STRUCT CFG80211_SAR_SUB_SPECS(9)
โจ struct cfg80211_sar_sub_specs(9) โจ
okay so this is from the Kernel API Manual (section 9, the kernel-functions girlies ๐ซถ) and it's literally all about sub specs limits โ that's the NAME section bestie, struct cfg80211_sar_sub_specs - sub specs limit ๐
๐ธ SYNOPSIS ๐ธ
the struct itself, no cap, exactly like this:
struct cfg80211_sar_sub_specs {
s32 power;
u32 freq_range_index;
};
like, that's it, that's the whole vibe ๐
๐ Members ๐
okay so these are the two members and you're gonna want to know both, iykyk:
powerโ the power limitation, and it's measured in0.25dbmโก (yes, quarter-dBm, don't @ me, that's just what it is)freq_range_indexโ the index that the power limitation applies to ๐ (so like, which freq range thepowervalue is talking about, fr fr)
lowkey a tiny struct but highkey important, bestie ๐ more parts coming, don't go anywhere ๐ฆ
โจ SEE ALSO โจ
okay bestie, this section is literally the group chat of cross-references ๐
โ it's a whole squad of (9) pages, all hanging out in the kernel file ./include/net/cfg80211.h. If you're the type to open every link on a wiki at 3am, this is your main character moment. Grab a snack, there's a lot of them. ๐
- Kernel file โ
./include/net/cfg80211.h - the intro bits โ
Introduction(9),Device registration(9) - channels, rates & bss types โ
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) - caps & capability soup (ht โ vht โ he โ eht โ uhr, the whole glow-up) โ
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) - bands & iftype data โ
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, aka the "make it do stuff" zone โ
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) - chandef helpers, the whole iconic lineup โ
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) - survey + crypto + mbssid/rnr/beacon stuff โ
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 & all their little stats โ
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_specs(9),struct cfg80211_sar_freq_ranges(9),struct cfg80211_sar_capa(9),cfg80211_get_station(9) - monitor / mpath / bss params / mesh / ocb / txq โ
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, the scrolling arc โ
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) - auth / assoc / deauth / disassoc โ the connect drama โ
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) - wowlan & coalesce & packet patterns (the sleepy-time saga) โ
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, the neighbor-awareness era ๐ซ โ
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) - pmk / external auth / ftm / pmsr / owe โ
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 & wiphy furniture โ
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 & friends, the backstage crew โ
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, the little helpers that ate โ
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 (skb girlies rise) โ
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) - element/IE hunting, the finder squad โ
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 (respectfully, the law) โ
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 โ
Internal regulatory db functions(9),reg_query_regdb_wmm(9) - scan/BSS notification goodies โ
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) - mlme mgmt events & friends โ
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) - RFkill integration โ
RFkill integration(9),wiphy_rfkill_set_hw_state_reason(9),wiphy_rfkill_start_polling(9),wiphy_rfkill_stop_polling(9) - vendor commands (the brand deals) โ
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 โ
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 notifications โ
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) - station in/out & sinfo housekeeping โ
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) - rx/tx mgmt & control port โ
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) - cqm, radar, cac & other "heads up" notifiers โ
