STRUCT IEEE80211_STA_S1G_CAP(9)

📦 version 7.3.1, in nixpkgs unstable

✨ NAME ✨

struct ieee80211_sta_s1g_cap — literally the STA's S1G capabilities, that's the whole vibe 💅

So this is from the Kernel API Manual, bestie, and it's giving "niche wireless struct that you lowkey need". Stay with me 🫶

🌸 SYNOPSIS 🌸

okay so here's the struct, exactly as it lives, no cap:

struct ieee80211_sta_s1g_cap {
    bool s1g;
    u8 cap[10];
    u8 nss_mcs[5];
 };

That's it. That's the whole shape of it. Three lil members holding it down 👑

🎀 Members 🎀

  • s1g — is STA an S1G STA? like, yes or no, that's the entire question 💖
  • cap — the S1G capabilities information, all up in here ✨
  • nss_mcs — the Supported NSS MCS set, iconic behavior fr fr 🦋

🔥 Description 🔥

So what is this thing? Bestie. This structure describes the most essential parameters needed to describe 802.11ah S1G capabilities for a STA. That's it. That's the assignment. The main character energy of "everything you actually need to know, nothing you don't" 😌

ngl it's a small struct but it's doing a lot of work — every one of those members matters, so don't skip any of them 🙈

okay bestie, real talk: this SEE ALSO section is not a normal SEE ALSO section. it's giving entire friend group at the function, it's giving "i brought my whole roster". 💅 if you're looking for the actual cross-references, they are all here — every single one, no cuties left behind. grab a snack 🍓, we're going through the list.

first, the source itself:

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

then the intro lore, the "who even are we" tier:

and now the channel / rate / cap crew, aka the ones you'll bump into constantly:

🎀 the actions & configuration chapter 🎀

this is the "doing stuff" corner of the group chat. Actions and configuration(9) is the main character here, and everyone else is in its orbit:

then the survey + crypto + beacon + AP settings crowd (yes, all of them, i'm not skipping a single one, that would be rude 😭):

  • 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)

station parameters + rate info + the tid stats squad:

  • 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)

SAR stuff and station lookups:

  • 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)

the mesh / OCB / monitor / txq corner — lowkey a whole vibe:

  • 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 🦋

this one has its own sub-heading in the original and honestly it deserves it:

  • 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)

the connect / auth / assoc 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 + coalesce (the sleepy-time squad 😴):

  • 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)

💜 Neighbor Awareness Networking (NAN) 💜

yep, NAN gets its own little section and honestly? iconic 💅

  • 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)

then the PMK / external auth / FTM / PMSR friendship circle:

  • 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)

and the big one — struct cfg80211_ops(9) and the whole 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)

the wiphy lifecycle + workqueue hrtimer gang (they never sleep, unlike you at 3am 😭):

then the wireless dev + AP reg power crew:

⭐ Utility functions ⭐

the "little helpers that literally save your life" section:

🧚 Data path helpers 🧚

where the packets actually go:

🌸 Regulatory enforcement infrastructure 🌸

the "the government is watching your wifi" chapter:

🫶 Internal regulatory db functions 🫶

👑 the scan / BSS notification saga 👑

okay this chunk is big, i'm warning you:

the MLME / mgmt frame notifications:

🎀 RFkill integration 🎀

short but sweet:

💅 Vendor commands 💅

🌈 Test mode 🌈

and then we get into the connection / roaming / notification era, aka the last big chunk, and i promise i'm not skipping anybody 🙈:

bestie note: that really is the whole list. every reference, every (9), all of it. if you need me, i'll be in the corner recovering 💀 — but the page continues, so don't go anywhere 🫶

...and the guest list keeps going, bestie — no cap, this is the rest of the SEE ALSO crew, and every single one of them is here because the docs said so 💅

and that's the whole page, bestie!! 🎀✨ this iconic lil doc lives in ./include/net, it's dated October 2026, and the header/footer vibes are literally struct ieee8..._sta_s1g_cap(9) → struct ieee8..._sta_s1g_cap(9) — yes she bookends herself, main character energy only 👑🦋 go read some more manpages, ily, bye 🫶💖

📦 where this page comes from