params_periods(9)

💖 params_periods(9) — the kernel API glow-up 💖

okay bestie, welcome to the params_periods page, straight out of the Kernel API Manual ✨ this one is short and sweet and honestly? iconic for it.

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🌸 NAME 🌸

params_periods — grab the number of periods out of the hw params 🎀

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✨ SYNOPSIS ✨

unsigned int params_periods (const struct snd_pcm_hw_params *p );

that's it. that's the whole function. no cap, she's a one-liner 💅

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🦋 ARGUMENTS 🦋

• p — the hw params, periodt. that's literally the whole argument, bestie 🫶

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⭐ RETURN ⭐

the number of periods 💫 that's the whole vibe check — it gives you back the number of periods, fr fr.

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🔥 SEE ALSO 🔥

okay so this list is long long, so buckle up babes 🎢 everything lives in the kernel file ./include/sound/pcm.h, and here's every single friend in the group chat:

• snd_pcm_stream_linked(9)
• snd_pcm_stream_lock_irqsave(9)
• snd_pcm_stream_lock_irqsave_nested(9)
• snd_pcm_group_for_each_entry(9)
• snd_pcm_running(9)
• __snd_pcm_set_state(9)
• bytes_to_samples(9)
• bytes_to_frames(9)
• samples_to_bytes(9)
• frames_to_bytes(9)
• frame_aligned(9)
• snd_pcm_lib_buffer_bytes(9)
• snd_pcm_lib_period_bytes(9)
• snd_pcm_playback_avail(9)
• snd_pcm_capture_avail(9)
• snd_pcm_playback_hw_avail(9)
• snd_pcm_capture_hw_avail(9)
• snd_pcm_playback_ready(9)
• snd_pcm_capture_ready(9)
• snd_pcm_playback_data(9)
• snd_pcm_playback_empty(9)
• snd_pcm_capture_empty(9)
• snd_pcm_trigger_done(9)
• params_channels(9)
• params_rate(9)
• params_period_size(9)
• params_buffer_size(9)
• params_buffer_bytes(9)
• snd_pcm_hw_constraint_single(9)
• snd_pcm_format_cpu_endian(9)
• snd_pcm_set_sync(9)
• snd_pcm_set_runtime_buffer(9)
• snd_pcm_gettime(9)
• snd_pcm_set_fixed_buffer(9)
• snd_pcm_set_fixed_buffer_all(9)
• snd_pcm_sgbuf_get_addr(9)
• snd_pcm_sgbuf_get_chunk_size(9)
• snd_pcm_limit_isa_dma_size(9)
• snd_pcm_direction_name(9)
• snd_pcm_stream_str(9)
• snd_pcm_chmap_substream(9)
• pcm_format_to_bits(9)
• pcm_for_each_format(9)

like I said. a whole friend group 😭💜 go say hi to all of them.

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🎀 the cute lil sign-off 🎀

this page is living its best life under ./include/sound and it's dated October 2026 — yeah, future energy, main character behavior, we love to see it 🌈⭐ take care of her, bestie, and happy hacking 💖🧚‍♀️