snd_hdac_reg...t_amp_stereo(9)

📦 version 7.3.1, in nixpkgs unstable

💖 snd_hdac_regmap_get_amp_stereo(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's a lil kernel function from ./include/sound and honestly it's giving "small but mighty". let's get into it 🎀

✨ NAME ✨

snd_hdac_regmap_get_amp_stereo — Read stereo AMP values 🌸

🦋 SYNOPSIS 🦋

int snd_hdac_regmap_get_amp_stereo (struct hdac_device *codec ,
hda_nid_t nid , int dir , int idx );

like, that's the whole signature. four args. no drama. periodt 💅

🎀 ARGUMENTS 🎀

  • codec — the HD-audio codec 🎧 (yes, that codec, the one you're poking at)
  • nid — the NID you wanna read the AMP value from 👑
  • dir — either #HDA_INPUT or #HDA_OUTPUT, pick your fighter 🥊
  • idx — the index value (heads up: only for input direction, iykyk) 🙈

💜 DESCRIPTION 💜

Reads stereo AMP values. that's the whole vibe.

and here's the cute lil bit — the lower byte is left, the upper byte is right. so when you get your value back, left lives downstairs and right lives upstairs, no cap 💀✨

🔥 RETURN 🔥

the value 🔥 or a negative error 😭 (if it's negative, something went sideways, go check your stuff)

🌈 SEE ALSO 🌈

Kernel file ./include/sound/hda_regmap.h plus this whole friend group right here:

ngl bestie, read the stereo bytes right and you're golden 🫶

and that's the page!! brought to you by the lovely humans over in ./include/sound, dated October 2026 ⭐ go read some regmap, ily, bye 💖🧚‍♀️

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