ieee80211_ch...rating_class(9)

📦 version 7.3.1, in nixpkgs unstable

✨ ieee80211_ch...rating_class(9) ✨

okay so this is a page straight out of the Kernel API Manual bestie, and yes the title got a little truncated by the terminal (it's giving "my name is too long for this column" energy 😭) — but don't worry, we're about to unpack the whole thing together 🫶

🌸 NAME 🌸

ieee80211_chandef_to_operating_class — the little function that converts a chandef into an operation class 💫

like. literally what it says on the tin. chandef goes in, operating class comes out. slay.

🎀 SYNOPSIS 🎀

bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef, u8 *op_class);
✨ notice the return type bestie — it's a bool, which means it's gonna tell you yes or no at the end. no cap. 👑

🦋 ARGUMENTS 🦋

  • chandef — the chandef you wanna convert, bestie. that's the input, that's the main character of this whole operation 💅
  • op_class — a pointer to the resulting operating class 🌈 like, this is where the answer ends up. it's an output, it's not reading from it, it's writing into it. iykyk.

💖 RETURN 💖

  • true — the conversion was successful 🎉 ate and left no crumbs
  • false — it wasn't 😭 better luck next time

that's part one, babe — more coming, don't go anywhere 🧚💜

🌸 SEE ALSO 🌸

okay bestie, this is the part where we list literally everyone in this friend group 💖. It's a long list — no cap — but that's because the kernel Wi-Fi squad is huge. Skim it, tap what you need, don't panic. 🫶

  • ./include/net/cfg80211.h — the actual kernel file where this whole universe lives, tied to Introduction(9) — start there if you're brand new, it's giving orientation week 💅
  • Device registration(9) — how a device actually gets itself on the bus, like finally being added to the group chat
  • enum ieee80211_channel_flags(9) — the little flags that hang off a channel
  • struct ieee80211_channel(9) — the channel struct itself, main character energy 👑
  • enum ieee80211_rate_flags(9) — flags, but for rates
  • enum ieee80211_bss_type(9) — what kind of BSS we're talking about
  • enum ieee80211_privacy(9) — the privacy enum, she's mysterious 🙈
  • struct ieee80211_rate(9) — a rate, as an actual struct
  • struct ieee80211_he_obss_pd(9) — HE OBSS PD, yes that's the whole vibe
  • struct cfg80211_he_bss_color(9) — BSS coloring, but make it HE
  • struct ieee80211_sta_ht_cap(9) — HT capabilities of a station
  • struct ieee80211_sta_vht_cap(9) — VHT capabilities, the sequel
  • struct ieee80211_sta_he_cap(9) — HE caps, threequel
  • struct ieee80211_eht_mcs_nss_supp(9) — EHT MCS/NSS support, say that five times fast 😭
  • struct ieee80211_sta_eht_cap(9) — EHT caps, the fourquel
  • struct ieee80211_sta_uhr_cap(9) — UHR caps, she's new here ✨
  • struct ieee80211_sband_iftype_data(9) — per-band, per-iftype data, lowkey the backbone
  • enum ieee80211_edmg_bw_config(9) — EDMG bandwidth config enum
  • struct ieee80211_edmg(9) — the EDMG struct
  • struct ieee80211_sta_s1g_cap(9) — S1G caps, niche but iconic
  • struct ieee80211_supported_band(9) — what a band actually supports
  • _ieee80211_set_sband_iftype_data(9) — the underscore one, iykyk 👀
  • ieee80211_set_sband_iftype_data(9) — and its public bestie
  • for_each_sband_iftype_data(9) — the iterator, she loops
  • ieee80211_get_sband_iftype_data(9) — the getter for all that
  • ieee80211_get_he_iftype_cap(9) — grab the HE iftype cap
  • ieee80211_get_he_6ghz_capa(9) — HE 6 GHz capa, special lil 6GHz moment
  • ieee80211_get_eht_iftype_cap(9) — EHT version of the same
  • ieee80211_get_uhr_iftype_cap(9) — and UHR, she ate 🔥
  • wiphy_read_of_freq_limits(9) — reads freq limits out of the device tree

