cfg80211_chandef_valid(9)

📦 version 7.3.1, in nixpkgs unstable

✨ cfg80211_chandef_valid(9) ✨

okay so this is a page from the Kernel API Manual and honestly it's a short one but it's lowkey important, so let's get into it 💅

🎀 NAME 🎀

cfg80211_chandef_valid — check if a channel definition is valid

like, it's the vibe check for your channel definition, no cap 🌈

🦋 SYNOPSIS 🦋

bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef);

bestie it returns a bool, so you already know this is a yes-or-no situation 👑

🌸 ARGUMENTS 🌸

  • chandef — the channel definition to check. that's the thing you're putting through the vibe check, she's a const struct cfg80211_chan_def * and we love her for it 💖

⭐ RETURN ⭐

Returns true if the channel definition is valid. Returns false otherwise.

literally that simple — true means slay, false means not slay 😭 periodt.

✨ SEE ALSO ✨

okay bestie, buckle up — this list is long, like actually long, and we're gonna get through every single one of them together. no skipping, no "eh close enough" 💅

now we roll into the config zone, aka where our main character lives 💖

scanning time 📡 like we're out here looking for vibes, except the vibes are BSS entries

  • 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)

NAN squad, assemble 🫶 (Neighbor Awareness Networking, not your grandma)

  • 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)
  • 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 zone 👑 this is the big one, the main character energy of the whole list

utility functions 🧰 the little helpers that are lowkey carrying everything

data path helpers 🛣️ where the packets actually go

regulatory land ⚖️ aka the vibes police telling you what channels you're allowed to touch

back to BSS stuff, but the event side this time 🔔

RFkill + vendor + test mode 🧪 yes we're still going, hydrate bestie 💧

connect / roam / disconnect saga 😭 the emotional arc of every wifi session

...and the rest of the group chat 💬 — these are the other pages you'll be living in while you're poking at chandefs, lowkey the whole neighborhood:

That's the whole roster, bestie — go click through whichever one you actually needed, this page is just the doorway 🫶✨

Okay so that's the page! It came out of ./include/net, the version notes read October 2026, and it's literally titled cfg80211_chandef_valid(9). Slay, go validate some chandefs, ily, bye 💖🎀🌸

📦 where this page comes from