snd_hdac_ext...eam_init_all(9)

💖 snd_hdac_ext_stream_init_all(9) 💖

okay so this is a page straight out of the Kernel API Manual, and bestie, it's literally the glow-up moment for extended HDA bus stream objects ✨

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🌸 NAME 🌸

snd_hdac_ext_stream_init_all — create and initialize the stream objects for an extended hda bus 🎀

no cap, that's the whole vibe: it's the function that makes the streams exist in the first place.

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✨ SYNOPSIS ✨

int snd_hdac_ext_stream_init_all (struct hdac_bus *bus , int start_idx ,
       int num_stream , int dir );

she takes four things and returns an int, periodt 💅

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🫶 ARGUMENTS 🫶

• bus — the HD-audio core bus 🚌 like, the whole ride. the stream objects get built on top of this one.
• start_idx — where the stream indexing begins 👑 your starting point, your origin story.
• num_stream — how many streams we're initializing 🔢 literally the count, no more no less.
• dir — the direction of the streams 🌈 which way they flow, iykyk.

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🔥 SEE ALSO 🔥

the kernel file lives right here, bestie, go look at the source, it's giving main character energy:

./sound/hda/core/ext/stream.c

and here's the whole friend group — these functions are all in the group chat 💬:

• snd_hdac_ext_host_stream_setup(9)
• snd_hdac_apl_host_stream_setup(9)
• snd_hdac_ext_stream_init(9)
• snd_hdac_ext_stream_free_all(9)
• snd_hdac_ext_stream_decouple(9)
• snd_hdac_ext_stream_start(9)
• snd_hdac_ext_stream_clear(9)
• snd_hdac_ext_stream_reset(9)
• snd_hdac_ext_stream_setup(9)
• snd_hdac_ext_stream_assign(9)
• snd_hdac_ext_stream_release(9)
• snd_hdac_ext_cstream_assign(9)

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ngl, init_all is doing a lot of heavy lifting in that name — she's the setup queen 👑, and everybody else above is just her supporting cast 💜

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and that's the whole page, bestie!! 🦋 sign-off time: this lil beauty comes from ./sound/hda/core/ext, dated October 2026 — remember the date, it's iconic 🎀⭐💖