💫 Actions and configuration(9) crew 💫

  • Actions and configuration(9) — the whole section hub, start here for doing-stuff
  • struct vif_params(9) — params for a virtual interface
  • struct key_params(9) — key params, keep 'em secret 🤫
  • struct cfg80211_chan_def(9) — the channel definition struct, essential
  • struct cfg80211_tid_cfg(9) — per-TID config
  • struct cfg80211_tid_config(9) — the plural, per-TID configs
  • struct cfg80211_fils_aad(9) — FILS AAD
  • struct cfg80211_set_hw_timestamp(9) — hardware timestamp setting
  • cfg80211_get_chandef_type(9) — get the chandef type
  • cfg80211_chandef_create(9) — create a chandef
  • cfg80211_chandef_identical(9) — are these two chandefs the same? vibe check 💅
  • cfg80211_chandef_is_edmg(9) — is it EDMG? yes or no
  • cfg80211_chandef_is_s1g(9) — is it S1G? also yes or no
  • cfg80211_chandef_compatible(9) — are they compatible, not just cute together
  • nl80211_chan_width_to_mhz(9) — width in MHz
  • cfg80211_chandef_get_width(9) — get the width of a chandef
  • cfg80211_chandef_valid(9) — validity check, do not skip 😤
  • cfg80211_chandef_usable(9) — usable check, different from valid, don't mix them up
  • cfg80211_chandef_dfs_required(9) — does DFS apply here
  • cfg80211_chandef_dfs_usable(9) — and is it DFS-usable
  • cfg80211_chandef_dfs_cac_time(9) — how long CAC takes, go touch grass meanwhile 🌱
  • cfg80211_chandef_primary(9) — get the primary channel
  • cfg80211_chandef_npca_valid(9) — NPCA validity
  • cfg80211_chandef_add_npca(9) — add NPCA
  • cfg80211_chandef_add_dbe(9) — add DBE
  • nl80211_send_chandef(9) — send the chandef out into the world
  • ieee80211_chandef_max_power(9) — max power for the chandef
  • cfg80211_chandef_s1g_pri_width(9) — S1G primary width
  • cfg80211_any_usable_channels(9) — are there any usable channels, pls say yes 😭
  • enum survey_info_flags(9) — survey flags
  • struct survey_info(9) — the survey info itself
  • struct cfg80211_crypto_settings(9) — crypto settings, she's locked 🎀
  • struct cfg80211_mbssid_config(9) — M-BSSID config
  • struct cfg80211_mbssid_elems(9) — M-BSSID elements
  • struct cfg80211_rnr_elems(9) — RNR elements
  • struct cfg80211_beacon_data(9) — beacon data
  • struct cfg80211_acl_data(9) — ACL data
  • struct cfg80211_fils_discovery(9) — FILS discovery
  • struct cfg80211_unsol_bcast_probe_resp(9) — unsolicited broadcast probe response, long name, big energy
  • struct cfg80211_s1g_short_beacon(9) — S1G short beacon
  • struct cfg80211_ap_settings(9) — AP settings
  • struct cfg80211_ap_update(9) — AP update
  • struct cfg80211_csa_settings(9) — channel switch announcement settings
  • struct cfg80211_color_change_settings(9) — color change settings 🌈
  • struct iface_combination_params(9) — interface combination params
  • enum station_parameters_apply_mask(9) — apply mask for station params
  • struct sta_txpwr(9) — station TX power
  • struct link_station_parameters(9) — link station params
  • struct link_station_del_parameters(9) — params for deleting one
  • struct cfg80211_ttlm_params(9) — TTLM params
  • struct station_parameters(9) — station params
  • struct station_del_parameters(9) — deletion params
  • enum cfg80211_station_type(9) — what type of station
  • cfg80211_check_station_change(9) — check if a station change is allowed
  • enum rate_info_flags(9) — rate info flags
  • enum rate_info_bw(9) — rate info bandwidth
  • struct rate_info(9) — the rate info struct
  • enum bss_param_flags(9) — BSS param flags
  • struct sta_bss_parameters(9) — station BSS params
  • struct cfg80211_txq_stats(9) — TXQ stats
  • struct cfg80211_tid_stats(9) — TID stats
  • struct link_station_info(9) — link station info
  • struct station_info(9) — station info, the big one
  • struct cfg80211_sar_sub_specs(9) — SAR sub-specs
  • struct cfg80211_sar_specs(9) — SAR specs
  • struct cfg80211_sar_freq_ranges(9) — SAR frequency ranges
  • struct cfg80211_sar_capa(9) — SAR capabilities
  • cfg80211_get_station(9) — get a station
  • enum monitor_flags(9) — monitor flags
  • enum mpath_info_flags(9) — mesh path info flags
  • struct mpath_info(9) — mesh path info
  • enum wiphy_bss_param_flags(9) — wiphy BSS param flags
  • struct bss_parameters(9) — BSS parameters
  • struct mesh_config(9) — mesh config
  • struct mesh_setup(9) — mesh setup
  • struct ocb_setup(9) — OCB setup
  • struct ieee80211_txq_params(9) — TXQ params

