wiphy_hrtimer_work_queue(9)
π
wiphy_hrtimer_work_queue β Kernel API Manual, section 9
okay bestie, buckle up, because we're talking about wiphy_hrtimer_work_queue today and honestly? she's a whole vibe. this is the Kernel API Manual entry for wiphy_hrtimer_work_queue(9), and yes, we're doing all of it, no skips π
β¨ NAME β¨
wiphy_hrtimer_work_queue β queue hrtimer work for the wiphy πβ¨
like, that's literally her whole job. queue the work. for the wiphy. with an hrtimer. iconic behavior honestly π
πΈ SYNOPSIS πΈ
void wiphy_hrtimer_work_queue (struct wiphy *wiphy , struct
wiphy_hrtimer_work *hrwork , ktime_t delay );
lowkey read this carefully bestie, the spacing is verbatim and we do NOT mess with the code block π
π ARGUMENTS π
wiphyβ the wiphy you're queueing for. the main character of this whole operation tbh π«hrworkβ the high resolution timer worker. she's the one actually doing the thing π οΈdelayβ the delay, and it's handed to you as aktime_t. no conversion, no nothing, justktime_tπ«Ά
π¦ DESCRIPTION π¦
okay so first things first: please refer to wiphy_delayed_work_queue. like, go read that one, she's the blueprint π
the difference β the one difference that makes this one special β is that the hrtimer work uses a high resolution timer for scheduling. that's the whole lewk. that's the point π₯
and why would you need that?? because sometimes timeouts might be scheduled further in the future, and in those cases the accuracy of the normal timer is just not sufficient. like, the normal timer is doing her best and we love her, but she is not built for that πΈβ¨
and now the part you need to internalize, bestie, so pay attention:
expect a delay of a few milliseconds, because the timer is scheduled with some slack, and some more time may pass between queueing the work and its start. so likeβ¦ do not expect her to fire instantly, okay? she's on her own schedule and she needs a lil moment πβ³
π more parts coming, don't go anywhere, we are so not done π
okay so bestie, this is THE list β the "if you liked this page you're gonna be obsessed with these" section. It is long. It is iconic. And every single one of these is a manual page you can go read yourself with man 9 <name>. No skipping, we're getting through all of them together π«Ά
The whole thing lives in the kernel file ./include/net/cfg80211.h, and honestly the best starting points are Introduction(9) and Device registration(9). Everything else is the extended universe π
Introduction(9)Device registration(9)enum ieee80211_channel_flags(9)struct ieee80211_channel(9)enum ieee80211_rate_flags(9)enum ieee80211_bss_type(9)enum ieee80211_privacy(9)struct ieee80211_rate(9)struct ieee80211_he_obss_pd(9)struct cfg80211_he_bss_color(9)struct ieee80211_sta_ht_cap(9)struct ieee80211_sta_vht_cap(9)struct ieee80211_sta_he_cap(9)struct ieee80211_eht_mcs_nss_supp(9)struct ieee80211_sta_eht_cap(9)struct ieee80211_sta_uhr_cap(9)struct ieee80211_sband_iftype_data(9)enum ieee80211_edmg_bw_config(9)struct ieee80211_edmg(9)struct ieee80211_sta_s1g_cap(9)struct ieee80211_supported_band(9)_ieee80211_set_sband_iftype_data(9)ieee80211_set_sband_iftype_data(9)for_each_sband_iftype_data(9)ieee80211_get_sband_iftype_data(9)ieee80211_get_he_iftype_cap(9)ieee80211_get_he_6ghz_capa(9)ieee80211_get_eht_iftype_cap(9)ieee80211_get_uhr_iftype_cap(9)wiphy_read_of_freq_limits(9)
π Actions and configuration
