snd_hdac_read(9)

📦 version 7.3.1, in nixpkgs unstable

💅 snd_hdac_read(9) — like, the Kernel API Manual page for executing a verb 🎀

okay so bestie, welcome to snd_hdac_read ✨ this is a lil kernel API page from the Kernel API Manual and honestly? it's giving "small function, big responsibilities." let's get into it 🫶

✨ NAME ✨

snd_hdac_read — execute a verb 👑

like yes, that's the whole vibe. it runs a verb. that's it. that's the function. periodt 💅

🌸 SYNOPSIS 🌸

int snd_hdac_read (struct hdac_device *codec , hda_nid_t nid , unsigned
int verb , unsigned int parm , unsigned int *res );

look at that signature. five whole parameters. she's got range 💖 (and she returns an int, bestie — remember that, it's important later 👀)

🦋 ARGUMENTS 🦋

  • codec — the codec object 💜 this is the thing you're working with, the main character of the operation.
  • nid — the NID where the verb gets executed. like, where the magic happens ✨
  • verb — the actual verb you're executing. yes, this is the verb. the whole point. 🔥
  • parm — the parameter for the verb. the lil extra detail that makes it specific 🎀
  • res — a pointer to store the result. but if you're running async, this is NULL 🫶 so like, no result pointer, no problem… as long as you meant to do that 🙈

💀 DESCRIPTION 💀

Returns zero if successful, or a negative error code if it isn't 😭

that's literally it, no cap. zero = slay. negative = something went sideways, check your life choices and your pointers 💅

ngl bestie, that's the entire description. she's concise. she's iconic. she does not waste your time 💖

🌈 SEE ALSO 🌈

okay this is the part where the manpage goes absolutely feral with cross-references, and I respect it fr fr. also sitting in the kernel file ./sound/hda/core/device.c 👑 so like, the whole squad is here:

twenty-seven links. twenty-seven. she said "you WILL understand the whole subsystem" and honestly? queen behavior 👑✨

and that's the page, bestie!! 🧚 go execute some verbs, read your results, and remember: res = NULL means async, so know what you're doing 💖

sign-off time 🎀 this lil masterpiece lives under ./sound/hda/core, dated October 2026, and it's snd_hdac_read(9) all day every day. mwah 💋

📦 where this page comes from