STRUCT CFG80211_SSID(9)

📦 version 7.3.1, in nixpkgs unstable

✨ NAME ✨

struct cfg80211_ssid — it's literally the SSID description, bestie 💅 (this is from the Kernel API Manual, section 9, iykyk)

🌸 SYNOPSIS 🌸

Okay so picture this struct, right:

struct cfg80211_ssid {
    u8 ssid[IEEE80211_MAX_SSID_LEN];
    u8 ssid_len;
 };

That's the whole thing. Baby struct. Iconic. 🎀

🦋 Members 🦋

  • ssid — the SSID itself, no cap. The actual network name vibes live here ✨
  • ssid_len — the length of the ssid, aka how many of those bytes are fr fr real 👑

lowkey that's the whole struct — short, sweet, and absolutely serving main character energy 🌈

👀 SEE ALSO 👀

okay bestie, this is the part where the docs go "and here's literally every other page in the whole subsystem" — no cap, section 9 has so many entries, and this page links to all of them 💀. It's giving phone book. It's giving "my FYP algorithm but for kernel doc pages." Do not panic. Just think of it as a map, bestie 🗺️ — every link is a real page you can open when you need it.

  • The actual source file this whole thing lives in: ./include/net/cfg80211.h 🎀

🌸 the intro + channel/rate/band-adjacent girlies

start here if you're brand new, it's giving orientation week:

  • Introduction(9), Device registration(9), 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)

and then all the capability structs — this is the "what can this hardware even do" corner, obsessed:

side note: _ieee80211_set_sband_iftype_data(9) has one underscore and __cfg80211_get_bss(9) (later down) has two. that is not a typo on my part, that's literally the name. respect the underscores 🫶

💅 Actions and configuration

the "actually making the radio do stuff" chapter, main character energy fr:

  • 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)

then the chandef squad — widths, DFS, NPCA, DBE, all of it, they ate:

AP-mode + survey + crypto land:

  • 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 params, rates, SAR, mesh, OCB, txq — the whole friend group 💖:

  • 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 and BSS list handling

scanning bestie era — finding networks and keeping track of them:

  • Scanning and BSS list handling(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 / wowlan / QoS — the connection-adjacent section, highkey a whole journey:

  • 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), 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)

the NAN corner, it's giving proximity-but-make-it-protocol ✨:

  • 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, and the wiphy industrial complex

PMK + FTM/PMSR + OWE + cfg80211_ops — the big structural stuff:

  • 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), 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 fam (yes there are three flavours of work and four verbs each, she's thorough):

🍓 Utility functions

channel <-> frequency conversions and friends — underrated icons honestly:

🌈 Data path helpers

packets going brrr — header length, 8023 conversion, A-MSDU, element finders 🫶:

⭐ Regulatory enforcement infrastructure

the "which channels are legal where" department, lowkey the most important one for staying out of trouble 👀:

💀 BSS informing, MLME, and notifying-everyone-about-everything

scan done, BSS lookup/ref/put/unlink, and then the entire MLME notification pipeline — genuinely a lot, but she's organized:

🎀 RFkill integration

three whole functions, tiny section, still iconic:

🔥 Vendor commands + Test mode

for driver-specific shenanigans and testmode (which the docs have always been a lil 🙈 about):

🧚 connect / roam / mgmt rx-tx / CQM / radar — the notification grand finale

this is the last stretch bestie, deep breath, we're almost at the end of the list 💜:

fr fr though — that is every single reference the page lists, in the exact order it lists them. Nothing dropped, nothing invented, no cap 💅

Okay so the SEE ALSO list is still going — it's giving extended cinematic universe 😭 buckle up bestie, here's the rest of the crew:

And that's the whole page, no cap 🫶 like, sixty-something cross-references later and we made it out alive.

This one's filed under ./include/net and stamped October 2026, bestie — go forth and be the main character of your own SSID situation 💖✨🎀

📦 where this page comes from