snd_pcm_lib_period_bytes(9)

📦 version 7.3.1, in nixpkgs unstable

💖 snd_pcm_lib_period_bytes — Kernel API Manual energy ✨

okay so bestie, we're in the kernel API manual and this one lives at snd_pcm_lib_period_bytes(9). yes it's a mouthful, no we're not renaming it, it's iconic and it stays. 🎀

🌸 NAME 🌸

snd_pcm_lib_period_bytes — get the period size of the current PCM, but like… in bytes 💅

✨ SYNOPSIS ✨

size_t snd_pcm_lib_period_bytes (struct snd_pcm_substream *substream );

🦋 ARGUMENTS 🦋

  • substream — a PCM substream, that's the whole vibe, that's the only thing you're passing in 🫶

🌈 RETURN 🌈

It hands you back the period byte size. that's it, that's the return value — size_t, period size, in bytes, periodt 💀

👑 SEE ALSO 👑

Kernel file ./include/sound/pcm.h — and bestie, the friend group is huge, so let's go:

fr fr that's the whole crew, no skips 🙈

that's the page!! mwah 💋 this came out of ./include/sound back in October 2026, and it's filed under snd_pcm_lib_period_bytes(9) — go read the neighbours, they're all slay too 🧚💜

📦 where this page comes from