ixgbe_x550em_a_has_mii(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ixgbe_x550em_a_has_mii — Kernel API Manual, section 9

okay so bestie, welcome to the ixgbe_x550em_a_has_mii glow-up page ✨ this is from the Kernel API Manual (section 9, she's fancy), and honestly? she's a tiny function with one very specific job and she does it iconically.

✨ NAME ✨

ixgbe_x550em_a_has_mii — is this the first ixgbe x550em_a PCI function? 🎀

like. that's the whole question. that's the vibe check.

🌸 SYNOPSIS 🌸

bool ixgbe_x550em_a_has_mii (struct ixgbe_hw *hw );

she takes one pointer and hands you back a bool. short king behavior, honestly 👑

🦋 ARGUMENTS 🦋

  • hw — pointer to hardware structure. yes bestie, the whole hardware struct, she just wants a peek 🔍

💖 DESCRIPTION 💖

Returns true if hw points to the lowest numbered PCI B:D.F x550_em_a device in the SoC. periodt. that's the check 💅

here's the lore though, and it's lowkey important: there are up to 4 MACs sharing a single MDIO bus on the x550em_a. four. sharing one bus. it's giving group project where everybody wants the aux cord 😭

but we only want to register one MDIO bus — just the one, thanks — so this function exists to figure out which hw is the chosen one. main character energy only. the rest of them can sit down 🙈

🔥 SEE ALSO 🔥

the whole friend group, no cap — every single one of these deserves a follow back 🫶

Kernel file ./drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c

bestie if you got this far, you're a real one 💀 sixty-something cross-references and not a single one skipped. that's commitment. that's academic weapon energy.

okay that's the page!! sourced from ./drivers/net/ethernet/intel/i..., dated October 2026, filed under ixgbe_x550em_a_has_mii(9) — mwah, go read the man page bestie, ily 🍓💜

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