tb_domain_disapprove_switch(9)

🌩️ NAME 🌩️

okay so bestie, this is tb_domain_disapprove_switch(9) — the Kernel API Manual entry for tb_domain_disapprove_switch, aka the "Disapprove switch" function 💅 (yes that's the actual one-liner, she's blunt and we respect it)

---

✨ SYNOPSIS ✨

int tb_domain_disapprove_switch (struct tb *tb , struct tb_switch *sw );

that's it. that's the whole vibe check. two args in, one int out 🎀

---

🫶 ARGUMENTS 🫶

• tb — the domain the switch belongs to (her home turf, her main character domain 🏠)
• sw — the switch to disapprove (sorry girl, it's not you it's the tunnel 😭)

---

💜 DESCRIPTION 💜

the way that this one is literally so short: this will disconnect the PCIe tunnel from parent to this sw ✨ no cap, that's the entire bit. it takes the PCIe tunnel that runs from the parent over to this switch and it disconnects it. periodt. 💅

ngl it's giving "uninvited from the group chat but make it silicon" 🦋

---

🌸 RETURN 🌸

• 0 — on success, slay 👑
• negative errno — in case of failure (it flopped, and it's telling you exactly how in errno format 🙈)

---

🌈 SEE ALSO 🌈

• Kernel file: ./drivers/thunderbolt/domain.c

and the whole friend group 💖:

• tb_domain_alloc(9)
• tb_domain_add(9)
• tb_domain_remove(9)
• tb_domain_suspend_noirq(9)
• tb_domain_resume_noirq(9)
• tb_domain_approve_switch(9)
• tb_domain_approve_switch_key(9)
• tb_domain_challenge_switch_key(9)
• tb_domain_disconnect_pcie_paths(9)
• tb_domain_approve_xdomain_paths(9)
• tb_domain_disconnect_xdomain_paths(9)
• tb_domain_disconnect_all_paths(9)

---

and that's the whole page bestie 🫶 this one lives in ./drivers/thunderbolt, dated October 2026, and yes she's filed under tb_domain_disapprove_switch(9) — literally the same name as the top, iconic consistency 💅✨🌸