snd_hdac_get_connections(9)

📦 version 7.3.1, in nixpkgs unstable

💅 snd_hdac_get_connections(9) — a Kernel API Manual moment ✨

okay so bestie, welcome to the snd_hdac_get_connections page from the Kernel API Manual 💖 pull up a chair, we're learning about widget connection lists and it's honestly more fun than it sounds 🎀

🌸 NAME 🌸

snd_hdac_get_connections — get a widget connection list ✨

🦋 SYNOPSIS 🦋

int snd_hdac_get_connections (struct hdac_device *codec , hda_nid_t nid
, hda_nid_t *conn_list , int max_conns );

💜 ARGUMENTS 💜

  • codec — the codec object 🫶 this is your main character, the thing everything hangs off of.
  • nid — the NID. that's it, that's the whole vibe 💅
  • conn_list — the array where the results go. it can be NULL and that is totally fine, no pressure ✨
  • max_conns — the max size of the given array. like a little container, don't overflow it 🙈

🔥 DESCRIPTION 🔥

So it returns the number of connected widgets 🔥 or zero if there's literally no connection, or a negative error code if things went sideways 😭

And listen — when the number of elements don't fit with the given array size, it returns -ENOSPC. not me getting told there's no space left 💀 that's the whole point of max_conns, bestie, she's the vibe check for your array.

When conn_list is NULL, it just checks the number of connections. no writing, just peeking 👀 a lil reconnaissance mission, very lowkey.

🧚 SEE ALSO 🧚

Kernel file ./sound/hda/core/device.c and honestly the whole friend group:

like, the whole squad 👑 go say hi, they're all iconic.

ok that's the page 🫶 go forth and count your connections, you absolute legend.

🌈 mwah 💋 this lil sign-off comes to you from ./sound/hda/core, dated October 2026 — that's the source/version and the date, and yes I'm telling you because it's literally the last line of the page and I would never gatekeep 🌸✨💖

📦 where this page comes from