ieee80211_is_data_qos(9)

💅 ieee80211_is_data_qos 💅

okay so bestie, welcome to the Kernel API Manual, section 9 — the little corner of the kernel where we all sit around asking "is this frame control field giving QoS data energy or not?" and honestly? iconic question. this one's a tiny function with a very specific job and it does it flawlessly, no notes. 🎀

---

✨ NAME ✨

ieee80211_is_data_qos — check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set 🦋

like yes, that's the whole vibe check: data type? QoS subtype? both? we stan a two-factor confirmation.

---

🌸 SYNOPSIS 🌸

bool ieee80211_is_data_qos (__le16 fc );

literally just hand it the frame control bytes and it comes back with a bool. clean. simple. main character energy. 💜

---

🫶 ARGUMENTS 🫶

• fc — frame control bytes in little-endian byteorder 💖 (yes, little-endian, don't come at me with big-endian bytes, the function will simply not be slayed)

---

⭐ RETURN ⭐

returns whether or not the frame is a QoS data frame — a bool, so like, yes or no, no in-between, no "it's complicated". 🎀

---

🧚 SEE ALSO 🧚

bestie this list is long — it's giving "the whole friend group showed up to the function's birthday party" 😭 but every single one is here, no cap, in order fr fr:

Kernel file ./include/linux/ieee80211.h — that's the home base 🏠

• ieee80211_has_tods(9)
• ieee80211_has_fromds(9)
• ieee80211_has_a4(9)
• ieee80211_has_morefrags(9)
• ieee80211_has_retry(9)
• ieee80211_has_pm(9)
• ieee80211_has_moredata(9)
• ieee80211_has_protected(9)
• ieee80211_has_order(9)
• ieee80211_is_mgmt(9)
• ieee80211_is_ctl(9)
• ieee80211_is_data(9)
• ieee80211_is_ext(9)
• ieee80211_is_data_present(9)
• 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)
• 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)
• 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)

---

ngl the whole point is this: IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA both gotta be set. miss one and it's a no. periodt. 🔥

---

okay that's the whole page bestie, go forth and check your frame types 💅✨ — this little masterpiece lives at ./include/linux and it's dated October 2026, so like, future-proofed and gorgeous. bye, love u, see u in the next function 🦋👑🌈