cfg80211_s1g...mary_sibling(9)

📦 version 7.3.1, in nixpkgs unstable

💖 cfg80211_s1g_get_primary_sibling(9) 💖

Kernel API Manual 🫶

okay bestie, this is the part where we get into the S1G channel lore, and honestly it’s giving very specific but very slay. no cap, every detail matters here.

💖 NAME 💖

cfg80211_s1g_get_primary_sibling — retrieve the sibling 1MHz subchannel for an S1G chandef using a 2MHz primary channel. ✨

✨ SYNOPSIS ✨

struct ieee80211_channel * cfg80211_s1g_get_primary_sibling (struct
wiphy *wiphy , const struct cfg80211_chan_def *chandef );

🎀 ARGUMENTS 🎀

  • wiphy — the wiphy the channel belongs to 🦋
  • chandef — the chandef to use 💅

💅 DESCRIPTION 💅

okay so when chandef::s1g_primary_2mhz is set to true, we are operating on a 2MHz primary channel. periodt. 💖

the 1MHz subchannel designated by the primary channel location exists within chandef::chan, whilst the 'sibling' is denoted as being the other 1MHz subchannel that make up the 2MHz primary channel. literally the other half of the duo, the main character’s counterpart, iykyk. 👑

🌸 RETURN 🌸

the sibling 1MHz struct ieee80211_channel, or NULL on failure. 😭✨

🌸 SEE ALSO 🌸

okay bestie, this is the part where the page just dumps the entire family tree on you 💀 and honestly? it's iconic. every single one of these is a cross-reference from the original — and we are NOT skipping a single one, because we don't do that here 💅

🫶 the source file

  • Kernel file ./include/net/cfg80211.h

✨ intro & registration vibes

🦋 channels, rates & the band basics

  • 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)

🎀 sband iftype data squad

💜 actions and configuration (the big one)

  • 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, live and in colour

🌈 survey, crypto & beacon plumbing

  • 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)

💖 rate info & bss params

  • 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)

🧚 SAR, stations & mesh/ocb corner

  • 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 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)

💀 auth / assoc / connect era

  • 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)

🎀 pmksa, wowlan & friends

  • 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 girlies, assemble

  • 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 & pmsr

  • 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 flags zone

  • 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, it's giving main character energy

🧚 locking & the work queue family

🎀 ap reg power & wireless_dev besties

✨ utility functions (little helpers, big slay)

🦋 data path helpers

💖 element-finding squad (iykyk)

⭐ regulatory enforcement infrastructure

🌸 internal regulatory db functions

🎀 scan done, BSS informing & lookup

🫶 mlme mgmt & assoc resp era

💜 RFkill integration

🌈 vendor commands

🦋 test mode

🍓 connect / roam result gang

🧚 channel readiness & station bookkeeping

🎀 rx / tx mgmt & control port

💖 notifications, notifications, notifications

and that's the whole reference list, bestie — no cap, every last one of them is in there 💅✨

...okay bestie the list literally does not stop 😭 here's the rest of the squad, all still under that SEE ALSO energy — every single one of them, no skips:

And that's literally the whole page, bestie — you made it to the end and I'm so proud of you 🫶 Every single cross-reference up there is a real, exact page name, so you can go read any of them whenever your heart desires. No cap, that's the entire SEE ALSO roster, nobody left behind.

Ngl the little footer at the bottom is giving "the page has to end somewhere" energy: it lives in ./include/net, it's dated October 2026, and its whole name is cfg80211_s1g...mary_sibling(9) — yes, the abbreviated legend herself. Slay, honestly 💅💖

Okay bye, go touch some grass and then come back and read cfg80211_incumbent_signal_notify(9) again 🌿✨

📦 where this page comes from