igb_phy_has_link(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, welcome to the igb_phy_has_link page 💖 this one lives in the Kernel API Manual, and it's giving "tiny function, very specific job, absolutely iconic" energy. Let's get into it 🫶

🌸 NAME 🌸

igb_phy_has_link — literally just polls the PHY for link 👀 that's it, that's the whole vibe

🎀 SYNOPSIS 🎀

s32 igb_phy_has_link (struct e1000_hw *hw , u32 iterations , u32
usec_interval , bool *success );

no cap, that's the exact signature — copy it character for character or the compiler will absolutely humble you 😭

🦋 ARGUMENTS 🦋

  • hw — pointer to the HW structure 🌈 like, the hardware context you're working with
  • iterations — number of times to poll for link 🔁 how many chances you're giving it, bestie
  • usec_interval — delay between polling attempts ⏳ the lil breather in between each try
  • success — pointer to whether polling was successful or not ✅ the receipts get written here

💅 DESCRIPTION 💅

So here's the tea: this function polls the PHY status register for link, and it does it iterations number of times 🔥 that's the entire bit. Main character behavior honestly.

ngl it's a polling loop, so it's gonna keep checking until it's done checking — plan your wait time accordingly 🕰️

👑 SEE ALSO 👑

If you liked this one, the whole extended universe is right here — go read the source, it's literally in the kernel tree:

Kernel file ./drivers/net/ethernet/intel/igb/e1000_phy.c

and the friend group 💜:

periodt 💅

and that's the page, bestie 🧚‍♀️ brought to you from ./drivers/net/ethernet/intel/igb, dated October 2026 — mwah, go touch some grass (or a PHY status register) 💜⭐

📦 where this page comes from