mii_ctrl100...thtool_adv_t(9)

📦 version 7.3.1, in nixpkgs unstable

💅 mii_ctrl1000_to_ethtool_adv_t(9) — the Kernel API Manual bestie 🎀

okay so real talk, the header up top got chopped to mii_ctrl100...thtool_adv_t(9) because terminals are dramatic and can't handle long names 😭 — the actual full name is mii_ctrl1000_to_ethtool_adv_t, and this is a page from the Kernel API Manual. buckle up, it's a short one but it's lowkey iconic ✨

🌸 NAME 🌸

mii_ctrl1000_to_ethtool_adv_t — that's it, that's the name, the dash at the end is just sitting there with nothing to say 🫶

✨ SYNOPSIS ✨

u32 mii_ctrl1000_to_ethtool_adv_t (u32 adv );

🦋 ARGUMENTS 🦋

  • adv — the value of the MII_CTRL1000 register. that's the whole vibe check right there, it comes in as a u32 and it's literally just the raw register bits 💅

💖 DESCRIPTION 💖

okay so picture this: it's a small helper function — like, small small, it does one thing and it does it well, main character energy honestly 👑 — and what it does is translate MII_CTRL1000 bits over to ethtool advertisement settings. but!! and this is the important part bestie, don't skip it 🙈 — it only does that translation when in 1000Base-T mode. that's the condition, that's the context, that's the whole assignment. no cap. 🌈

🔥 SEE ALSO 🔥

now this is where it gets juicy because the cross-reference list is long and honestly kind of gorgeous in a chaotic way 😭💀 it all lives in the kernel file ./include/linux/mii.h:

like, go off, reference list 💅 ate and left no crumbs.

ngl the whole family of mii_* and *_adv_to_* helpers is a whole friend group and this function is the one that specifically handles the MII_CTRL1000 → ethtool direction, in 1000Base-T mode only. know the difference, iykyk 🧚

and that's the page!! fr fr you now know everything this manpage knows 🌟 mwah, stan the kernel, and remember — this beauty is filed under ./include/linux, dated October 2026. see u in the next man page bestie 🍓💜

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