STRUCT TB_SERVICE_ID(9)

💖 struct tb_service_id(9) — the kernel API manual, bestie edition 💖

okay so picture this: it's giving kernel API manual, it's giving struct energy, and honestly? iconic. this is the lowkey blueprint for Thunderbolt service identifiers and you're gonna slay understanding it. no cap. 🦋

---

✨ NAME ✨

struct tb_service_id — Thunderbolt service identifiers. that's it, that's the whole vibe check. 🌈

---

🌸 SYNOPSIS 🌸

struct tb_service_id {
    __u32 match_flags;
    char protocol_key[8 + 1];
    __u32 protocol_id;
    __u32 protocol_version;
    __u32 protocol_revision;
    kernel_ulong_t driver_data;
 };

look at her. main character struct. 🎀

---

👑 Members 👑

• match_flags — the flags used to match the structure. it's literally the "who dis" of the whole thing 💅
• protocol_key — the protocol key the service supports. bestie carries this with her everywhere 🔑
• protocol_id — the protocol id the service supports. her government name, fr fr
• protocol_version — version of the protocol. gotta know which era we're in ⭐
• protocol_revision — revision of the protocol software. the glow-up history, ykyk 🧚
• driver_data — driver specific data. the driver's own lil stash of personal stuff 🙈

---

💜 Description 💜

okay so listen. Thunderbolt XDomain services are exposed as devices, right? and each one of those devices carries the protocol information the service supports. every single one. no skips. ✨

and then Thunderbolt XDomain service drivers just match against that information. that's the whole plot. matchy matchy. obsessed, honestly. 🫶

---

🔥 SEE ALSO 🔥

• Kernel file ./include/linux/device-id/tb.h — go read it, it's giving source material 💀

---

that's a wrap, bestie 💖 stay matching, stay iconic, and remember: the vibes are in the flags. 🍓

this lil masterpiece came from ./include/linux/device-id, dated October 2026 — you're welcome, mwah 💋