tb_port_alloc_out_hopid(9)

💖 tb_port_alloc_out_hopid(9) 💖

hiii bestie!! welcome to the Kernel API Manual page for tb_port_alloc_out_hopid(9) — it’s giving “allocate output HopID from port” and we’re obsessed 💅✨

🌸 NAME 🌸

tb_port_alloc_out_hopid — allocate output HopID from port. periodt.

✨ SYNOPSIS ✨

int tb_port_alloc_out_hopid (struct tb_port *port , int min_hopid , int
       max_hopid );

🎀 ARGUMENTS 🎀

• port — the port you’re allocating a HopID for, bestie. main character energy 🫶
• min_hopid — the minimum acceptable output HopID. the floor, the lowest we go 💅
• max_hopid — the maximum acceptable output HopID. the ceiling, the absolute limit ✨

🔁 RETURN 🔁

you get a HopID between min_hopid and max_hopid — iconic — or a negative errno in case of error. that’s the whole return vibe: HopID between min_hopid and max_hopid or negative errno in case of error 💖

🦋 SEE ALSO 🦋

the kernel file ./drivers/thunderbolt/switch.c is linked here, and the whole Thunderbolt friend group shows up:

• 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_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(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)

okay that’s the whole page bestie!! mwah 💋 brought to you by the ./drivers/thunderbolt source tree — the October 2026 edition — signed off by your favorite tb_port_alloc_out_hopid(9) page 🫶🎀✨