snd_pcm_hw_constraint_list(9)

📦 version 7.3.1, in nixpkgs unstable

💖 snd_pcm_hw_constraint_list(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — this is the whole vibe of this page, and honestly? it's a little chaotic but it slaps. Let's get into it.

🎀 NAME 🎀

snd_pcm_hw_constraint_list — apply a list of constraints to a parameter. that's it. that's the whole thing. no cap. 💅

✨ SYNOPSIS ✨

int snd_pcm_hw_constraint_list (struct snd_pcm_runtime *runtime ,
unsigned int cond , snd_pcm_hw_param_t var , const struct
snd_pcm_hw_constraint_list *l );

literally right there, copy it exactly, don't touch anything, i'm watching 🫶

🌸 ARGUMENTS 🌸

  • runtime — the PCM runtime instance. like, the whole situation you're working with. main character energy fr fr.
  • cond — condition bits. yes, bits. iconic.
  • var — the hw_params variable that you're applying the list constraint to. pick your fighter 💀
  • l — the list. that's the list. the list is l. i love brevity honestly.

🦋 DESCRIPTION 🦋

Apply the list of constraints to an interval parameter. that's the whole description. short king behavior. and yes, it's an interval parameter — not a ranges one, not a mask one, an interval one. iykyk. 🔥

⭐ RETURN ⭐

  • Zero if it worked (slay ✨)
  • a negative error code if it didn't (not slay 😭)

👑 SEE ALSO 👑

okay so this list is LONG and honestly kind of an icon. the kernel file lives at ./sound/core/pcm_lib.c, and here's everybody else in the group chat:

thirty entries. THIRTY. and every single one of them matters, don't skip a single one, i will know. 🧚

💜 quick vibe check: nothing here is deprecated, nothing here is dangerous — it either returns zero or a negative error code, and that's the whole personality. go off bestie.

and that's the page!! brought to you by ./sound/core, dated October 2026 — mwah, love u, bye 🌈💖🎀

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