This is the getting-stuff-done chunk β all the structs and helpers for actually configuring a wireless device. Channel definitions, AP settings, station parameters, the whole vibe β¨
Actions and configuration(9)struct vif_params(9)struct key_params(9)struct cfg80211_chan_def(9)struct cfg80211_tid_cfg(9)struct cfg80211_tid_config(9)struct cfg80211_fils_aad(9)struct cfg80211_set_hw_timestamp(9)cfg80211_get_chandef_type(9)cfg80211_chandef_create(9)cfg80211_chandef_identical(9)cfg80211_chandef_is_edmg(9)cfg80211_chandef_is_s1g(9)cfg80211_chandef_compatible(9)nl80211_chan_width_to_mhz(9)cfg80211_chandef_get_width(9)cfg80211_chandef_valid(9)cfg80211_chandef_usable(9)cfg80211_chandef_dfs_required(9)cfg80211_chandef_dfs_usable(9)cfg80211_chandef_dfs_cac_time(9)cfg80211_chandef_primary(9)cfg80211_chandef_npca_valid(9)cfg80211_chandef_add_npca(9)cfg80211_chandef_add_dbe(9)nl80211_send_chandef(9)ieee80211_chandef_max_power(9)cfg80211_chandef_s1g_pri_width(9)cfg80211_any_usable_channels(9)enum survey_info_flags(9)struct survey_info(9)struct cfg80211_crypto_settings(9)struct cfg80211_mbssid_config(9)struct cfg80211_mbssid_elems(9)struct cfg80211_rnr_elems(9)struct cfg80211_beacon_data(9)struct cfg80211_acl_data(9)struct cfg80211_fils_discovery(9)struct cfg80211_unsol_bcast_probe_resp(9)struct cfg80211_s1g_short_beacon(9)struct cfg80211_ap_settings(9)struct cfg80211_ap_update(9)struct cfg80211_csa_settings(9)struct cfg80211_color_change_settings(9)struct iface_combination_params(9)enum station_parameters_apply_mask(9)struct sta_txpwr(9)struct link_station_parameters(9)struct link_station_del_parameters(9)struct cfg80211_ttlm_params(9)struct station_parameters(9)struct station_del_parameters(9)enum cfg80211_station_type(9)cfg80211_check_station_change(9)enum rate_info_flags(9)enum rate_info_bw(9)struct rate_info(9)enum bss_param_flags(9)struct sta_bss_parameters(9)struct cfg80211_txq_stats(9)struct cfg80211_tid_stats(9)struct link_station_info(9)struct station_info(9)struct cfg80211_sar_sub_specs(9)struct cfg80211_sar_specs(9)struct cfg80211_sar_freq_ranges(9)struct cfg80211_sar_capa(9)cfg80211_get_station(9)enum monitor_flags(9)enum mpath_info_flags(9)struct mpath_info(9)enum wiphy_bss_param_flags(9)struct bss_parameters(9)struct mesh_config(9)struct mesh_setup(9)struct ocb_setup(9)struct ieee80211_txq_params(9)
π¦ Scanning and BSS list handling
scan request besties rise up π‘ this is where the BSS list lives, plus connect/deauth/disassoc requests and all the power-save stuff.
Scanning and BSS list handling(9)struct cfg80211_ssid(9)struct cfg80211_scan_info(9)struct cfg80211_scan_6ghz_params(9)struct cfg80211_scan_request(9)struct cfg80211_match_set(9)struct cfg80211_sched_scan_plan(9)struct cfg80211_bss_select_adjust(9)struct cfg80211_sched_scan_request(9)enum cfg80211_signal_type(9)struct cfg80211_inform_bss(9)struct cfg80211_bss_ies(9)struct cfg80211_bss(9)ieee80211_bss_get_elem(9)ieee80211_bss_get_ie(9)struct cfg80211_auth_request(9)struct cfg80211_assoc_link(9)struct cfg80211_ml_reconf_req(9)enum cfg80211_assoc_req_flags(9)struct cfg80211_assoc_request(9)struct cfg80211_deauth_request(9)struct cfg80211_disassoc_request(9)struct cfg80211_ibss_params(9)struct cfg80211_bss_selection(9)struct cfg80211_connect_params(9)enum cfg80211_connect_params_changed(9)enum wiphy_params_flags(9)struct cfg80211_pmksa(9)struct cfg80211_pkt_pattern(9)struct cfg80211_wowlan_tcp(9)struct cfg80211_wowlan(9)struct cfg80211_coalesce_rules(9)struct cfg80211_coalesce(9)struct cfg80211_wowlan_nd_match(9)struct cfg80211_wowlan_nd_info(9)struct cfg80211_wowlan_wakeup(9)struct cfg80211_gtk_rekey_data(9)struct cfg80211_update_ft_ies_params(9)struct cfg80211_mgmt_tx_params(9)struct cfg80211_dscp_exception(9)struct cfg80211_dscp_range(9)struct cfg80211_qos_map(9)
