snd_pcm_hw_constraint_step(9)

📦 version 7.3.1, in nixpkgs unstable

💅 snd_pcm_hw_constraint_step — like, the Kernel API Manual page bestie 🎀

Ok so real talk, this one's from the Kernel API Manual and the star of the show is snd_pcm_hw_constraint_step. It's a lil kernel function and honestly? She's serving. Let's get into it ✨

✨ NAME ✨

snd_pcm_hw_constraint_step — adds a hw constraint step rule 🦋

🌸 SYNOPSIS 🌸

int snd_pcm_hw_constraint_step (struct snd_pcm_runtime *runtime ,
unsigned int cond , snd_pcm_hw_param_t var , unsigned long step );

🎀 ARGUMENTS 🎀

  • runtime — the PCM runtime instance, aka the main character of this whole situation 💖
  • cond — the condition bits, lowkey the vibe check for when this rule kicks in
  • var — the hw_params variable you're putting the step constraint on, periodt
  • step — the step size, the actual number doing the work 🔥

👑 RETURN 👑

Zero if it all worked out (slay 💅), or a negative error code if it didn't (not slay, crying 😭).

🌈 SEE ALSO 🌈

Kernel file ./sound/core/pcm_lib.c — go read her, fr fr 📖

That's the whole page bestie, no cap 🫶 Sourced from ./sound/core, dated October 2026, and she ate. 💅✨ Go forth and constrain those steps, icon 🧚💜

📦 where this page comes from