cfg80211_assoc_comeback(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cfg80211_assoc_comeback(9)

okay so picture this: you're deep in the Kernel API Manual (yes bestie, that's the manual name, it's giving ✨official documentation✨), and you stumble onto this little icon. it's called cfg80211_assoc_comeback, and honestly? the name alone is a whole vibe. let's get into it 🫶

🌸 NAME 🌸

cfg80211_assoc_comeback — the notification that an association got temporarily rejected with a comeback. like, not a hard no, more of a "not right now, try again later" kind of deal 😭💔

✨ SYNOPSIS ✨

void cfg80211_assoc_comeback (struct net_device *netdev , const u8
       *ap_addr , u32 timeout );

that's the whole signature, no cap. one void function, three args, zero drama (okay maybe a little drama, scroll down for the mutex situation 👀). 🔥

🎀 ARGUMENTS 🎀

  • netdev — the network device. literally the main character here, the thing the whole call is about 🌈
  • ap_addr — the AP (MLD) address that rejected the association. so like, the address of the one who said "no" 💀 keep the (MLD) in your heart, it's important iykyk
  • timeout — the timeout interval value, measured in TUs. that's the "try again in this long" number 🕐✨

🦋 DESCRIPTION 🦋

okay so the two things you actually need to know before you go call this:

  • this function may sleep. 😴 not a metaphor, not a joke — it can literally sleep, so don't be out here calling it from somewhere spicy 🔥
  • the caller must hold the corresponding wdev's mutex. fr fr, that's on you, bestie. this function is not gonna lock it for you. lock it yourself, then call, periodt 💅👑

get those two right and you're slaying. get them wrong and, well… we don't talk about that 🙈

💅 SEE ALSO 💅

okay bestie, this is the part where the page hands you the entire extended universe. every single cross-reference, no skips, no "etc." — we're doing the full guest list 💖. grab a snack, this one's a scroll.

🌸 where to start

  • Kernel file ./include/net/cfg80211.h Introduction(9) — literally the front door, start here
  • Device registration(9) — next stop on the tour

🦋 channels, rates, bands & the cap collection

this whole cluster is the "what can this radio actually do" squad. ht, vht, he, eht, uhr — the glow-up timeline of wifi, all present and accounted for:

👑 actions & configuration (the big one, fr)

  • Actions and configuration(9) — this is the main event of this cluster, the rest is the supporting cast
  • 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 besties (channel width obsessed, as they should be)

🎀 survey, beacon, AP & CSA energy

  • 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, rates, SAR, mesh & friends

  • 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 & BSS list handling

scanning, BSS lists, association requests, connect params, and then it detours straight into wowlan + coalesce because why not. icons only, tbh:

  • 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)
  • 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 whole NAN section pops off, it's giving proximity-based main character energy:

  • 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)

🫶 auth, PMK, PMSR & mgmt frames

  • 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 wiphy cinematic universe

ops, caps, lifecycles, locks, works, hrtimers — this is the wiphy lore drop. buckle up:

  • 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 allocation & registration

🔒 locking & deferred work (respect the locking, i beg)

🎀 wireless_dev, our other icon

✨ utility functions

the little helpers that do the actual vibes-to-numbers math:

🍓 data path helpers

frame conversion, amsdu checks, element hunting — the "make the bytes make sense" crew:

🌈 regulatory enforcement infrastructure

heads up: the regulatory pages are serious business — they're about what your radio is legally allowed to do, not just vibes. read them properly, bestie.

💀 BSS reporting, MLME & assoc notifications

🙈 rfkill integration

🦋 vendor commands

🧚 test mode

💖 connect / roam / disconnect & all the notifications

the "tell userspace what just happened" hall of fame:

🔥 cqm & radar & cac & rekey notifications

...and the list literally keeps going, bestie, so buckle up 🎀

Still with me? iconic, ty 💖 keep scrolling, we're not done.

okay this is lowkey a whole saga at this point 😭 but every single one stays, no skipping, periodt.

That's the whole list — we ate, no crumbs left 💅✨ go read whichever one you actually came for, bestie, iykyk.

And that's a wrap on this page, fr fr 🦋 it lives in ./include/net, it's dated October 2026, and the page itself is cfg80211_assoc_comeback(9) — go forth and associate, you gorgeous nerd 🌸👑

📦 where this page comes from