RFKILL INTEGRATION(9)
๐ RFkill integration ๐
okay so bestie, welcome to the RFkill integration page from the Kernel API Manual โ that's the RFkill integration(9) one, and it's giving โshort but iconicโ energy. ๐
RFkill integration in cfg80211 is almost invisible to drivers, and honestly? slay. No cap โ cfg80211 automatically registers an rfkill instance for every wireless device it knows about. Soft kill is also translated into disconnecting and turning all interfaces off. Drivers are expected to turn off the device when all interfaces are down. periodt. ๐
But not every device is that easy โ some may have a hard RFkill line, and in that case they also need to interact with the rfkill subsystem, via cfg80211. They can do this with a few helper functions documented here. that's the tea for part one, and those helper functions are literally where the main character energy kicks in โจ
๐ SEE ALSO ๐
okay bestie, brace yourself, because this SEE ALSO is not a little snack โ it's a whole buffet ๐ญ the rfkill page links out to basically the entire cfg80211/802.11 universe, and I'm not skipping a single one. Every last reference is down here, grouped so your brain doesn't melt. Buckle in ๐
- Kernel file
./include/net/cfg80211.hโ the actual home base, plusIntroduction(9)andDevice registration(9)๐
the channel / rate / BSS-type fundamentals โจ
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)
capability structs, one per flavor of Wi-Fi, no cap ๐
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)
band + iftype data, the whole set ๐ฆ
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)
actions & configuration era ๐
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)
the chandef extended cinematic universe ๐ (this one's long, hydrate first)
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)
AP-mode glow-up material ๐
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)
stations, links, rates, and the stats pile ๐ซถ
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)
scanning & BSS list handling, iykyk โจ
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)
wiphy params, PMKSA, and the whole wowlan/coalesce corner ๐ธ
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)
NAN, PMSR, external auth โ the niche icons ๐
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)
the ops table + wiphy flags + iface combos, main character energy fr ๐
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 lifecycle: priv, dev, register, locks, and all the work-queue girlies ๐ง
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_queue(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)
Utility functions โจ (channel math, rates, header lengths, all the little helpers)
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)
Data path helpers ๐ฆ (conversions, AMSDU, element finding, RNR)
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)
Regulatory enforcement infrastructure ๐ (+ the internal regdb stuff)
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)
scan done / BSS inform / get-put-ref / assoc-failure notification squad ๐ซถ
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)
and these three are literally the rfkill icons of this very page, periodt ๐๐
Vendor commands ๐
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)
Test mode ๐
Test mode(9),cfg80211_testmode_alloc_reply_skb(9),cfg80211_testmode_reply(9),cfg80211_testmode_alloc_event_skb(9),cfg80211_testmode_event(9)
connect / roam / disconnect + the notification flood, no cap ๐
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)
okay bestie, final part, and it's literally just the rest of the cross-references โ the whole extended cinematic universe ๐
. No new concepts, no new behaviour, just go read these next, they're all (9) so they live in the same kernel-doc galaxy ๐
