snd_pcm_format_cpu_endian(9)

💖 NAME 💖

okay bestie, this is the Kernel API Manual page for snd_pcm_format_cpu_endian(9), and it does exactly one little vibe check: check the PCM format is CPU-endian. that's the whole assignment, no cap. 💅

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✨ SYNOPSIS ✨

int snd_pcm_format_cpu_endian (snd_pcm_format_t format );

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🎀 ARGUMENTS 🎀

• format — the format to check. literally just hand it the format you're side-eyeing, bestie. 🫶

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🔥 RETURN 🔥

the return tea is very clear, fr fr:

• 1 — the given PCM format is CPU-endian, slay.
• 0 — opposite, so not CPU-endian.
• a negative error code — if endian not specified. 😭

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🌈 SEE ALSO 🌈

Kernel file: ./include/sound/pcm.h — that's where it lives, iykyk.

and the related pages are a whole friend group:

• 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_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)

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okay that's the whole page, bestie. source: ./include/sound, version/date: October 2026, page: snd_pcm_format_cpu_endian(9). mwah 💋🎀✨