tb_port_disable(9)
π tb_port_disable β bestie edition
okay so this is a page from the Kernel API Manual, and it's all about tb_port_disable(9). sit down, grab a strawberry drink π, we're learning kernel internals together.
β¨ NAME β¨
tb_port_disable β literally just disable the lane adapter. that's it. that's the whole vibe. π
πΈ SYNOPSIS πΈ
int tb_port_disable (struct tb_port *port );
it's giving very simple signature energy ngl β¨ returns an int, takes one pointer. no cap.
π¦ ARGUMENTS π¦
portβ the port you wanna disable. and yes bestie, it can beNULLπ like the function is chill about it.
π DESCRIPTION π
so this one is used for lane 0 and 1 adapters to disable them. that's the entire job. main character energy but make it niche π
lowkey obsessed with how short this description is. no notes. iconic behavior.
π RETURN π
0β slay, it worked β¨- negative errno β not slay π something went wrong, and it tells you with a negative errno value.
π SEE ALSO π
first things first, the source lives in the kernel file ./drivers/thunderbolt/switch.c β that's the home base π
and then the whole friend group, 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_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(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)
like, that's a whole group chat right there π«Ά iykyk.
and that's the page!! tysm for reading π this one came from ./drivers/thunderbolt, dated October 2026 β so yeah, very demure, very future-dated. periodt. π§ββοΈβ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms