e1000_power_down_phy_copper(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000_power_down_phy_copper — from the Kernel API Manual 🫶

okay bestie, welcome to the Kernel API Manual ✨ this one's a lil networking function and honestly it's giving "quiet hero of your ethernet card" energy. sit down, hydrate, let's go 💖

🌸 NAME 🌸

e1000_power_down_phy_copper — restores the copper link in case the PHY got powered down 💅

no cap that's literally the whole job description. she brings the link back. iconic.

✨ SYNOPSIS ✨

void e1000_power_down_phy_copper (struct e1000_hw *hw );

(and yes, the space before the ) is in there fr fr — copy it exactly, don't @ me 🙈)

💜 ARGUMENTS 💜

  • hw — pointer to the HW structure 🫶 that's the hardware struct you're handing her so she knows which NIC she's working with.

🦋 DESCRIPTION 🦋

so here's the vibe: sometimes the PHY gets powered down on purpose — to save power, or to turn off the link while a driver unloads, or because wake on lan is not enabled 🔌💤 but a link that's off needs to come back at some point, yeah?

that's her moment. she restores the link to previous settings — back to how things were before the whole power-down situation 💖 periodt.

🎀 reminder bestie: this is a void function, so she doesn't hand you back a value. she just does the thing. main character energy ✨

👑 SEE ALSO 👑

the home base file:

  • ./drivers/net/ethernet/intel/e1000e/phy.c

and her entire friend group — genuinely a whole group chat 😭 every one of these is referenced:

like… that's a lot of friends and every single one of them is invited to the function 💀 but we love a well-connected queen 👑

and that's the page!! 💜

cute lil sign-off bestie 🎀: this one's sourced from ./drivers/net/ethernet/intel/e... (yes the path gets all truncated like that, it's not a typo, iykyk 🙈), dated October 2026, and she answers to the name e1000_power_down_phy_copper(9) in the Kernel API Manual ✨ bye pookie, go restore a link 🦋💖

📦 where this page comes from