snd_ctl_rename(9)

📦 version 7.3.1, in nixpkgs unstable

💅 snd_ctl_rename(9) — like, the Kernel API Manual bestie ✨

okay so real talk: this page lives in the Kernel API Manual and it's about snd_ctl_rename(9). yes, the whole page is literally one function. she's small but she's mighty 🎀

✨ NAME ✨

snd_ctl_rename — rename the control on the card 🦋

like... it renames a control. on the card. that's the gig. iconic honestly.

🌸 SYNOPSIS 🌸

void snd_ctl_rename (struct snd_card *card , struct snd_kcontrol *kctl ,
const char *name );

no cap, that's the whole signature. void return, so she doesn't even give you a status back. she just does it. main character energy 💅

🫶 ARGUMENTS 🫶

  • card — the card instance 💳 like, the actual card you're messing with
  • kctl — the control to rename 🎛️ this is the one getting a whole new identity
  • name — the new name ✨ the glow-up itself, as a const char *

💖 DESCRIPTION 💖

Renames the specified control on the card to the new name. that's it, that's the function. short queen. 👑

⚠️ ok but listen — this function takes card->controls_rwsem lock internally. so like... be aware of that. she locks it herself, no need to hand her a lock, but don't go doing something weird around it, bestie. lock awareness is self care 🔒

🦋 SEE ALSO 🦋

Kernel file ./sound/core/control.c — go read it, iykyk 📖 and while you're at it, the whole control-layer friend group:

not me listing all 24 of them 💀 but every single one deserves her moment fr fr 🌈

and that's the page!! 🎀 this lil beauty ships from ./sound/core, dated October 2026, and it's filed under snd_ctl_rename(9) — mwah, take care of her, she's got the controls_rwsem and everything 💜✨

📦 where this page comes from