tb_service_...ties_changed(9)

💅 tb_service_properties_changed — bestie, tell the other host what's up ✨

okay so this is from the Kernel API Manual, section 9 (that's the kernel dev girlies, iykyk 🧚). it's a function called tb_service_properties_changed and ngl it's giving "short king with main character energy" — like it's tiny but it does something super important. let's get into it 💖

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🌸 SYNOPSIS 🌸

like the whole function signature, no cap:

void tb_service_properties_changed (struct tb_service *svc );

it returns void bestie, so it doesn't give you anything back — it just does the thing and dips 💅

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🎀 ARGUMENTS 🎀

• svc — the service whose properties changed. that's it. that's the whole argument. she's a struct tb_service * and she's the one going through changes (main character behavior fr fr 🦋)

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✨ DESCRIPTION ✨

okay so picture this: you've got a service, right? and its properties? they've totally changed. glow-up era 💅. this function is how you notify the other host that the service's properties may have been changed. that's the whole vibe.

the way that you should be calling this: whenever svc->local_properties is updated. like, every single time. no skipping, no "oh I'll do it later" — the moment those local properties get updated, you hit this function. periodt. 🔥

lowkey important: this is literally the "hey bestie heads up 👀" message to the other side of the thunderbolt connection. don't leave them on read.

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🌈 SEE ALSO 🌈

okay so here's where the friend group shows up — the whole thunderbolt xdomain extended universe, literally iconic 👑

• Kernel file ./drivers/thunderbolt/xdomain.c
• tb_xdomain_response(9)
• tb_xdomain_request(9)
• tb_register_protocol_handler(9)
• tb_unregister_protocol_handler(9)
• tb_register_service_driver(9)
• tb_unregister_service_driver(9)
• tb_xdomain_alloc(9)
• tb_xdomain_add(9)
• tb_xdomain_remove(9)
• tb_xdomain_unregister(9)
• tb_xdomain_lane_bonding_enable(9)
• tb_xdomain_lane_bonding_disable(9)
• tb_xdomain_alloc_in_hopid(9)
• tb_xdomain_alloc_out_hopid(9)
• tb_xdomain_release_in_hopid(9)
• tb_xdomain_release_out_hopid(9)
• tb_xdomain_enable_paths(9)
• tb_xdomain_disable_paths(9)
• tb_xdomain_find_by_uuid(9)
• tb_xdomain_find_by_link_depth(9)
• tb_xdomain_find_by_route(9)
• tb_register_property_dir(9)
• tb_unregister_property_dir(9)

like, that's the whole squad right there. collect them all 🫶

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aaaand that's the page bestie!! 🎀 this manual lives in ./drivers/thunderbolt, and the docs were stamped October 2026 — so go off, notify those hosts, keep your local_properties in check, and slay 💖✨🍓