🦋 Scanning and BSS list handling(9) squad 🦋

  • Scanning and BSS list handling(9) — the whole scanning section, go here for scan lore
  • struct cfg80211_ssid(9) — an SSID
  • struct cfg80211_scan_info(9) — scan info
  • struct cfg80211_scan_6ghz_params(9) — the 6 GHz scan params
  • struct cfg80211_scan_request(9) — a scan request
  • struct cfg80211_match_set(9) — match set
  • struct cfg80211_sched_scan_plan(9) — scheduled scan plan
  • struct cfg80211_bss_select_adjust(9) — BSS selection adjustment
  • struct cfg80211_sched_scan_request(9) — scheduled scan request
  • enum cfg80211_signal_type(9) — signal type enum
  • struct cfg80211_inform_bss(9) — inform BSS
  • struct cfg80211_bss_ies(9) — the BSS IEs
  • struct cfg80211_bss(9) — the BSS struct itself, icon
  • ieee80211_bss_get_elem(9) — get an element from a BSS
  • ieee80211_bss_get_ie(9) — the older get-an-IE helper
  • struct cfg80211_auth_request(9) — auth request
  • struct cfg80211_assoc_link(9) — assoc link
  • struct cfg80211_ml_reconf_req(9) — ML reconf request
  • enum cfg80211_assoc_req_flags(9) — assoc request flags
  • struct cfg80211_assoc_request(9) — assoc request
  • struct cfg80211_deauth_request(9) — deauth request, the breakup text 💔
  • struct cfg80211_disassoc_request(9) — disassoc request, softer breakup
  • struct cfg80211_ibss_params(9) — IBSS params
  • struct cfg80211_bss_selection(9) — BSS selection
  • struct cfg80211_connect_params(9) — connect params
  • enum cfg80211_connect_params_changed(9) — what changed in the connect params
  • enum wiphy_params_flags(9) — wiphy params flags
  • struct cfg80211_pmksa(9) — PMKSA
  • struct cfg80211_pkt_pattern(9) — packet pattern
  • struct cfg80211_wowlan_tcp(9) — WoWLAN TCP, wake-on-wireless magic ✨
  • struct cfg80211_wowlan(9) — WoWLAN
  • struct cfg80211_coalesce_rules(9) — coalesce rules
  • struct cfg80211_coalesce(9) — coalesce
  • struct cfg80211_wowlan_nd_match(9) — WoWLAN net-detect match
  • struct cfg80211_wowlan_nd_info(9) — WoWLAN net-detect info
  • struct cfg80211_wowlan_wakeup(9) — WoWLAN wakeup
  • struct cfg80211_gtk_rekey_data(9) — GTK rekey data
  • struct cfg80211_update_ft_ies_params(9) — update FT IEs params
  • struct cfg80211_mgmt_tx_params(9) — mgmt TX params
  • struct cfg80211_dscp_exception(9) — DSCP exception
  • struct cfg80211_dscp_range(9) — DSCP range
  • struct cfg80211_qos_map(9) — QoS map

🧚 Neighbor Awareness Networking (NAN)(9) corner 🧚

  • Neighbor Awareness Networking (NAN)(9) — the NAN section, she's social
  • struct cfg80211_nan_band_config(9) — NAN band config
  • struct cfg80211_nan_conf(9) — NAN conf
  • struct cfg80211_nan_channel(9) — NAN channel
  • struct cfg80211_nan_local_sched(9) — NAN local schedule
  • struct cfg80211_nan_peer_map(9) — NAN peer map
  • struct cfg80211_nan_peer_sched(9) — NAN peer schedule
  • enum cfg80211_nan_conf_changes(9) — NAN conf changes
  • struct cfg80211_nan_func_filter(9) — NAN function filter
  • struct cfg80211_nan_func(9) — NAN function