π Neighbor Awareness Networking (NAN)
NAN squad, this is your moment πΈ
Neighbor Awareness Networking (NAN)(9)struct cfg80211_nan_band_config(9)struct cfg80211_nan_conf(9)struct cfg80211_nan_channel(9)struct cfg80211_nan_local_sched(9)struct cfg80211_nan_peer_map(9)struct cfg80211_nan_peer_sched(9)enum cfg80211_nan_conf_changes(9)struct cfg80211_nan_func_filter(9)struct cfg80211_nan_func(9)struct cfg80211_pmk_conf(9)struct cfg80211_external_auth_params(9)struct cfg80211_ftm_responder_stats(9)struct cfg80211_pmsr_ftm_result(9)struct cfg80211_pmsr_result(9)struct cfg80211_pmsr_ftm_request_peer(9)struct cfg80211_pmsr_request_peer(9)struct cfg80211_pmsr_request(9)struct cfg80211_update_owe_info(9)struct mgmt_frame_regs(9)struct cfg80211_ops(9)enum wiphy_flags(9)struct ieee80211_iface_limit(9)struct ieee80211_iface_combination(9)enum wiphy_wowlan_support_flags(9)struct wiphy_wowlan_support(9)struct wiphy_coalesce_support(9)enum wiphy_vendor_command_flags(9)enum wiphy_opmode_flag(9)struct sta_opmode_info(9)struct wiphy_vendor_command(9)struct wiphy_iftype_ext_capab(9)cfg80211_get_iftype_ext_capa(9)struct cfg80211_pmsr_capabilities(9)struct wiphy_iftype_akm_suites(9)struct wiphy_radio_cfg(9)struct wiphy_radio_freq_range(9)struct wiphy_radio(9)enum wiphy_nan_flags(9)struct wiphy_nan_capa(9)struct wiphy(9)wiphy_priv(9)priv_to_wiphy(9)set_wiphy_dev(9)wiphy_dev(9)wiphy_name(9)wiphy_new_nm(9)wiphy_new(9)wiphy_register(9)rcu_dereference_wiphy(9)wiphy_dereference(9)get_wiphy_regdom(9)wiphy_unregister(9)wiphy_free(9)wiphy_lock(9)wiphy_unlock(9)wiphy_work_queue(9)wiphy_work_cancel(9)wiphy_work_flush(9)wiphy_delayed_work_queue(9)wiphy_delayed_work_cancel(9)wiphy_delayed_work_flush(9)wiphy_delayed_work_pending(9)wiphy_hrtimer_work_cancel(9)wiphy_hrtimer_work_flush(9)wiphy_hrtimer_work_pending(9)enum ieee80211_ap_reg_power(9)struct wireless_dev(9)wdev_priv(9)wdev_chandef(9)
bestie bestie bestie β see thosewiphy_hrtimer_work_cancel(9),wiphy_hrtimer_work_flush(9)andwiphy_hrtimer_work_pending(9)right there? Those are literally the siblings of the function this page is about. If you're here forwiphy_hrtimer_work_queue(9), you already know you need the whole little work-queue family π
β¨ Utility functions
The little helpers that just work. Channel math, header lengths, the everyday stuff π§
Utility functions(9)ieee80211_channel_equal(9)ieee80211_channel_to_khz(9)ieee80211_channel_to_freq_khz(9)ieee80211_channel_to_frequency(9)ieee80211_freq_khz_to_channel(9)ieee80211_frequency_to_channel(9)ieee80211_get_channel_khz(9)ieee80211_get_channel(9)cfg80211_channel_is_psc(9)ieee80211_radio_freq_range_valid(9)cfg80211_radio_chandef_valid(9)cfg80211_wdev_channel_allowed(9)ieee80211_get_response_rate(9)ieee80211_mandatory_rates(9)struct ieee80211_radiotap_iterator(9)ieee80211_get_hdrlen_from_skb(9)ieee80211_hdrlen(9)ieee80211_get_mesh_hdrlen(9)
π Data path helpers
packets packets packets π«Ά converting frames, finding IEs, defragmenting elements.
