tb_switch_alloc(9)

🦋 tb_switch_alloc(9) — straight from the Kernel API Manual 🦋

okay so bestie, welcome to the page for tb_switch_alloc(9) — it's giving kernel API manual, but make it make sense 💖

---

💖 NAME 💖

tb_switch_alloc — allocate a switch, periodt ✨

---

🌸 SYNOPSIS 🌸

struct tb_switch * tb_switch_alloc (struct tb *tb , struct device
       *parent , u64 route );

---

🎀 ARGUMENTS 🎀

• tb — pointer to the owning domain, iykyk 🌸
• parent — parent device for this switch 🫶
• route — route string for this switch 🦋

---

✨ DESCRIPTION ✨

Okay so it allocates and initializes a switch. The tea ☕: it will not upload configuration to the switch. For that you need to call tb_switch_configure separately. And the returned switch should be released by calling tb_switch_put — that's the whole vibe, bestie 💅

---

🌈 RETURN 🌈

Pointer to struct tb_switch, or ERR_PTR in case of failure 😭💀

---

🔥 SEE ALSO 🔥

Kernel file: ./drivers/thunderbolt/switch.c 💖

Also the whole friend group, no cap: tb_switch_nvm_read(9), tb_port_state(9), tb_wait_for_port(9), tb_port_add_nfc_credits(9), tb_port_clear_counter(9), tb_port_unlock(9), tb_port_enable(9), tb_port_disable(9), tb_port_reset(9), tb_port_alloc_in_hopid(9), tb_port_alloc_out_hopid(9), tb_port_release_in_hopid(9), tb_port_release_out_hopid(9), tb_next_port_on_path(9), tb_port_get_link_speed(9), tb_port_get_link_generation(9), tb_port_get_link_width(9), tb_port_width_supported(9), tb_port_set_link_width(9), tb_port_set_lane_bonding(9), tb_port_lane_bonding_enable(9), tb_port_lane_bonding_disable(9), tb_port_wait_for_link_width(9), tb_port_update_credits(9), tb_port_is_enabled(9), tb_usb3_port_is_enabled(9), tb_usb3_port_enable(9), tb_pci_port_is_enabled(9), tb_pci_port_enable(9), tb_dp_port_hpd_is_active(9), tb_dp_port_hpd_clear(9), tb_dp_port_set_hops(9), tb_dp_port_is_enabled(9), tb_dp_port_enable(9), tb_switch_reset(9), tb_switch_wait_for_bit(9), tb_switch_alloc_safe_mode(9), tb_switch_configure(9), tb_switch_configuration_valid(9), tb_switch_lane_bonding_enable(9), tb_switch_lane_bonding_disable(9), tb_switch_set_link_width(9), tb_switch_configure_link(9), tb_switch_unconfigure_link(9), tb_switch_add(9), tb_switch_remove(9), tb_sw_set_unplugged(9), tb_switch_resume(9), tb_switch_suspend(9), tb_switch_query_dp_resource(9), tb_switch_alloc_dp_resource(9), tb_switch_dealloc_dp_resource(9), tb_switch_find_by_link_depth(9), tb_switch_find_by_uuid(9), tb_switch_find_by_route(9), tb_switch_find_port(9), tb_switch_pcie_l1_enable(9), tb_switch_xhci_connect(9), tb_switch_xhci_disconnect(9) ✨

---

sign-off, bestie: source/version ./drivers/thunderbolt, date October 2026, page tb_switch_alloc(9) 💖✨