e1000_set_d..._state_82571(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000_set_d0_lplu_state_82571 — like, the LPLU D0 state setter, bestie

okay so this is a page from the Kernel API Manual, section 9, and it's all about e1000_set_d0_lplu_state_82571. yes the name is a whole mouthful, we're gonna get through it together 🫶

✨ NAME ✨

e1000_set_d0_lplu_state_82571 — Set Low Power Linkup D0 state

like, it sets the Low Power Linkup D0 state. that's the whole vibe. 💅

🌸 SYNOPSIS 🌸

s32 e1000_set_d0_lplu_state_82571 (struct e1000_hw *hw , bool active );

she takes two things and returns an s32, periodt.

🎀 ARGUMENTS 🎀

  • hw — pointer to the HW structure. it's giving "hand me the hardware, i'll handle the rest" energy 👑
  • active — true to enable LPLU, false to disable. binary queen, no in-between 💖

🦋 DESCRIPTION 🦋

So what she does: she sets the LPLU D0 state according to the active flag. cute, simple.

But wait, there's lore 😭 — when you're activating LPLU, this function also disables smart speed, and vice versa. like they literally cannot both be on, it's a whole one-at-a-time situation.

And here's the vibe check 🚨: LPLU will not be activated unless the device autonegotiation advertisement meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. no meeting the standard? no LPLU. that's the rule, ngl.

Also important, bestie: this is a function pointer entry point only, called by PHY setup routines. so don't be out here calling it yourself like it's a main character — she's a supporting role in the PHY setup storyline 🌈

💜 SEE ALSO 💜

the kernel file lives at ./drivers/net/ethernet/intel/e1000e/82571.c and honestly the whole friend group is here, brace yourself 🫶

ngl that's 37 cross-references, she's thriving in the e1000e ecosystem 🌸

and that's the page, bestie!! this one comes from ./drivers/net/ethernet/intel/e... (the path got a lil truncated, we don't gatekeep) and it's dated October 2026, still signed e1000_set_d..._state_82571(9) at the bottom — iconic, no notes 💖✨🎀

📦 where this page comes from