Data path helpers(9)ieee80211_data_to_8023_exthdr(9)ieee80211_data_to_8023(9)ieee80211_is_valid_amsdu(9)ieee80211_amsdu_to_8023s(9)ieee80211_get_8023_tunnel_proto(9)ieee80211_strip_8023_mesh_hdr(9)cfg80211_classify8021d(9)cfg80211_find_elem_match(9)cfg80211_find_ie_match(9)cfg80211_find_elem(9)cfg80211_find_ie(9)cfg80211_find_ext_elem(9)cfg80211_find_ext_ie(9)cfg80211_find_vendor_elem(9)cfg80211_find_vendor_ie(9)enum cfg80211_rnr_iter_ret(9)cfg80211_iter_rnr(9)cfg80211_defragment_element(9)cfg80211_send_layer2_update(9)
πΈ Regulatory enforcement infrastructure
the vibes must be legal β regulatory pages, custom regd, freq info.
Regulatory enforcement infrastructure(9)regulatory_hint(9)regulatory_set_wiphy_regd(9)regulatory_set_wiphy_regd_sync(9)wiphy_apply_custom_regulatory(9)freq_reg_info(9)reg_initiator_name(9)regulatory_pre_cac_allowed(9)Internal regulatory db functions(9)reg_query_regdb_wmm(9)cfg80211_scan_done(9)cfg80211_sched_scan_results(9)cfg80211_sched_scan_stopped(9)cfg80211_sched_scan_stopped_locked(9)cfg80211_inform_bss_frame_data(9)cfg80211_gen_new_bssid(9)cfg80211_is_element_inherited(9)cfg80211_merge_profile(9)enum cfg80211_bss_frame_type(9)cfg80211_get_ies_channel_number(9)cfg80211_ssid_eq(9)cfg80211_inform_bss_data(9)__cfg80211_get_bss(9)cfg80211_get_bss(9)cfg80211_ref_bss(9)cfg80211_put_bss(9)cfg80211_unlink_bss(9)cfg80211_bss_iter(9)cfg80211_rx_mlme_mgmt(9)cfg80211_auth_timeout(9)struct cfg80211_rx_assoc_resp_data(9)cfg80211_rx_assoc_resp(9)struct cfg80211_assoc_failure(9)cfg80211_assoc_failure(9)cfg80211_tx_mlme_mgmt(9)cfg80211_rx_unprot_mlme_mgmt(9)cfg80211_michael_mic_failure(9)cfg80211_ibss_joined(9)cfg80211_notify_new_peer_candidate(9)
π₯ RFkill integration
radios going on and off, respectfully.
RFkill integration(9)wiphy_rfkill_set_hw_state_reason(9)wiphy_rfkill_start_polling(9)wiphy_rfkill_stop_polling(9)
π Vendor commands
for the driver girlies doing their own thing π
Vendor commands(9)cfg80211_vendor_cmd_alloc_reply_skb(9)cfg80211_vendor_cmd_reply(9)cfg80211_vendor_cmd_get_sender(9)cfg80211_vendor_event_alloc(9)cfg80211_vendor_event_alloc_ucast(9)cfg80211_vendor_event(9)
β Test mode
testing era β¨
Test mode(9)cfg80211_testmode_alloc_reply_skb(9)cfg80211_testmode_reply(9)cfg80211_testmode_alloc_event_skb(9)cfg80211_testmode_event(9)struct cfg80211_fils_resp_params(9)struct cfg80211_connect_resp_params(9)cfg80211_connect_done(9)cfg80211_connect_bss(9)cfg80211_connect_result(9)cfg80211_connect_timeout(9)struct cfg80211_roam_info(9)cfg80211_roamed(9)cfg80211_port_authorized(9)cfg80211_disconnected(9)cfg80211_ready_on_channel(9)cfg80211_remain_on_channel_expired(9)cfg80211_tx_mgmt_expired(9)cfg80211_sinfo_alloc_tid_stats(9)cfg80211_link_sinfo_alloc_tid_stats(9)cfg80211_sinfo_release_content(9)cfg80211_new_sta(9)cfg80211_del_sta_sinfo(9)cfg80211_del_sta(9)cfg80211_conn_failed(9)struct cfg80211_rx_info(9)cfg80211_rx_mgmt_ext(9)cfg80211_rx_mgmt_khz(9)cfg80211_rx_mgmt(9)struct cfg80211_tx_status(9)cfg80211_mgmt_tx_status_ext(9)cfg80211_mgmt_tx_status(9)cfg80211_control_port_tx_status(9)cfg80211_rx_control_port(9)cfg80211_cqm_rssi_notify(9)cfg80211_cqm_pktloss_notify(9)cfg80211_cqm_txe_notify(9)cfg80211_cqm_beacon_loss_notify(9)__cfg80211_radar_event(9)cfg80211_sta_opmode_change_notify(9)cfg80211_cac_event(9)cfg80211_background_cac_abort(9)cfg80211_gtk_rekey_notify(9)cfg80211_pmksa_candidate_notify(9)cfg80211_rx_spurious_frame(9)cfg80211_rx_unexpected_4addr_frame(9)cfg80211_probe_status(9)cfg80211_report_obss_beacon_khz(9)cfg80211_report_obss_beacon(9)struct cfg80211_beaconing_check_config(9)
