snd_hdac_bus_exec_verb(9)

📦 version 7.3.1, in nixpkgs unstable

✨ snd_hdac_bus_exec_verb — bestie, let's run a verb 💅

Okay so you found snd_hdac_bus_exec_verb in the Kernel API Manual (section 9, kernel API things, iykyk) and you're like "what does this even do" — don't worry, I got you 🫶. Short version: it executes a HD-audio verb on the given bus. That's it. That's the vibe. ✨

🌸 SYNOPSIS 🌸

int snd_hdac_bus_exec_verb (struct hdac_bus *bus , unsigned int addr ,
       unsigned int cmd , unsigned int *res );

Like, literally just call it with those four things and you're living your best life 💖

🎀 ARGUMENTS 🎀

  • bus — the bus object. your main character, the bus in question 🚌
  • addr — the HDAC device address. where on the bus we're talking to 🎯
  • cmd — the HD-audio encoded verb. yes, encoded, don't come at me, it's already packed up and ready to go 📦
  • res — pointer to store the response. and listen — if this is NULL, the call performs asynchronously. no response pointer, no waiting around, very "I'll text you later" energy 😌

💖 DESCRIPTION 💖

So the whole point of this function: it returns 0 if it's successful 🔥, or a negative error code if things went sideways 😭. That's the entire description, no cap. Short and iconic, honestly.

ngl, this one's a tiny function with a big job — it's the door you knock on to get a verb run on the bus. Treat that negative return like a red flag 🚩 and handle it, bestie.

🦋 SEE ALSO 🦋

Kernel file ./sound/hda/core/bus.c — go read the source, it's giving lore 📖✨

All of these live in ./sound/hda/core, the whole friend group 🌈

Sign-off time, bestie 🎀 This little page came from ./sound/hda/core, dated October 2026, and it's page snd_hdac_bus_exec_verb(9) of the Kernel API Manual. Slay, go execute some verbs 💅👑

📦 where this page comes from