🌈 the rest of the connection / PMSR / wiphy fam 🌈

  • struct cfg80211_pmk_conf(9) — PMK conf
  • struct cfg80211_external_auth_params(9) — external auth params
  • struct cfg80211_ftm_responder_stats(9) — FTM responder stats
  • struct cfg80211_pmsr_ftm_result(9) — PMSR FTM result
  • struct cfg80211_pmsr_result(9) — PMSR result
  • struct cfg80211_pmsr_ftm_request_peer(9) — PMSR FTM request peer
  • struct cfg80211_pmsr_request_peer(9) — PMSR request peer
  • struct cfg80211_pmsr_request(9) — PMSR request
  • struct cfg80211_update_owe_info(9) — update OWE info
  • struct mgmt_frame_regs(9) — management frame registrations
  • struct cfg80211_ops(9) — the ops struct, all the callbacks live here 👑
  • enum wiphy_flags(9) — wiphy flags
  • struct ieee80211_iface_limit(9) — interface limit
  • struct ieee80211_iface_combination(9) — interface combination
  • enum wiphy_wowlan_support_flags(9) — WoWLAN support flags
  • struct wiphy_wowlan_support(9) — WoWLAN support
  • struct wiphy_coalesce_support(9) — coalesce support
  • enum wiphy_vendor_command_flags(9) — vendor command flags
  • enum wiphy_opmode_flag(9) — opmode flag
  • struct sta_opmode_info(9) — station opmode info
  • struct wiphy_vendor_command(9) — vendor command
  • struct wiphy_iftype_ext_capab(9) — iftype extended capabilities
  • cfg80211_get_iftype_ext_capa(9) — get the iftype ext capa
  • struct cfg80211_pmsr_capabilities(9) — PMSR capabilities
  • struct wiphy_iftype_akm_suites(9) — iftype AKM suites
  • struct wiphy_radio_cfg(9) — radio config
  • struct wiphy_radio_freq_range(9) — radio freq range
  • struct wiphy_radio(9) — the radio itself
  • enum wiphy_nan_flags(9) — NAN flags
  • struct wiphy_nan_capa(9) — NAN capabilities
  • struct wiphy(9) — the wiphy, THE main character 🫶
  • wiphy_priv(9) — get the private area behind a wiphy
  • priv_to_wiphy(9) — go the other way, priv back to wiphy
  • set_wiphy_dev(9) — attach a device to a wiphy
  • wiphy_dev(9) — grab that device back
  • wiphy_name(9) — the wiphy's name, she has one
  • wiphy_new_nm(9) — allocate a wiphy with a name
  • wiphy_new(9) — allocate a wiphy, classic
  • wiphy_register(9) — register it, big moment ✨
  • rcu_dereference_wiphy(9) — RCU deref, wiphy-flavored
  • wiphy_dereference(9) — the deref helper
  • get_wiphy_regdom(9) — get the wiphy's regulatory domain
  • wiphy_unregister(9) — unregister, sad but necessary
  • wiphy_free(9) — free it
  • wiphy_lock(9) — lock it
  • wiphy_unlock(9) — and unlock, balance 💅
  • wiphy_work_queue(9) — queue wiphy work
  • wiphy_work_cancel(9) — cancel it
  • wiphy_work_flush(9) — flush it
  • wiphy_delayed_work_queue(9) — queue delayed wiphy work
  • wiphy_delayed_work_cancel(9) — cancel the delayed kind
  • wiphy_delayed_work_flush(9) — flush the delayed kind
  • wiphy_delayed_work_pending(9) — is delayed work pending?
  • wiphy_hrtimer_work_queue(9) — queue hrtimer work
  • wiphy_hrtimer_work_cancel(9) — cancel hrtimer work
  • wiphy_hrtimer_work_flush(9) — flush hrtimer work
  • wiphy_hrtimer_work_pending(9) — is the hrtimer work pending?
  • enum ieee80211_ap_reg_power(9) — AP regulatory power enum
  • struct wireless_dev(9) — the wireless dev, aka wdev
  • wdev_priv(9) — wdev private area
  • wdev_chandef(9) — the wdev's chandef
  • Utility functions(9) — the utilities section, handy lil helpers

🍓 Utility functions(9) deep dive 🍓

🔥 Data path helpers(9) 🔥

👑 Regulatory enforcement infrastructure(9) 👑

💜 BSS reporting & MLME notification zone 💜

⭐ RFkill integration(9) ⭐

🎀 Vendor commands(9) 🎀

🧚 Test mode(9) — yes she still exists 🙈

🌸 connect / roam / channel-ready notifications 🌸

…and the list literally does not stop, bestie — here's the rest of the crew, all of them living in the same ./include/net cinematic universe, no cap:

Okay so that's the whole cross-reference family, bestie — every single one of them, exactly as written, no edits, no skips. Go read them, or don't, but at least you know they exist now. 🫶

And that's the page! It lives over in ./include/net, and this cut is the October 2026 version. Stay hydrated, read your manpages, and may your chandefs always be valid 💅✨🎀

📦 where this page comes from