e1000_read_phy_reg_hv(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000_read_phy_reg_hv — like, the HV PHY register reader, bestie

okay so this is a page from the Kernel API Manual, and it's about e1000_read_phy_reg_hv, which is a function. Not a command, not a vibe, a function. Sit with that for a sec. 🫶

🌸 NAME 🌸

e1000_read_phy_reg_hv — literally just: read HV PHY register. that's the whole thing. that's the assignment. ✨

🎀 SYNOPSIS 🎀

s32 e1000_read_phy_reg_hv (struct e1000_hw *hw , u32 offset , u16 *data
);

she takes three things and returns an s32, and honestly? iconic of her. 👑

🦋 ARGUMENTS 🦋

  • hw — pointer to the HW structure. like, the hardware situation. she needs to know which hardware before she does anything, obviously. 🖥️
  • offset — register offset to be read. the exact spot you wanna peek at. 📍
  • data — pointer to the read data. this is where the good stuff lands when she's done. 💖

✨ DESCRIPTION ✨

so here's the whole storyline, no cap:

First, she acquires semaphore — get you a function that locks the door behind her, fr fr. 🔒

Then she reads the PHY register at offset and stores the retrieved information in data. so data comes back with the goods, periodt.

And then the part that matters most: she releases the acquired semaphore before exiting. she does NOT just dip. she cleans up. main character energy with manners. 💅

okay but for real, the release-before-exit bit is in the description for a reason — that's the whole "don't leave the door locked" situation. 🌸

🧚 SEE ALSO 🧚

the friend group 💜 — also, the kernel file lives at ./drivers/net/ethernet/intel/e1000e/phy.c

🌈 sign-off 🌈

okay that's the whole page, bestie 💖 this little slice of the Kernel API Manual comes from ./drivers/net/ethernet/intel/e... and it's dated October 2026 — so yeah, mark your calendar, screenshot it, tell your group chat. 🎀🦋 slay ⭐

📦 where this page comes from