e1000_write_phy_reg_hv(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000_write_phy_reg_hv(9) — the Kernel API Manual glow-up

okay so bestie, we're in the Kernel API Manual and today's main character is e1000_write_phy_reg_hv — yes that's the whole name, she's not shortening it, and honestly? iconic. she writes an HV PHY register. that's the whole gig. let's get into it 🎀

✨ NAME ✨

e1000_write_phy_reg_hv — Write HV PHY register 💖

🦋 SYNOPSIS 🦋

s32 e1000_write_phy_reg_hv (struct e1000_hw *hw , u32 offset , u16 data
);

like yes, it returns an s32, and yes, those are three arguments, we'll go through them one by one, don't panic 🫶

🌸 ARGUMENTS 🌸

  • hw — pointer to the HW structure. this is the hardware context, she's holding all the state, be nice to her.
  • offset — register offset to write to. like where in the register map you're landing 🗺️
  • data — data to write at register offset. the actual payload, the thing that goes in the slot ✨

💜 DESCRIPTION 💜

okay so the vibe is: it acquires the semaphore, then writes the data to the PHY register at the offset. that's it, that's the function. then it releases the acquired semaphores before exiting — like a good houseguest, she does not leave the semaphore hanging, periodt. 💅

so: lock, write, unlock, dip. no cap.

🔥 SEE ALSO 🔥

the friend group is huge, buckle up bestie, we're tagging everyone 🌈

and that's the whole page bestie, you ate that 🍓

sign-off time 🎀 this lil masterpiece comes from source ./drivers/net/ethernet/intel/e... and it's dated October 2026 — so mark your calendars, e1000_write_phy_reg_hv(9) is literally booked and busy 💖✨

📦 where this page comes from