snd_pcm_start(9)

💖 snd_pcm_start(9) 💖

okay so bestie, welcome to snd_pcm_start(9) from the Kernel API Manual — the function whose whole vibe is to start all linked streams ✨ iykyk.

✨ NAME ✨

snd_pcm_start — start all linked streams 🎀

🌸 SYNOPSIS 🌸

int snd_pcm_start (struct snd_pcm_substream *substream );

🎀 ARGUMENTS 🎀

• substream — the PCM substream instance 🫶

💅 RETURN 💅

Zero if successful, or a negative error code 🫡

⚠️ heads up, bestie: the stream lock must be acquired before calling this function. no cap, lock it first 🔒

🦋 SEE ALSO 🦋

Kernel file ./sound/core/pcm_native.c — and these are the besties you’ll wanna know too:

• snd_pcm_stream_lock(9)
• snd_pcm_stream_unlock(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_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)

cute little sign-off 💜: source/version spot is ./sound/core, the date on this one is October 2026, and the page is snd_pcm_start(9). bye bestie, go start those linked streams 🌈