tb_port_release_out_hopid(9)

💖 tb_port_release_out_hopid — Kernel API Manual ✨

okay bestie, so this one is literally the "give it back" function of the Thunderbolt world 💅 you allocated an output HopID, and now you're done with it, so you hand it back to the port like a good little citizen. no cap, that's the whole vibe.

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🌸 NAME 🌸

tb_port_release_out_hopid — Release allocated output HopID from port 🎀

like, it frees an output HopID that was chillin' on a port. that's it. that's the function. iconic.

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⭐ SYNOPSIS ⭐

void tb_port_release_out_hopid (struct tb_port *port , int hopid );

literally one call, returns nothing (void), takes two things. slay.

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🦋 ARGUMENTS 🦋

• port — the port whose HopID you're releasing 🫶 like, this is the port you're giving the HopID back to. be nice to it.
• hopid — the actual HopID you're releasing 💫 the number itself, the thing you're handing back.

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👑 SEE ALSO 👑

bestie the crossover list here is long — like a whole group chat of Thunderbolt friends. first up, the kernel file where the magic lives: ./drivers/thunderbolt/switch.c 💻

and then the whole squad, fr fr:

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_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) 🧚

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💀 real talk: pair this with tb_port_alloc_out_hopid(9) — you take it, you give it back. that's the cycle, periodt.

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courtesy of ./drivers/thunderbolt, dated October 2026, and this whole page is tb_port_release_out_hopid(9) — mwah 💋✨