tb_register_...ocol_handler(9)

📦 version 7.3.1, in nixpkgs unstable

💅 tb_register_protocol_handler — from the Kernel API Manual, bestie 💅

okay so this one is a <pink>kernel API</pink> girlie, literally lives in the (9) section, and honestly? she's the plug for getting your XDomain service driver hooked up. let's get into it ✨

🌸 NAME 🌸

tb_register_protocol_handler — the function that registers a protocol handler. that's it, that's the whole vibe 🎀

✨ SYNOPSIS ✨

int tb_register_protocol_handler (struct tb_protocol_handler *handler );

look at her. one argument. no cap, she's lowkey elegant 💅

🫶 ARGUMENTS 🫶

  • handler — the handler you're registering. yes babe, this one. hand it over 💖

🔥 DESCRIPTION 🔥

okay so here's the tea: this function is literally what lets <purple>XDomain service drivers</purple> hook into incoming XDomain messages. it's giving backstage pass energy 🎟️✨

BUT — and this is the important part, don't skip it — after this function is called, the service driver needs to be able to handle calls to the <hotpink>callback</hotpink> whenever a package with the registered protocol is received. like, that's the whole deal. you registered, you signed up, now you answer the phone when it rings 📞😭 no ghosting allowed.

🌈 RETURN 🌈

  • 0 on success 🎉 like yesss
  • negative errno otherwise 😔 it's giving not-your-day

👑 SEE ALSO 👑

this list is long, bestie, but we're gonna read every single one because that's what queens do 💅 the kernel file is ./drivers/thunderbolt/xdomain.c and everything else is right here:

like, that's the whole friend group fr fr 🫶 go read them, they ate 💀

ok tiny reminder bestie: register the handler, then actually be ready for the callback. that's the assignment. no skipping 🎀

alright that's the page!! 💖 this little love letter comes to you from ./drivers/thunderbolt, dated October 2026 — and it's titled tb_register_...ocol_handler(9) because the header truncated it and honestly? iconic. slay, stay registered, mwah 🧚‍♀️💜

📦 where this page comes from