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), cfg80211_reg_check_beaconing(9)โ the beaconing-check one ๐ธcfg80211_reg_can_beacon(9)โ can we beacon? regulatory says maybe ๐cfg80211_reg_can_beacon_relax(9)โ same question but chill mode โจcfg80211_ch_switch_notify(9)โ channel switch announcement, go tell everyone ๐ขcfg80211_ch_switch_started_notify(9)โ and this one's the "we literally started" version ๐ฅieee80211_operating_class_to_band(9)โ operating class โก๏ธ band, the conversion arc ๐ซieee80211_operating_class_to_chandef(9)โ operating class โก๏ธchandef, same energy ๐ieee80211_chandef_to_operating_class(9)โ and the reverse, because we're nothing if not thorough ๐ieee80211_chandef_to_khz(9)โ turn thatchandefinto kHz, math girlies rise ๐งฎcfg80211_tdls_oper_request(9)โ TDLS operation request, very niche, very iconic ๐cfg80211_calculate_bitrate(9)โ bitrate math, no cap the numbers are numbering ๐cfg80211_unregister_wdev(9)โ bye bye wireless device registration ๐ฆcfg80211_register_netdevice(9)โ and hello to registering a netdevice ๐ซถcfg80211_unregister_netdevice(9)โ plus the unregister twin, periodt ๐struct cfg80211_ft_event_params(9)โ a whole struct for FT event params, she's a main character ๐cfg80211_ft_event(9)โ the FT event itself, obviously ๐cfg80211_get_p2p_attr(9)โ grab that P2P attribute bestie ๐ieee80211_ie_split_ric(9)โ IE splitting, but with RIC in the mix โจieee80211_ie_split(9)โ the plain vanilla IE split, still slay ๐ธieee80211_fragment_element(9)โ fragmenting an element, tiny pieces, cute ๐งcfg80211_report_wowlan_wakeup(9)โ wake-on-WLAN woke up and is reporting for duty โ๏ธcfg80211_crit_proto_stopped(9)โ critical protocol stopped, moment of silence ๐ญieee80211_get_num_supported_channels(9)โ how many channels? this one knows ๐ขcfg80211_check_combinations(9)โ checking those interface combinations, very responsible ๐cfg80211_iter_combinations(9)โ same combo energy but iterator style ๐cfg80211_get_radio_idx_by_chan(9)โ find the radio index from a channel, iykyk ๐ปcfg80211_stop_link(9)โ stopping a link, we hate to see her go ๐cfg80211_stop_iface(9)โ stopping an interface, also sad hours ๐ฅฒcfg80211_shutdown_all_interfaces(9)โ all of them. every single one. goodbye ๐ญwiphy_ext_feature_set(9)โ set an extended feature flag, plant that flag ๐ฉwiphy_ext_feature_isset(9)โ and check if it's set, vibe check ๐ต๏ธcfg80211_free_nan_func(9)โ freeing a NAN function, release her ๐ฆstruct cfg80211_nan_match_params(9)โ struct for NAN match params, struct girlies stand up ๐cfg80211_nan_match(9)โ it's a NAN match! โจcfg80211_nan_func_terminated(9)โ NAN function terminated, rip to that one ๐cfg80211_nan_sched_update_done(9)โ NAN schedule update finished, we love a completion ๐ซถcfg80211_external_auth_request(9)โ external auth request incoming ๐จcfg80211_pmsr_report(9)โ PMSR report, very path-measurement of her ๐cfg80211_pmsr_complete(9)โ and PMSR complete, we're done here ๐cfg80211_iftype_allowed(9)โ is this interface type allowed? let's find out ๐ธcfg80211_assoc_comeback(9)โ assoc comeback, she literally came back ๐ซถcfg80211_update_owe_info_event(9)โ OWE info update event, secure and serving ๐cfg80211_bss_flush(9)โ flush the BSS list, clean slate energy ๐งผcfg80211_bss_color_notify(9)โ BSS color notify, colors are literally a thing ๐จcfg80211_obss_color_collision_notify(9)โ OBSS color collision!! drama!! ๐ฑcfg80211_color_change_started_notify(9)โ color change started, it's happening ๐ฆcfg80211_color_change_aborted_notify(9)โ color change aborted, never mind ๐ญcfg80211_color_change_notify(9)โ color change notify, the plain one, still cute ๐cfg80211_6ghz_power_type(9)โ 6 GHz power type, highkey relevant โกcfg80211_links_removed(9)โ links removed, we lost some ๐struct cfg80211_mlo_reconf_done_data(9)โ struct for MLO reconfig done data, MLO girlies rise ๐cfg80211_mlo_reconf_add_done(9)โ MLO reconfig add done, add complete periodt โจcfg80211_schedule_channels_check(9)โ schedule a channels check, future-you says thanks ๐๏ธcfg80211_epcs_changed(9)โ EPCS changed, noted bestie ๐cfg80211_next_nan_dw_notif(9)โ next NAN DW notification, coming right up ๐cfg80211_nan_cluster_joined(9)โ NAN cluster joined, welcome to the group chat ๐ซถcfg80211_nan_ulw_update(9)โ NAN ULW update, updated and slaying ๐cfg80211_nan_channel_evac(9)โ NAN channel evacuation, everybody out ๐wiphy_locked_debugfs_read(9)โ debugfs read but locked, safety first ๐wiphy_locked_debugfs_write(9)โ debugfs write but locked, same rule ๐cfg80211_s1g_get_start_freq_khz(9)โ S1G start freq in kHz, get it ๐กcfg80211_s1g_get_end_freq_khz(9)โ S1G end freq in kHz, got it ๐กcfg80211_s1g_get_primary_sibling(9)โ S1G primary sibling, family reunion ๐ฏcfg80211_incumbent_signal_notify(9)โ incumbent signal notify, she's back ๐ค
And that's the whole list, bestie โ sixty-four entries, not one skipped, we ate and left zero crumbs ๐ โจ
Okay so that's genuinely the entire page done ๐ You now know every single one of these cross-references better than the kernel devs who wrote them, and honestly? That's iconic. Go forth and grep with confidence, bestie ๐๐
Sign-off time ๐ซถ โ this little masterpiece lives in ./include/net, and it's dated October 2026, so it's literally a future classic. See you in the next man page, mwah ๐๐ธ
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