snd_hdac_read_parm(9)

🌸 snd_hdac_read_parm(9) — Kernel API Manual 🌸

okay bestie, welcome to the <pink>**Kernel API Manual</pink> ✨ — today's main character is snd_hdac_read_parm, and honestly? she's a little one-trick pony but she ATE 💅

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✨ NAME ✨

<purple>snd_hdac_read_parm</purple> — literally just reads a codec parameter 🎀 that's it, that's the whole vibe

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🦋 SYNOPSIS 🦋

int snd_hdac_read_parm (struct hdac_device *codec , hda_nid_t nid , int
parm );

copy it exactly, no cap 🙈 the line break in the middle of int parm is iconic and we're keeping her

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💖 ARGUMENTS 💖

• codec — the codec object itself, your main character struct 🫶
• nid — the NID you wanna read a parameter from, iykyk 💫
• parm — the actual parameter you're reading, go get her 🔥

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🌈 DESCRIPTION 🌈

so here's the tea ☕ — she returns <red>-1</red> when there's an error. that's the whole error report. just a sad little -1 😭

but bestie, if you need to distinguish the error more strictly?? then you gotta go use <hotpink>_snd_hdac_read_parm</hotpink> directly instead 💅 like, the underscore version is the one who actually tells you what went wrong. this one? she gatekeeps 💀

ngl, if you're squinting at a bare -1 trying to figure out which error it was — you picked the wrong function, bestie 🍓

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🧚 SEE ALSO 🧚

Kernel file ./include/sound/hdaudio.h — go read it, it's giving lore 👑

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./include/sound • October 2026 • that's the source/version + date bestie, mwah 💋 slay, go read some codec params, periodt ✨🎀🦋