tb_switch_c...ration_valid(9)

📦 version 7.3.1, in nixpkgs unstable

✨ tb_switch_configuration_valid ✨

okay so this is from the Kernel API Manual bestie, section 9, and it's genuinely one of the shortest little pages ever but it's lowkey important so let's get into it 💅

🌸 NAME 🌸

tb_switch_configuration_valid — sets the tunneling configuration to be valid. that's it. that's the whole job. no cap 🎀

🦋 SYNOPSIS 🦋

int tb_switch_configuration_valid (struct tb_switch *sw );

like. look at her. one argument. one return type. minimal queen behavior 👑

💖 ARGUMENTS 💖

  • sw — the router you wanna configure. that's the whole parameter. give her a struct tb_switch * and she's happy 🫶

⭐ DESCRIPTION ⭐

okay so the vibe here is: you need to call this before any tunnels can be set up through the router. like, before. not after. before. it's the pre-game ritual, the "let me just fix my hair first" moment, the prerequisite bestie 😭✨

and the really cute part? it can be called on any router. not just the one you think you need. any of them. she does not gatekeep 🌈

🔥 RETURN 🔥

  • 0 on success 💚
  • negative errno otherwise 💀

that's the whole deal. zero means slay, negative means someone's having a bad day.

👑 SEE ALSO 👑

and here's the massive friend group, fr fr, the entire thunderbolt fam showed up to the function 😭💜

Kernel file ./drivers/thunderbolt/switch.c

like I said. the whole group chat. 💀

oh and quick vibe check 🧚 this page lives in ./drivers/thunderbolt, dated October 2026, and it's filed under tb_switch_c...ration_valid(9) — see you there bestie 💖✨🎀
📦 where this page comes from