STRUCT IEEE80211_HE_MCS_NSS_SUPP(9)

🦋 struct ieee80211_he_mcs_nss_supp — NAME 🦋

okay so bestie, welcome to the Kernel API Manual page for struct ieee80211_he_mcs_nss_supp, which is literally the HE Tx/Rx HE MCS NSS Support Field 💅 like that's the whole vibe, that's the name, periodt.

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✨ SYNOPSIS ✨

no cap, here's the whole struct, character for character, don't touch:

struct ieee80211_he_mcs_nss_supp {
    __le16 rx_mcs_80;
    __le16 tx_mcs_80;
    __le16 rx_mcs_160;
    __le16 tx_mcs_160;
    __le16 rx_mcs_80p80;
    __le16 tx_mcs_80p80;
 };

six __le16 fields, all matching, it's giving symmetry icon behavior 🎀

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🌸 Members 🌸

okay so let's meet the girlies one by one 🫶

• rx_mcs_80 — the Rx MCS map, and here's the tea: it's 2 bits for each stream, total 8 streams, and it's for channel widths less than 80MHz. yes bestie, less than.
• tx_mcs_80 — the Tx MCS map, same deal: 2 bits for each stream, total 8 streams, for channel widths less than 80MHz. twins fr fr 💖
• rx_mcs_160 — Rx MCS map again, 2 bits for each stream, total 8 streams, but this one's for channel width 160MHz. glow up 🌈
• tx_mcs_160 — Tx MCS map, 2 bits for each stream, total 8 streams, channel width 160MHz. iconic matching set 💜
• rx_mcs_80p80 — Rx MCS map, 2 bits for each stream, total 8 streams, for channel width 80p80MHz. that's not a typo, that's literally the name 🔥
• tx_mcs_80p80 — Tx MCS map, 2 bits for each stream, total 8 streams, for channel width 80p80MHz. she's the last one and she ate 💀

lowkey notice the pattern? every single field is 2 bits for each stream, total 8 streams — the only things changing are Rx vs Tx and the channel width. main character consistency ✨

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👑 Description 👑

so what does this struct actually do, bestie? it holds the data required for the Tx/Rx HE MCS NSS Support Field — and if you wanna read the actual source of truth, that's described in P802.11ax_D2.0 section 9.4.2.237.4 📖 like that's the receipt, go read it iykyk.

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🎀 SEE ALSO 🎀

bestie the whole friend group is here, go say hi to all of them (yes, all of them, I'm not skipping a single one) 🌸

• Kernel file ./include/linux/ieee80211-he.h struct ieee80211_he_cap_elem(9)
• enum ieee80211_he_mcs_support(9)
• struct ieee80211_he_operation(9)
• struct ieee80211_he_spr(9)
• struct ieee80211_he_mu_edca_param_ac_rec(9)
• struct ieee80211_mu_edca_param_set(9)
• struct ieee80211_he_6ghz_oper(9)
• enum ieee80211_reg_conn_bits(9)
• struct ieee80211_tx_pwr_env(9)
• ieee80211_he_6ghz_oper(9) — yes she's listed twice, no I'm not fixing it, that's canon 💅

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and that's the whole page, bestie 🦋 it lives in ./include/linux, and this little slice of kernel lore is dated October 2026, from the struct ieee8...mcs_nss_supp(9) files. mwah, go forth and map your MCS 🎀✨💖