cfg80211_get_chandef_type(9)
✨ cfg80211_get_chandef_type — Kernel API Manual ✨
okay so bestie, welcome to cfg80211_get_chandef_type(9), a kernel API manual page, and honestly it's a short one so we can totally get through it together 💖
🎀 NAME 🎀
cfg80211_get_chandef_type — return old channel type from chandef
like, it takes your fancy new-ish channel definition and gives you back the old channel type. a little throwback moment, we love an icon that respects its roots 💅
✨ SYNOPSIS ✨
enum nl80211_channel_type cfg80211_get_chandef_type (const struct
cfg80211_chan_def *chandef );that's the whole signature, no cap. takes one const struct cfg80211_chan_def * and hands you back an enum nl80211_channel_type. 🦋
🌸 ARGUMENTS 🌸
chandef— the channel definition. yeah that's it, that's the whole parameter list. she's lowkey a one-argument queen 👑
⭐ RETURN ⭐
it returns the old channel type — NOHT, HT20, or HT40+/- — derived from whatever chandef you passed in fr fr.
⚠️ but listen, important vibe check: the chandef you give it must have a bandwidth that allows this conversion. if it doesn't, that's not a slay, that's a problem. 🫶
and that's where part 1 wraps… except no it doesn't, because there's more coming 🌈
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(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)Structural 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)RFkill integration(9)·wiphy_rfkill_set_hw_state_reason(9)·wiphy_rfkill_start_polling(9)·wiphy_rfkill_stop_polling(9)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(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)
...okay so the SEE ALSO section did not stop, she's still going, and honestly? iconic of her 💅 here's the whole rest of the squad, in order, nothing skipped, no cap:
cfg80211_reg_check_beaconing(9)— reg-check era 🎀cfg80211_reg_can_beacon(9)— "can she beacon tho" ✨cfg80211_reg_can_beacon_relax(9)— same question, relaxed vibes 😌cfg80211_ch_switch_notify(9)— channel switch notif, bestie 📣cfg80211_ch_switch_started_notify(9)— and the "we literally started" version 🏁ieee80211_operating_class_to_band(9)— converting things 🦋ieee80211_operating_class_to_chandef(9)— converting into a chandef this time 🌸ieee80211_chandef_to_operating_class(9)— she does the reverse too, main character 👑ieee80211_chandef_to_khz(9)— and in kHz, numbers girlie 💜cfg80211_tdls_oper_request(9)— TDLS request, noted 🫶cfg80211_calculate_bitrate(9)— math moment ✨cfg80211_unregister_wdev(9)— unregistering awdev, respectfully 💅cfg80211_register_netdevice(9)— netdevice goes on the roster 🎀cfg80211_unregister_netdevice(9)— and off the roster 😭struct cfg80211_ft_event_params(9)— a whole struct, she's got structure 🔥cfg80211_ft_event(9)— the FT event itself ⭐cfg80211_get_p2p_attr(9)— getting that P2P attribute, iykyk 🙈ieee80211_ie_split_ric(9)— IE splitting, RIC flavour 🍓ieee80211_ie_split(9)— IE splitting, classic flavour 🧚ieee80211_fragment_element(9)— fragmenting an element, go off 💀cfg80211_report_wowlan_wakeup(9)— WoWLAN wakeup reporting, sleepy queen 😴cfg80211_crit_proto_stopped(9)— critical proto stopped, dramatic 💅ieee80211_get_num_supported_channels(9)— counting supported channels 🔢cfg80211_check_combinations(9)— checking combinations, very thorough 🌈cfg80211_iter_combinations(9)— iterating them, one by one 🦋cfg80211_get_radio_idx_by_chan(9)— radio index, by channel, periodt 👑cfg80211_stop_link(9)— stopping a link, kindly ✋cfg80211_stop_iface(9)— stopping an iface, also kindly ✋cfg80211_shutdown_all_interfaces(9)— ALL of them?? yes bestie, all 🌸wiphy_ext_feature_set(9)— ext feature, set 💖wiphy_ext_feature_isset(9)— ext feature, is it set 🎀cfg80211_free_nan_func(9)— freeing NAN stuff 🫧struct cfg80211_nan_match_params(9)— another struct, we love her 💜cfg80211_nan_match(9)— NAN match, slay ✨cfg80211_nan_func_terminated(9)— NAN func said bye 😭cfg80211_nan_sched_update_done(9)— NAN sched update, done ✅cfg80211_external_auth_request(9)— external auth request, iconic 🔥cfg80211_pmsr_report(9)— PMSR report 📄cfg80211_pmsr_complete(9)— PMSR complete, mwah 💋cfg80211_iftype_allowed(9)— iftype, allowed or not 🌸cfg80211_assoc_comeback(9)— assoc comeback, she's back 👑cfg80211_update_owe_info_event(9)— OWE info event update 🌈cfg80211_bss_flush(9)— flush that BSS 🚿cfg80211_bss_color_notify(9)— BSS color notif, aesthetic 🎨cfg80211_obss_color_collision_notify(9)— OBSS color collision, drama 💀cfg80211_color_change_started_notify(9)— color change started 🏁cfg80211_color_change_aborted_notify(9)— color change aborted, oop 😬cfg80211_color_change_notify(9)— color change, notif 🦋cfg80211_6ghz_power_type(9)— 6 GHz power type, highkey ⚡cfg80211_links_removed(9)— links removed, gone girl 💔struct cfg80211_mlo_reconf_done_data(9)— MLO reconf data, struct era 💜cfg80211_mlo_reconf_add_done(9)— MLO reconf add, done ✅cfg80211_schedule_channels_check(9)— schedule that channels check 🗓️cfg80211_epcs_changed(9)— EPCS changed, noted 📝cfg80211_next_nan_dw_notif(9)— NAN again!! she's everywhere 🧚cfg80211_nan_cluster_joined(9)— NAN cluster joined, welcome bestie 🫶cfg80211_nan_ulw_update(9)— NAN ULW update ✨cfg80211_nan_channel_evac(9)— NAN channel evac, evacuate 🏃wiphy_locked_debugfs_read(9)— debugfs read, locked edition 🔒wiphy_locked_debugfs_write(9)— debugfs write, locked edition 🔐cfg80211_s1g_get_start_freq_khz(9)— S1G start freq, in kHz ⭐cfg80211_s1g_get_end_freq_khz(9)— S1G end freq, in kHz ⭐cfg80211_s1g_get_primary_sibling(9)— S1G primary sibling, family vibes 👯cfg80211_incumbent_signal_notify(9)— incumbent signal notif, last but never least 💖
and that's the whole page, bestie 🎀 it lives in ./include/net, dated October 2026, and it's filed under cfg80211_get_chandef_type(9) — go forth and channel-define responsibly, mwah 💋✨
📦 where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- 💖 girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms