ieee80211_has_pm(9)

👑 ieee80211_has_pm(9) — the Kernel API Manual glow-up ✨

okay so bestie, welcome to the ieee80211_has_pm(9) page, straight out of the Kernel API Manual 💅 this one is a tiny little legend and honestly it's giving "small but mighty", so let's get into it 🫶

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🌸 NAME 🌸

ieee80211_has_pm — literally checks if IEEE80211_FCTL_PM is set. that's the whole vibe check, no cap ✨

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🦋 SYNOPSIS 🦋

bool ieee80211_has_pm (__le16 fc );

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🎀 ARGUMENTS 🎀

• fc — the frame control bytes, but they've gotta be in little-endian byteorder bestie, that's the assignment 📝

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💖 RETURN 💖

it returns whether or not the power management flag is set 🫡 so like, true if it's there, false if it's not — the most honest little bool in the whole kernel fr fr ⭐

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🌈 SEE ALSO 🌈

okay this section is long and it absolutely ate 👑 first up, the source of truth:

• Kernel file ./include/linux/ieee80211.h 💫

then the frame-control siblings, aka the has_* squad — same energy, different flags 🧚

• ieee80211_has_tods(9), ieee80211_has_fromds(9), ieee80211_has_a4(9), ieee80211_has_morefrags(9), ieee80211_has_retry(9), ieee80211_has_moredata(9), ieee80211_has_protected(9), ieee80211_has_order(9)

the frame type checkers, the "is this even a data frame" girlies 🌸

• ieee80211_is_mgmt(9), ieee80211_is_ctl(9), ieee80211_is_data(9), ieee80211_is_ext(9), ieee80211_is_data_qos(9), ieee80211_is_data_present(9)

subtype checkers, a whole sorority of them 💅

• ieee80211_is_assoc_req(9), ieee80211_is_assoc_resp(9), ieee80211_is_reassoc_req(9), ieee80211_is_reassoc_resp(9), ieee80211_is_assoc(9), ieee80211_is_probe_req(9), ieee80211_is_probe_resp(9), ieee80211_is_beacon(9), ieee80211_is_atim(9), ieee80211_is_disassoc(9), ieee80211_is_auth(9), ieee80211_is_deauth(9), ieee80211_is_action(9), ieee80211_is_back_req(9), ieee80211_is_back(9), ieee80211_is_pspoll(9), ieee80211_is_rts(9), ieee80211_is_cts(9), ieee80211_is_ack(9), ieee80211_is_cfend(9), ieee80211_is_cfendack(9), ieee80211_is_nullfunc(9), ieee80211_is_qos_nullfunc(9), ieee80211_is_trigger(9), ieee80211_is_any_nullfunc(9), ieee80211_is_first_frag(9), ieee80211_is_frag(9)

the info-element structs and that one enum, highkey the most aesthetic crowd 🎀

• struct ieee80211_quiet_ie(9), struct ieee80211_msrment_ie(9), struct ieee80211_channel_sw_ie(9), struct ieee80211_ext_chansw_ie(9), struct ieee80211_sec_chan_offs_ie(9), struct ieee80211_wide_bw_chansw_ie(9), struct ieee80211_tim_ie(9), struct ieee80211_tpc_report_ie(9), struct ieee80211_bss_load_elem(9), struct ieee80211_timeout_interval_ie(9), enum ieee80211_idle_options(9), struct ieee80211_bss_max_idle_period_ie(9), struct ieee80211_bssid_index(9), struct ieee80211_multiple_bssid_configuration(9)

the getters and the robust-mgmt / action crew, they're carrying the whole header tbh 😭🔥

• ieee80211_get_qos_ctl(9), ieee80211_get_tid(9), ieee80211_get_SA(9), ieee80211_get_DA(9), ieee80211_is_bufferable_mmpdu(9), _ieee80211_is_robust_mgmt_frame(9), ieee80211_is_robust_mgmt_frame(9), ieee80211_is_public_action(9), ieee80211_is_protected_dual_of_public_action(9), _ieee80211_is_group_privacy_action(9), ieee80211_is_group_privacy_action(9), ieee80211_tu_to_usec(9), ieee80211_get_tdls_action(9), ieee80211_action_contains_tpc(9), ieee80211_is_timing_measurement(9), ieee80211_is_ftm(9), for_each_element_completed(9), struct ieee80211_enh_crit_upd(9), ieee80211_check_tim(9)

like, that's the whole roster and every single one of them is linked 👑 no gatekeeping here 💜

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ngl bestie, this is a one-liner function and the SEE ALSO is longer than the function itself. balance. harmony. iconic behaviour 💀✨

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and that's the page!! brought to you by the source in ./include/linux, dated October 2026 🌸 the header said ieee80211_has_pm(9) and the footer said the same thing, so we're bookending this little masterpiece 🎀 mwah, go check your frame control flags, ily, bye 🫶💖