snd_pcm_stream_unlock(9)

✨ snd_pcm_stream_unlock(9) ✨ — Kernel API Manual

okay bestie, welcome to the snd_pcm_stream_unlock(9) page in the Kernel API Manual — it’s short, it’s iconic, and it’s literally the unlock bestie to snd_pcm_stream_lock. 💅

🎀 NAME 🎀

snd_pcm_stream_unlock — Unlock the PCM stream. no cap. 💖

🌸 SYNOPSIS 🌸

void snd_pcm_stream_unlock (struct snd_pcm_substream *substream );

🦋 ARGUMENTS 🦋

• substream — the PCM substream. that’s the one we’re unlocking, periodt. ✨

💜 DESCRIPTION 💜

okay so the whole vibe is this: it unlocks the PCM stream that has been locked via snd_pcm_stream_lock. matching lock/unlock energy, fr fr. 🔐➡️🔓

🔥 SEE ALSO 🔥

Kernel file ./sound/core/pcm_native.c is where the source lives, and the see-also besties are all here — not a single one skipped, because we don’t do that. 🫶

• snd_pcm_stream_lock(9)
• snd_pcm_stream_lock_irq(9)
• snd_pcm_stream_unlock_irq(9)
• snd_pcm_stream_unlock_irqrestore(9)
• snd_pcm_set_state(9)
• snd_pcm_get_state(9)
• snd_pcm_hw_params_choose(9)
• snd_pcm_start(9)
• snd_pcm_stop(9)
• snd_pcm_drain_done(9)
• snd_pcm_stop_xrun(9)
• snd_pcm_suspend_all(9)
• snd_pcm_prepare(9)
• snd_pcm_kernel_ioctl(9)
• snd_pcm_lib_default_mmap(9)
• snd_pcm_lib_mmap_iomem(9)

mwah 💋 this page is brought to you by the source tree at ./sound/core, stamped October 2026, and it’s still serving snd_pcm_stream_unlock(9) energy. slay. 👑