igb_update_...ecksum_82580(9)

📦 version 7.3.1, in nixpkgs unstable

💖 igb_update_nvm_checksum_82580 💖

okay so bestie, welcome to the igb_update_...ecksum_82580(9) page — yes that's the Kernel API Manual, and yes the title got truncated by the man page renderer, we don't talk about it 💀. Anyway. Sit down, hydrate, and let's talk about EEPROM checksums for the Intel 82580. It's giving niche but iconic.

✨ NAME ✨

igb_update_nvm_checksum_82580 — Update EEPROM checksum. That's it, that's the whole vibe. 🎀

🦋 SYNOPSIS 🦋

s32 igb_update_nvm_checksum_82580 (struct e1000_hw *hw );

literally one function, one argument, no drama. slay.

🌸 ARGUMENTS 🌸

  • hw — pointer to the HW structure. that's your hardware bestie right there, she's holding everything together 🫶

👑 DESCRIPTION 👑

So here's the tea ☕: this function updates the EEPROM section checksums for all 4 ports — all four of them, no port left behind 💅 — by reading and adding each word of the EEPROM up to the checksum. Like, it walks the whole thing word by word, adding as it goes.

Then it calculates the EEPROM checksum and writes that value back to the EEPROM. math girl summer. 🔥

no cap, that's the entire function. she reads, she adds, she writes. main character energy honestly.

⭐ SEE ALSO ⭐

the kernel file in question, bestie:

  • ./drivers/net/ethernet/intel/igb/e1000_82575.c

and now the friend group, aka the extended igb cinematic universe (iykyk):

like, that's a whole roster. every single one of them. no cuts. 🫶

ngl bestie, if you're messing with NVM checksums on real hardware, do it carefully — this page isn't warning you about anything specific, but checksum writes to EEPROM are still checksum writes to EEPROM. be chill, be correct. 💀

and that's the page!! 🌈 this absolute gem lives in ./drivers/net/ethernet/intel/igb, and she was documented back in October 2026, immortalized forever as igb_update_...ecksum_82580(9). periodt. 💜✨🎀

📦 where this page comes from