igc_update_nvm_checksum(9)

💅 igc_update_nvm_checksum — a lil' kernel API manual moment

okay so bestie, welcome to the Kernel API Manual ✨ this one's igc_update_nvm_checksum(9) and honestly? she's doing the most important little chore in the whole EEPROM house. let's get into it 🫶

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🌸 NAME 🌸

igc_update_nvm_checksum — Update EEPROM checksum 🎀

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✨ SYNOPSIS ✨

s32 igc_update_nvm_checksum (struct igc_hw *hw );

that's it. one function, one pointer, one s32 coming back atcha. iconic behavior honestly 💅

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🦋 ARGUMENTS 🦋

• hw — pointer to the HW structure 💖 literally just a pointer to the hardware struct, that's the whole vibe.

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🔥 DESCRIPTION 🔥

so what she does is update the EEPROM checksum, and the way she does it is lowkey meticulous ngl 👑

first she reads and adds each word of the EEPROM, going all the way up to the checksum — every single word, no skipping, she's thorough like that 🧚

then she calculates the EEPROM checksum and writes the value to the EEPROM ✨

that's the whole arc. read, add, calculate, write. slay. periodt. 💀

bestie pls note: this is the update girlie. if you were looking for the one that just checks the thing, that's a different function, see below ⬇️ 👀

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💜 SEE ALSO 💜

• Kernel file ./drivers/net/ethernet/intel/igc/igc_nvm.c — the source file, go read her fr fr 📖
• igc_poll_eerd_eewr_done(9) 🌈
• igc_read_nvm_eerd(9) ⭐
• igc_read_mac_addr(9) 🍓
• igc_validate_nvm_checksum(9) 👑

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and that's the page, bestie!! 🎀 source/version is ./drivers/net/ethernet/intel/igc, dated October 2026, and yes the header said igc_update_nvm_checksum(9) and the footer said it again because she loves a callback 💖 mwah, go checksum something 🌸