snd_hda_get_num_devices(9)

📦 version 7.3.1, in nixpkgs unstable

✨ snd_hda_get_num_devices(9) ✨

okay so this is a page straight out of the Kernel API Manual, and bestie it is so niche and so useful — we're talking about getting the DEVLIST_LEN parameter of a given widget 💅

🎀 NAME 🎀

snd_hda_get_num_devices — get DEVLIST_LEN parameter of the given widget

🌸 SYNOPSIS 🌸

unsigned int snd_hda_get_num_devices (struct hda_codec *codec ,
        hda_nid_t nid );

💖 ARGUMENTS 💖

  • codec — the HDA codec 🎧 like, the whole codec object, yeah
  • nid — NID of the pin to parse 🔍 the pin we're digging into, fr fr

🦋 DESCRIPTION 🦋

So what does it actually do? It gets the device entry number on the given widget ✨ That's the whole vibe.

This is a feature of DP MST audio — yes, DisplayPort Multi-Stream Transport, the icon it is 👑

Each pin can have several device entries in it, which is honestly kind of a lot for one little pin, but slay, we support it 💅

🌈 SEE ALSO 🌈

Also check out the Kernel file ./sound/hda/common/codec.c — that's where the lore lives 🧚 And then the entire extended family, roll call time 👑:

like, that's the whole friend group 🫶 go say hi to all of them ok?

💀 friendly reminder: every one of those is (9) — the kernel API section, not section 1, not section 3. don't be out here typoing man 1 and getting confused, i'm begging 🙈

okay that's the whole page bestie, no cap, you now understand snd_hda_get_num_devices(9) better than like 99% of people 🌟 this gem lives over in ./sound/hda/common, and the doc itself is dated October 2026 — so yeah, it's from the future, main character energy only ⭐ periodt 💜

📦 where this page comes from