STRUCT CFG80211_COLOR_CHANGE_SETTINGS(9)
struct cfg80211_color_change_settings(9) โ Kernel API Manual ๐ซถ
okay so bestie, this is the Kernel API Manual entry for the struct that handles color change settings โ yes, we're doing kernel struct lore today and it's lowkey iconic ๐
โจ NAME โจ
struct cfg80211_color_change_settings โ color change settings ๐
โจ SYNOPSIS โจ
struct cfg80211_color_change_settings {
struct cfg80211_beacon_data beacon_color_change;
u16 counter_offset_beacon;
u16 counter_offset_presp;
struct cfg80211_beacon_data beacon_next;
struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp;
u8 count;
u8 color;
u8 link_id;
};
๐ฏ Members ๐ฏ
beacon_color_changeโ the beacon data while the color countdown is doing its thing โจcounter_offset_beaconโ the offsets of the counters inside the beacon (tail), no cap ๐counter_offset_prespโ the offsets of the counters inside the probe response ๐beacon_nextโ beacon data that gets used after the color change, main character energy ๐ฅunsol_bcast_probe_respโ Unsolicited broadcast probe response parameters, periodt ๐countโ number of beacons until the color change ๐colorโ the color used after the change ๐link_idโ defines the link on which color change is expected during MLO.0in case of non-MLO. ๐ฆ
๐ Description ๐
Used for bss color change. That's the whole vibe check, bestie ๐
๐ซ SEE ALSO ๐ซ
okay bestie, this is the part where the page introduces you to literally everyone at the function party ๐ no gatekeeping here, the whole friend group gets a name-tag, and yes we're listing all of them, every single one, because that's just the kind of page this is. grab a snack. ๐
๐ธ the source of truth
- Kernel file
./include/net/cfg80211.hโ the actual header where all of this lives, the origin story, the blueprint ๐ Introduction(9)Device registration(9)
๐ฆ bands, channels, rates & caps
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)
๐ actions and configuration (the big one, she's popular)
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)
โจ the chandef girlies
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)
๐ beacons, crypto, BSSID stuff
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 iface_combination_params(9)
๐ซถ stations, links & txpower
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)
๐ SAR, mesh, OCB, txq
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)
๐ง scanning and BSS list handling
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)
๐ฆ NAN & friends (yes it's giving niche and we love her)
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)
๐ auth, PMK & ranging
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)
๐ the wiphy extended universe
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)
โญ priv, dev & name
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)
๐ฅ locks & work queueing (the scheduling squad)
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_queue(9)wiphy_hrtimer_work_cancel(9)wiphy_hrtimer_work_flush(9)wiphy_hrtimer_work_pending(9)enum ieee80211_ap_reg_power(9)
๐ wireless_dev, the little trio
struct wireless_dev(9)wdev_priv(9)wdev_chandef(9)
๐ธ utility functions (the math girlies)
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)
๐ฆ data path helpers
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)
๐ element hunting (finders keepers)
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)
๐ regulatory enforcement infrastructure
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)
๐ง internal regulatory db functions
Internal regulatory db functions(9)reg_query_regdb_wmm(9)
๐ซถ scan / BSS reporting & mlme callbacks
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)
๐ RFkill integration
RFkill integration(9)wiphy_rfkill_set_hw_state_reason(9)wiphy_rfkill_start_polling(9)wiphy_rfkill_stop_polling(9)
โญ vendor commands (iykyk)
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)
๐ test mode
Test mode(9)cfg80211_testmode_alloc_reply_skb(9)cfg80211_testmode_reply(9)cfg80211_testmode_alloc_event_skb(9)cfg80211_testmode_event(9)
๐ connect / roam / mgmt / cqm โ the notify girlies
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 literally the whole friend group ๐ซถ every single name-tag accounted for, no one left on read ๐
okay bestie, real talk: the SEE ALSO section of this page is not a snack, it's a whole meal ๐ like the kernel devs really said "here's every friend we know" and dumped the entire group chat. no cap, we're listing all of them, because missing one would be a crime and we don't do crimes here โจ
so grab ur lil iced coffee ๐ and scroll, because every single one of these is getting its moment:
