q6asm_open_write(9)

💖 q6asm_open_write(9) 💖

okay so this is a page from the Kernel API Manual — yes bestie, the kernel manual, we're in the big leagues now 🎀 — and it's all about q6asm_open_write, which opens up an audio client so you can write to it. iconic behavior honestly ✨

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🌸 SYNOPSIS 🌸

int q6asm_open_write (struct audio_client *ac , uint32_t stream_id ,
       uint32_t format , u32 codec_profile , uint16_t bits_per_sample , bool
       is_gapless );

like, that's the whole vibe check right there 💅 six things go in, one int comes out.

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🦋 ARGUMENTS 🦋

okay so here's what you're actually passing in, no cap:

• ac — the audio client pointer. it's giving "your main character handle" 👑
• stream_id — the stream id of the q6asm session. iykyk which stream you mean 🎀
• format — the audio sample format ✨
• codec_profile — the compressed format profile. fancy compressed stuff 🧚
• bits_per_sample — literally just bits per sample, that's the whole thing 💜
• is_gapless — a flag that says whether this is a gapless stream. gapless!! the transitions ate 🔥

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⭐ RETURN ⭐

so what comes back? bestie, it's real simple:

will be a negative value on error 😭 or zero on success 💖

that's it, that's the return. zero = slay, negative = not slay 🙈

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🌈 SEE ALSO 🌈

go look at the kernel file ./sound/soc/qcom/qdsp6/q6asm.c — the source of truth, the mothership, the whole vibe 🌸

and if you're feeling extra, here's the whole friend group of related calls, literally all of them:

• q6asm_unmap_memory_regions(9)
• q6asm_map_memory_regions(9)
• q6asm_audio_client_free(9)
• q6asm_get_session_id(9)
• q6asm_audio_client_alloc(9)
• q6asm_run(9)
• q6asm_run_nowait(9)
• q6asm_media_format_block_multi_ch_pcm(9)
• q6asm_enc_cfg_blk_pcm_format_support(9)
• q6asm_read(9)
• q6asm_open_read(9)
• q6asm_write_async(9)
• q6asm_cmd(9)
• q6asm_cmd_nowait(9)

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and that's the page!! 🫶 this little gem lives in ./sound/soc/qcom/qdsp6 and it's dated October 2026 — future vibes only, periodt 💅✨