success, we love to see it 🎉
  • a negative error code if it didn't — not the vibe, but at least you know 💀

🌈 SEE ALSO 🌈

the whole friend group fr fr 🧚💜 go read their pages too, iykyk

🍓 cute lil sign-off: this page lives in ./include/sound and the version is dated October 2026 — so like, from the future, iconic. mwah, study safe bestie 💅🎀
📦 where this page comes from