phy_check_valid(9)

📦 version 7.3.1, in nixpkgs unstable

✨ phy_check_valid(9) ✨

okay bestie, welcome to the Kernel API Manual, section 9 — this one's short and sweet and honestly kind of a vibe check for your PHY settings 🌸

🎀 NAME 🎀

phy_check_valid — check if there is a valid PHY setting which matches speed, duplex, and feature mask 💅

🦋 SYNOPSIS 🦋

bool phy_check_valid (int speed , int duplex , unsigned long *features
);

like yes the spacing is weird, don't come for me, that's just how the manpage served it 🫶

🌈 ARGUMENTS 🌈

  • speed — the speed you're trying to match, bestie 🏃‍♀️
  • duplex — the duplex you're trying to match, we love a full-duplex moment 😌
  • features — a mask of the valid settings, the whole guest list basically 👑

💖 DESCRIPTION 💖

Returns true if there is a valid setting, false otherwise. that's it. that's the whole function. short king energy 👑 no cap, it just tells you whether a valid setting exists for the speed / duplex / feature-mask combo you handed it, and if there isn't one it hits you with the false 💀

🔥 SEE ALSO 🔥

the whole extended fam lives in the kernel file ./drivers/net/phy/phy.c, and honestly the list is giving reunion episode 😭 every single one of these showed up:

and that's the whole page, bestie — mwah 💋 this little cutie ships out of ./drivers/net/phy and the docs are dated October 2026, so like, future-iconic 🌟 go read your PHY settings, ily, bye 🫶💜

📦 where this page comes from