snd_hdac_ext_stream_init(9)

💖 NAME 💖

snd_hdac_ext_stream_init - initialize each stream (aka device) 👑

Hey bestie! Welcome to the Kernel API Manual page for snd_hdac_ext_stream_init. This is the “get each stream (aka device) ready” moment, and we’re gonna walk it together, no cap 💅

✨ SYNOPSIS ✨

void snd_hdac_ext_stream_init (struct hdac_bus *bus , struct hdac_ext_stream *hext_stream , int idx , int direction , int tag );

🎀 ARGUMENTS 🎀

• bus — HD-audio core bus 💖
• hext_stream — HD-audio ext core stream object to initialize ✨
• idx — stream index number 🎀
• direction — stream direction (SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE) 🦋
• tag — the tag id to assign 💅

🦋 DESCRIPTION 🦋

Okay so here’s the vibe: it initializes the stream. If ppcap is enabled, then it inits those and then invokes the hdac stream initialization routine. That’s the whole flow, fr fr ✨

🌈 SEE ALSO 🌈

• Kernel file ./sound/hda/core/ext/stream.c 🧚
• snd_hdac_ext_host_stream_setup(9)
• snd_hdac_apl_host_stream_setup(9)
• snd_hdac_ext_stream_init_all(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)

Catch you later, bestie — this snd_hdac_ext_stream_init(9) page is from ./sound/hda/core/ext, dated October 2026 🫶💜✨