cfg80211_reg_check_beaconing(9)โ go say hi ๐ซถcfg80211_reg_can_beacon(9)โ the can-we-beacon one, iykykcfg80211_reg_can_beacon_relax(9)โ the same vibe but โจrelaxedโจcfg80211_ch_switch_notify(9)โ channel switch, but telling people about itcfg80211_ch_switch_started_notify(9)โ and the "we started" version ๐ซieee80211_operating_class_to_band(9)โ converting, slayieee80211_operating_class_to_chandef(9)โ converting again, even slay-erieee80211_chandef_to_operating_class(9)โ and back the other way ๐ieee80211_chandef_to_khz(9)โ numbers to numbers, iconiccfg80211_tdls_oper_request(9)โ TDLS business ๐cfg80211_calculate_bitrate(9)โ math, but make it wifi ๐งฎcfg80211_unregister_wdev(9)โ the un-registering trio starts herecfg80211_register_netdevice(9)โ register era ๐cfg80211_unregister_netdevice(9)โ unregister era ๐struct cfg80211_ft_event_params(9)โ a struct! she's a struct ๐ฆcfg80211_ft_event(9)โ FT event, no capcfg80211_get_p2p_attr(9)โ P2P attribute fetchingieee80211_ie_split_ric(9)โ splitting IEs, with RIC ๐ieee80211_ie_split(9)โ splitting IEs, the original recipeieee80211_fragment_element(9)โ fragmenting, obviouslycfg80211_report_wowlan_wakeup(9)โ wowlan wakeup reporting, main character energy โญcfg80211_crit_proto_stopped(9)โ critical protocol stopped, ripieee80211_get_num_supported_channels(9)โ counting channels ๐ขcfg80211_check_combinations(9)โ combo checkingcfg80211_iter_combinations(9)โ combo iteratingcfg80211_get_radio_idx_by_chan(9)โ channel โ radio indexcfg80211_stop_link(9)โ stop that linkcfg80211_stop_iface(9)โ stop that ifacecfg80211_shutdown_all_interfaces(9)โ stop everything ๐ญ dramatic but validwiphy_ext_feature_set(9)โ set the ext featurewiphy_ext_feature_isset(9)โ check the ext featurecfg80211_free_nan_func(9)โ the NAN girlies start here ๐struct cfg80211_nan_match_params(9)โ another struct, another queencfg80211_nan_match(9)โ NAN matchcfg80211_nan_func_terminated(9)โ NAN function terminatedcfg80211_nan_sched_update_done(9)โ NAN sched update donecfg80211_external_auth_request(9)โ external auth, requestingcfg80211_pmsr_report(9)โ PMSR reporting ๐ธcfg80211_pmsr_complete(9)โ PMSR completingcfg80211_iftype_allowed(9)โ is this iftype allowed? vibe check โcfg80211_assoc_comeback(9)โ assoc comeback, literallycfg80211_update_owe_info_event(9)โ OWE info event, updatingcfg80211_bss_flush(9)โ flush the BSS ๐ฟcfg80211_bss_color_notify(9)โ colour notify ๐จcfg80211_obss_color_collision_notify(9)โ OBSS colour collision, notifycfg80211_color_change_started_notify(9)โ colour change started ๐cfg80211_color_change_aborted_notify(9)โ colour change aborted ๐cfg80211_color_change_notify(9)โ colour change, plain and simplecfg80211_6ghz_power_type(9)โ 6GHz power type, spicy ๐ถ๏ธcfg80211_links_removed(9)โ links removed, gone girlstruct cfg80211_mlo_reconf_done_data(9)โ MLO reconf done data, as a structcfg80211_mlo_reconf_add_done(9)โ MLO reconf add donecfg80211_schedule_channels_check(9)โ schedule that channels check ๐๏ธcfg80211_epcs_changed(9)โ EPCS changedcfg80211_next_nan_dw_notif(9)โ back to NAN, we never left tbhcfg80211_nan_cluster_joined(9)โ NAN cluster joined ๐ซถcfg80211_nan_ulw_update(9)โ NAN ULW updatecfg80211_nan_channel_evac(9)โ NAN channel evac, evacuate bestie ๐โโ๏ธwiphy_locked_debugfs_read(9)โ locked debugfs, readingwiphy_locked_debugfs_write(9)โ locked debugfs, writing โ๏ธcfg80211_s1g_get_start_freq_khz(9)โ S1G start freq, in kHzcfg80211_s1g_get_end_freq_khz(9)โ S1G end freq, in kHzcfg80211_s1g_get_primary_sibling(9)โ primary sibling, family vibes ๐ฏcfg80211_incumbent_signal_notify(9)โ and the grand finale: incumbent signal notify ๐ฅ
and that's the whole page, bestie, we ate ๐ฝ๏ธ๐ every single one of these lives in ./include/net with a date of October 2026, and the page itself is RFkill integration(9) โ ngl, iconic name, would read again. slay, go unix, bye ๐ฆโจ๐
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