and that's the whole roster π genuinely every one of these is in the original list, i counted, don't @ me β not me actually counting though π (and yes, there's more page coming, stay with me π)
okay so the SEE ALSO list did not stop, bestie. She's still going, and honestly? Respect. Genuinely the cross-reference section has main character energy π
cfg80211_reg_check_beaconing(9)cfg80211_reg_can_beacon(9)cfg80211_reg_can_beacon_relax(9)cfg80211_ch_switch_notify(9)cfg80211_ch_switch_started_notify(9)ieee80211_operating_class_to_band(9)ieee80211_operating_class_to_chandef(9)ieee80211_chandef_to_operating_class(9)ieee80211_chandef_to_khz(9)cfg80211_tdls_oper_request(9)cfg80211_calculate_bitrate(9)
still with me? good. hydrate. we're barely halfway π«Ά
cfg80211_unregister_wdev(9)cfg80211_register_netdevice(9)cfg80211_unregister_netdevice(9)struct cfg80211_ft_event_params(9)cfg80211_ft_event(9)cfg80211_get_p2p_attr(9)ieee80211_ie_split_ric(9)ieee80211_ie_split(9)ieee80211_fragment_element(9)cfg80211_report_wowlan_wakeup(9)cfg80211_crit_proto_stopped(9)ieee80211_get_num_supported_channels(9)
okay and now we're in the channel/link-management girlie era of the list πΈ
cfg80211_check_combinations(9)cfg80211_iter_combinations(9)cfg80211_get_radio_idx_by_chan(9)cfg80211_stop_link(9)cfg80211_stop_iface(9)cfg80211_shutdown_all_interfaces(9)wiphy_ext_feature_set(9)wiphy_ext_feature_isset(9)
heads up bestie: cfg80211_shutdown_all_interfaces(9) is right there in the list and the name is not subtle. read that one before you get ideas π
cfg80211_free_nan_func(9)struct cfg80211_nan_match_params(9)cfg80211_nan_match(9)cfg80211_nan_func_terminated(9)cfg80211_nan_sched_update_done(9)cfg80211_external_auth_request(9)cfg80211_pmsr_report(9)cfg80211_pmsr_complete(9)
the NAN and PMSR girlies are so real for this β¨
cfg80211_iftype_allowed(9)cfg80211_assoc_comeback(9)cfg80211_update_owe_info_event(9)cfg80211_bss_flush(9)
colour-change arc, let's go π
cfg80211_bss_color_notify(9)cfg80211_obss_color_collision_notify(9)cfg80211_color_change_started_notify(9)cfg80211_color_change_aborted_notify(9)cfg80211_color_change_notify(9)cfg80211_6ghz_power_type(9)
6 GHz representation, we love to see it β
cfg80211_links_removed(9)struct cfg80211_mlo_reconf_done_data(9)cfg80211_mlo_reconf_add_done(9)cfg80211_schedule_channels_check(9)cfg80211_epcs_changed(9)cfg80211_next_nan_dw_notif(9)cfg80211_nan_cluster_joined(9)cfg80211_nan_ulw_update(9)cfg80211_nan_channel_evac(9)
final stretch, we're so close, don't scroll away on me now π
wiphy_locked_debugfs_read(9)wiphy_locked_debugfs_write(9)cfg80211_s1g_get_start_freq_khz(9)cfg80211_s1g_get_end_freq_khz(9)cfg80211_s1g_get_primary_sibling(9)cfg80211_incumbent_signal_notify(9)
that's the whole list, no cap, every single one accounted for π
and that's a wrap on the whole page, bestie π this one lives in ./include/net, it's dated October 2026, and it's the man page for wiphy_hrtimer_work_queue(9) β arguably the most iconic work-queue-in-a-hrtimer of our generation. go read the actual functions, slay, and bye bestie ππ
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