mesh_set_ht_prot_mode(9)

📦 version 7.3.1, in nixpkgs unstable

✨ mesh_set_ht_prot_mode(9) ✨

okay so bestie, we're in the Kernel API Manual today and this one is a whole little bop about HT protection modes in mesh networks 💅 no cap, it's short but it matters.

🌸 NAME 🌸

mesh_set_ht_prot_mode — set correct HT protection mode 🎀

🦋 SYNOPSIS 🦋

u64 mesh_set_ht_prot_mode (struct ieee80211_sub_if_data *sdata );

💖 ARGUMENTS 💖

  • sdata — the (mesh) interface to handle. like, the thing you're doing the handling on, yk? 🫶

🔥 DESCRIPTION 🔥

okay so the lore: Section 9.23.3.5 of IEEE 80211-2012 is out here describing the protection rules for an HT mesh STA in a MBSS 📜 and our girl is the one who actually applies them.

Three HT protection modes are supported for now 👑, and here's the vibe check on each:

  • non-HT mixed mode — gets selected if any non-HT peers are present in our MBSS. like, one normie shows up and the whole party goes mixed mode, that's just how it is 😭
  • 20MHz-protection mode — gets selected if all peers in our 20/40MHz MBSS support HT and at least one HT20 peer is present. both conditions, no skipping 🎯
  • no-protection mode — the else clause, the fallback era, selected otherwise. living free, no protection, main character energy ⭐

🌈 RETURN 🌈

BSS_CHANGED_HT or 0 for no change 💀 (yes, 0 literally means "no change", she said what she said)

🧚 SEE ALSO 🧚

Kernel file ./net/mac80211/mesh_plink.c — plus the whole friend group:

and that's the page, bestie 🫶 it lives over in ./net/mac80211 and it was stamped October 2026 — go forth and protect those HT modes, ily, mwah 💋✨

📦 where this page comes from