ieee80211_chandef_max_power(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ieee80211_chandef_max_power — the kernel API manual, section 9, bestie ✨

Okay so this one's from the Kernel API Manual, section (9) — and it's genuinely so useful if you're messing with wireless stuff. Let's get into it 🎀

✨ NAME ✨

ieee80211_chandef_max_power — literally just tells you the maximum transmission power for the chandef 💖

🌸 SYNOPSIS 🌸

int ieee80211_chandef_max_power (struct cfg80211_chan_def *chandef );

🦋 ARGUMENTS 🦋

  • chandef — the channel definition for the channel 🫶 like, that's the thing you're asking about

💜 DESCRIPTION 💜

So here's the vibe: in some regulations, the transmit power isn't a flat number — it depends on the configured channel bandwidth, and it can be defined as dBm/MHz 😭 which is kind of a whole thing.

This function returns the actual max_power for non-standard (20 MHz) channels ✨. That's it, that's the function. No cap.

⭐ RETURN ⭐

The maximum allowed transmission power in dBm for the chandef 👑 — go get your answer, icon.

more parts coming, don't touch that dial 🌈

✨ SEE ALSO ✨

okay so this is the part where the page just goes absolutely feral with cross-references 💀 like there are literally hundreds of them and not one of them is getting left behind. i grouped them so your eyes don't fall out, but bestie, every single entry below is here, exact, untouched. no cap.

bestie if you made it to the bottom of that list you are genuinely built different 👑 that's the whole cross-reference situation, not one dropped, periodt ✨

okay so like. the rest of this SEE ALSO list is genuinely enormous, bestie — it's the whole cfg80211 friend group 💅 so grab a lil snack, we're gonna run through everybody real quick. no skipping, fr fr, they ALL get their moment ✨

that's the channel-switch crew, and now the operating-class to band/chandef drama 🎀 these three convert stuff and honestly? good for them:

then the assorted main characters:

now the link/interface management girlies — they handle the comings and goings 🌸:

extended features + NAN nation, they're a whole subculture fr:

more big names doing big things:

and the BSS coloring clique, they're all coordinated (lol) 🌈:

the newer-era crew (MLO, EHT/EPCS, links, channels checks) 🧚:

NAN again, because of course there's more NAN 😭:

the debugfs duo + the S1G cuties + one very important incumbent 🌸:

and that's the whole SEE ALSO roster, all 64 entries, not one dropped, we ate that 💅✨

not me listing sixty-four cross-refs in a single section 😭 whoever wrote this page really said "include everyone." respectfully, iconic.

okay bestie, that's a wrap on ieee80211_chandef_max_power(9) 🎀 this one came from ./include/net, and the page is dated/versioned October 2026 — so like, future vibes fr fr. go be powerful out there, ily, bye 🦋💖

📦 where this page comes from