cfg80211_reg_check_beaconing(9)โ bestie, go read her ๐cfg80211_reg_can_beacon(9)โ the beaconing vibes check, iconiccfg80211_reg_can_beacon_relax(9)โ same energy, chiller attitudecfg80211_ch_switch_notify(9)โ channel switch gossip, she tells everyonecfg80211_ch_switch_started_notify(9)โ the "we're so back" announcementieee80211_operating_class_to_band(9)โ translation queen ๐ieee80211_operating_class_to_chandef(9)โ also a translator, also slayingieee80211_chandef_to_operating_class(9)โ the reverse trip, she does bothieee80211_chandef_to_khz(9)โ math girlie, lowkey obsessed with hercfg80211_tdls_oper_request(9)โ TDLS business, very serious, very demurecfg80211_calculate_bitrate(9)โ crunching numbers so u don't have to ๐งฎcfg80211_unregister_wdev(9)โ the goodbye eracfg80211_register_netdevice(9)โ and the hello era ๐ฆcfg80211_unregister_netdevice(9)โ another goodbye, it's giving bittersweetstruct cfg80211_ft_event_params(9)โ a struct!! a whole struct!! ๐cfg80211_ft_event(9)โ the fast-transition event itselfcfg80211_get_p2p_attr(9)โ fetching P2P attributes like a lil errand runnerieee80211_ie_split_ric(9)โ splitting IEs, RIC flavored ๐ieee80211_ie_split(9)โ splitting IEs, the original recipeieee80211_fragment_element(9)โ chopping elements into bits, arts and crafts time โ๏ธcfg80211_report_wowlan_wakeup(9)โ WoWLAN wakeup report, sleepy queen waking up ๐ญcfg80211_crit_proto_stopped(9)โ critical protocol said "that's a wrap"ieee80211_get_num_supported_channels(9)โ counting channels, she's good at her jobcfg80211_check_combinations(9)โ the compatibility check, no capcfg80211_iter_combinations(9)โ the same but in a loop, main character energy ๐cfg80211_get_radio_idx_by_chan(9)โ finding the radio by channel, lil detective ๐cfg80211_stop_link(9)โ stopping a link, respectfullycfg80211_stop_iface(9)โ stopping an interface, also respectfullycfg80211_shutdown_all_interfaces(9)โ the big "everybody out" moment ๐wiphy_ext_feature_set(9)โ setting an extended feature, king behavior ๐wiphy_ext_feature_isset(9)โ asking if it's set, nosy but validcfg80211_free_nan_func(9)โ freeing NAN functions, cleanup era ๐งนstruct cfg80211_nan_match_params(9)โ another struct!! we love a structcfg80211_nan_match(9)โ NAN match, she found her person ๐ซถcfg80211_nan_func_terminated(9)โ the NAN function finished, periodtcfg80211_nan_sched_update_done(9)โ schedule update done, slaycfg80211_external_auth_request(9)โ external auth ask, very "can u do me a favor"cfg80211_pmsr_report(9)โ PMSR report, data delivery ๐cfg80211_pmsr_complete(9)โ PMSR complete, the finale ๐ฌcfg80211_iftype_allowed(9)โ is this iftype allowed? the vibe checkcfg80211_assoc_comeback(9)โ the comeback era, literallycfg80211_update_owe_info_event(9)โ OWE info update, keeping u informedcfg80211_bss_flush(9)โ flushing BSS entries, out with the old โจcfg80211_bss_color_notify(9)โ BSS color notification, aesthetic alert ๐จcfg80211_obss_color_collision_notify(9)โ collision!! dramatic, love that for uscfg80211_color_change_started_notify(9)โ color change is a go, we're doing thiscfg80211_color_change_aborted_notify(9)โ nvm we're not, abort era ๐ญcfg80211_color_change_notify(9)โ the actual color change announcement, the star of the show โญcfg80211_6ghz_power_type(9)โ 6 GHz power type, very new, very freshcfg80211_links_removed(9)โ links got removed, sad girl hoursstruct cfg80211_mlo_reconf_done_data(9)โ MLO reconfig data, struct royalty ๐cfg80211_mlo_reconf_add_done(9)โ MLO reconfig add is done, we cheercfg80211_schedule_channels_check(9)โ scheduling a channel check, proactive queencfg80211_epcs_changed(9)โ EPCS changed, noted ๐cfg80211_next_nan_dw_notif(9)โ next NAN DW notification, coming right upcfg80211_nan_cluster_joined(9)โ joined the NAN cluster, she's in her group chat era ๐ซcfg80211_nan_ulw_update(9)โ NAN ULW update, niche but iconiccfg80211_nan_channel_evac(9)โ NAN channel evacuation, everybody move โผ๏ธwiphy_locked_debugfs_read(9)โ debugfs read, but with the lock held ๐wiphy_locked_debugfs_write(9)โ debugfs write, also locked, stay safe bestiecfg80211_s1g_get_start_freq_khz(9)โ S1G start freq in kHz, precision girliecfg80211_s1g_get_end_freq_khz(9)โ S1G end freq in kHz, also precisecfg80211_s1g_get_primary_sibling(9)โ finding the primary sibling, family reunion ๐ซถcfg80211_incumbent_signal_notify(9)โ incumbent signal notification, and that's the last one!!
ngl, that's sixty-five whole references. the manpage said "see also" and meant "see everything". respect tho ๐
and that's a wrap on this whole page, bestie!! ๐ this edition came out of ./include/net and it's dated October 2026, filed under struct cfg8...nge_settings(9) โ yes the title is still chopped in the header and yes we're choosing to find that charming. go forth, read your kernels, and remember: colors change, but the documentation stays iconic ๐
โจ๐ฆ
๐ฆ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- ๐ girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms