cfg80211_find_ie(9)

📦 version 7.3.1, in nixpkgs unstable

💖 cfg80211_find_ie(9) — Kernel API Manual 💖

okay so bestie, this is the cfg80211_find_ie(9) page from the Kernel API Manual, and it's literally about finding an information element in data. no cap, that's the whole vibe. ✨

🌸 NAME 🌸

cfg80211_find_ie — find information element in data

🎀 SYNOPSIS 🎀

const u8 * cfg80211_find_ie (u8 eid , const u8 *ies , int len );

🦋 ARGUMENTS 🦋

  • eid — element ID 👑
  • ies — data consisting of IEs 💅
  • len — length of data 🌈

⭐ RETURN ⭐

Returns NULL if the element ID could not be found, or if the element is invalid — meaning it claims to be longer than the given data 😭. Otherwise, it returns a pointer to the first byte of the requested element, that is the byte containing the element ID. periodt. 💖

💀 NOTE 💀

There are no checks on the element length other than having to fit into the given data. fr fr, that's the whole caveat. 🫶

🦋 SEE ALSO 🦋

okay bestie, this is the part where the manpage just. lists. everything. 💀 like it's not a SEE ALSO, it's a SEE ALSOOOOO. but lowkey that's iconic of it, so here's the whole crew, no cuts, no skips — every single one of them 🫶

that was the band-support squad 🌸 — now we get into the ✨doing stuff✨ zone:

like?? that's a whole friend group 💅 and the scan girlies are next:

  • 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 time!! everyone say hi to the neighbor awareness girlies 🧚:

utility girlies, you're up ✨:

data path helpers giving main character energy 🔥 — and yes, our girl cfg80211_find_ie's whole family is in here:

regulatory enforcement infrastructure, aka the rules committee 👑:

and the BSS/notification besties keep going, so stay with me 🫶:

…okay so the SEE ALSO list literally does not stop, and honestly? she ate 💅 here's the rest of the crew, no cap:

the operating-class / chandef girlies, very main character energy ✨:

the ieee80211_ie_* + fragmenting squad, lowkey obsessed 🎀:

the NAN family reunion, they're all here fr fr 😭:

the whole colour-change era, it's giving artiste 🎨:

the debugfs duo, iconic 💅:

and the S1G trio closing us out, periodt 🌸:

aaaand that's the whole page, bestie, we literally made it 🫶 go read some of these, they're all right there. this one shipped out of ./include/net in October 2026, and the page itself is cfg80211_find_ie(9) — drink some water, star a repo, and stan your local wireless stack, mwah 💖✨

📦 where this page comes from