e1000e_read_phy_reg_mdic(9)

📦 version 7.3.1, in nixpkgs unstable

💅 e1000e_read_phy_reg_mdic(9) — like, the whole glow-up

okay so this page lives in the Kernel API Manual and it's all about one tiny little function that reads a register. yes bestie, a register. it's giving low-level but make it iconic. ✨

🎀 NAME

e1000e_read_phy_reg_mdic — Read MDI control register

(that's it. that's the whole name section. short and slay.)

🌸 SYNOPSIS

s32 e1000e_read_phy_reg_mdic (struct e1000_hw *hw , u32 offset , u16
*data );

like, three args, returns an s32, no cap. 🫶

🦋 ARGUMENTS

  • hw — pointer to the HW structure. your hardware homegirl, basically. everything lives in here.
  • offset — register offset to be read. this is which register you're peeking at 👀
  • data — pointer to the read data. this is where the answer gets dropped off when the function is done. it's a u16 *, so mind your types, bestie.

💖 DESCRIPTION

Reads the MDI control register in the PHY at offset and stores the information read to data.

fr fr that's the whole thing. you hand it a hw, you tell it an offset, you give it a data pointer to write into, and it goes and grabs whatever's sitting in that MDI control register in the PHY. no drama, no surprises, just register reading. 💅

ngl this one is a supporting-character function — the other *_phy_reg_* functions are the ones doing the heavy lifting. but she shows up and she does her job and that's main character energy too. 🔥

👑 SEE ALSO

okay so this list is long. like, genuinely. bundle up. it's the whole phy.c friend group and they all showed up to the group chat:

like I said. the whole friend group. iykyk 😭

⭐ source vibes: this page comes from ./drivers/net/ethernet/intel/e... (yes the footer truncates it, that's just how the man page renders it, don't come for me 🙈) and it's dated October 2026.

okay bye bestie, go read some registers 💜 🧚 🍓

Kernel API Manual · October 2026 · e1000e_read_phy_reg_mdic(9) — periodt. 💅✨

📦 where this page comes from