pcm_format_to_bits(9)

💅 pcm_format_to_bits(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ — yes we're in kernel land today, and yes this page is short but she is iconic. This is pcm_format_to_bits(9), and she does exactly one thing but she does it with strong typing, periodt 🫶

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🌸 NAME 🌸

pcm_format_to_bits — strong-typed conversion of pcm_format to bitwise 💖

like, it takes your cute little format and turns it into bits. no cap.

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✨ SYNOPSIS ✨

u64 pcm_format_to_bits (snd_pcm_format_t pcm_format );

copy that exactly bestie, character for character, don't get creative with it 🙈

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🎀 ARGUMENTS 🎀

• pcm_format — the PCM format. that's it. that's the whole argument. she's lowkey low-maintenance 💅

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⭐ RETURN ⭐

a 64bit mask corresponding to the given PCM format. so you hand her a format, she hands you back a mask, 64 bits of it, and honestly? slay 🔥

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🦋 SEE ALSO 🦋

the kernel file lives at ./include/sound/pcm.h — go say hi 🧚 and then there's the whole friend group, fr fr:

• 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_periods(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_for_each_format(9)

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bestie reminder: that's the whole list, all 42 of them, don't you dare skip any 👑 iykyk

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k bye ily, this page came from ./include/sound, October 2026, and it's literally called pcm_format_to_bits(9) — go read the others too, mwah 💜🦋🌸