snd_hdac_codec_read(9)

📦 version 7.3.1, in nixpkgs unstable

✨ snd_hdac_codec_read ✨

okay bestie, gather round 💖 this one is a kernel API manual page (section 9, the whole snd_hdac_codec_read(9) situation), and it's literally just: send a command, get the answer back. that's it. that's the vibe. 🎀

🌸 NAME 🌸

snd_hdac_codec_read — send a command and get the response 💅

✨ SYNOPSIS ✨

int snd_hdac_codec_read (struct hdac_device *hdac , hda_nid_t nid , int
flags , unsigned int verb , unsigned int parm );

that signature is giving main character energy ngl 👑

🫶 ARGUMENTS 🫶

  • hdac — the HDAC device. your whole entire device bestie 🦋
  • nid — the NID you're sending the command to 📍
  • flags — optional bit flags. optional!! so if you don't need 'em, don't sweat it 🌈
  • verb — the verb to send. like, the actual thing you're asking for 🗣️
  • parm — the parameter for the verb. the little side dish that comes with it 🍓

💜 DESCRIPTION 💜

Send a single command and read the corresponding response. one command in, one response out, no cap ✨

Returns the obtained response value, or -1 for an error 😭 so like, if you get -1 back, that's the "something went wrong" signal, fr fr. don't ignore it.

🔥 SEE ALSO 🔥

Kernel file ./sound/hda/core/device.c — plus literally the whole friend group, iykyk 🫶

💀 reminder: snd_hdac_codec_read(9) lives in ./sound/hda/core, that's the directory, don't @ me.

and that's the page!! sourced from ./sound/hda/core, October 2026 edition, brought to you by the Kernel API Manual (section 9, obviously) — mwah, study hard bestie, you're gonna slay this 💅✨👑

📦 where this page comes from