usb4_port_configure(9)
π usb4_port_configure(9) β like, the USB4 port configure era
okay bestie, welcome to the Kernel API Manual drop for usb4_port_configure(9) β yes that's the real manual name, we're being official today π this one lives in the thunderbolt family and honestly it's a lil one-function wonder.
β¨ NAME β¨
usb4_port_configure β literally just sets the USB4 port to configured, that's the whole vibe π
πΈ SYNOPSIS πΈ
int usb4_port_configure (struct tb_port *port );
π¦ ARGUMENTS π¦
struct tb_port *portβ your USB4 router π«Ά (yes, the description calls it a "USB4 router", that's the label it ships with, we don't question the ancestors)
π« DESCRIPTION π«
So like, what does it do? It sets the USB4 link to be configured β for power management purposes β¨ that's it. That's the whole plot. No cap, it's a tiny function with main character energy and a very specific job: flip that link into the configured state so power management can do its thing. Obsessed with the focus honestly π
β RETURN β
0on success π- a negative
errnootherwise π (so like, check it, bestie β don't just assume it ate π)
π₯ SEE ALSO π₯
The kernel file lives at ./drivers/thunderbolt/usb4.c β that's the home base π and here's the whole friend group, all of them, no skipping:
usb4_switch_check_wakes(9)usb4_switch_setup(9)usb4_switch_configuration_valid(9)usb4_switch_read_uid(9)usb4_switch_drom_read(9)usb4_switch_lane_bonding_possible(9)usb4_switch_set_wake(9)usb4_switch_set_sleep(9)usb4_switch_nvm_sector_size(9)usb4_switch_nvm_read(9)usb4_switch_nvm_set_offset(9)usb4_switch_nvm_write(9)usb4_switch_nvm_authenticate(9)usb4_switch_nvm_authenticate_status(9)usb4_switch_credits_init(9)usb4_switch_query_dp_resource(9)usb4_switch_alloc_dp_resource(9)usb4_switch_dealloc_dp_resource(9)usb4_port_index(9)usb4_switch_map_pcie_down(9)usb4_switch_map_usb3_down(9)usb4_switch_add_ports(9)usb4_switch_remove_ports(9)usb4_port_unlock(9)usb4_port_hotplug_enable(9)usb4_port_reset(9)usb4_port_unconfigure(9)usb4_port_configure_xdomain(9)usb4_port_unconfigure_xdomain(9)usb4_port_sb_read(9)usb4_port_sb_write(9)usb4_port_router_offline(9)usb4_port_router_online(9)usb4_port_enumerate_retimers(9)usb4_port_clx_supported(9)usb4_port_asym_supported(9)usb4_port_asym_set_link_width(9)usb4_port_asym_start(9)usb4_port_margining_caps(9)usb4_port_hw_margin(9)usb4_port_sw_margin(9)usb4_port_sw_margin_errors(9)usb4_port_retimer_set_inbound_sbtx(9)usb4_port_retimer_unset_inbound_sbtx(9)usb4_port_retimer_is_last(9)usb4_port_retimer_is_cable(9)usb4_port_retimer_nvm_sector_size(9)usb4_port_retimer_nvm_set_offset(9)usb4_port_retimer_nvm_write(9)usb4_port_retimer_nvm_authenticate(9)usb4_port_retimer_nvm_authenticate_status(9)usb4_port_retimer_nvm_read(9)usb4_usb3_port_max_link_rate(9)usb4_usb3_port_allocated_bandwidth(9)usb4_usb3_port_allocate_bandwidth(9)usb4_usb3_port_release_bandwidth(9)usb4_dp_port_set_cm_id(9)usb4_dp_port_bandwidth_mode_supported(9)usb4_dp_port_bandwidth_mode_enabled(9)usb4_dp_port_set_cm_bandwidth_mode_supported(9)usb4_dp_port_group_id(9)usb4_dp_port_set_group_id(9)usb4_dp_port_nrd(9)usb4_dp_port_set_nrd(9)usb4_dp_port_granularity(9)usb4_dp_port_set_granularity(9)usb4_dp_port_set_estimated_bandwidth(9)usb4_dp_port_allocated_bandwidth(9)usb4_dp_port_allocate_bandwidth(9)usb4_dp_port_requested_bandwidth(9)usb4_pci_port_set_ext_encapsulation(9)usb4_pci_port_ltssm_state(9)
and that's the tea β okay bye, this page came from ./drivers/thunderbolt, dated October 2026, and it's the usb4_port_configure(9) entry in the Kernel API Manual β read her and weep, she's iconic ππ¦π and remember bestie: always check your return value, 0 is the slay, negative errno is the not-slay π
β¨
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