igb_acquire_nvm(9)

💅 igb_acquire_nvm — like, the manual page bestie

okay so this is the igb_acquire_nvm(9) page from the Kernel API Manual, and honestly? it's a little baddie about EEPROM permissions. let's get into it 🎀

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✨ NAME ✨

igb_acquire_nvm — the generic "hey can i please touch the EEPROM" request 💖

✨ SYNOPSIS ✨

s32 igb_acquire_nvm (struct e1000_hw *hw );

✨ ARGUMENTS ✨

• hw — a pointer to the HW structure 🫶 literally just a pointer, she's pointing at the hardware struct, that's her whole job

✨ DESCRIPTION ✨

so here's the vibe 👑: you set the EEPROM access request bit, then you wait for the EEPROM access grant bit. that's it, that's the function. very "please respond to my text" energy ngl 😭

if the access grant bit is set → return successful ✨ slay, you're in, the EEPROM said yes 💅

if it's not set → clear the EEPROM access request and return -E1000_ERR_NVM (-1) 💀 like okay fine, no EEPROM for you, request rescinded, we move.

bestie pls note: the waiting is real here — you're not just asking, you're waiting on the grant bit. don't skip the vibe check on that return value or you'll be out here thinking you got access when you fr fr did not 🙈

✨ SEE ALSO ✨

• Kernel file ./drivers/net/ethernet/intel/igb/e1000_nvm.c 🦋 (that's where the source lives, iykyk)
• igb_raise_eec_clk(9)
• igb_lower_eec_clk(9)
• igb_shift_out_eec_bits(9)
• igb_shift_in_eec_bits(9)
• igb_poll_eerd_eewr_done(9)
• igb_standby_nvm(9)
• e1000_stop_nvm(9)
• igb_release_nvm(9)
• igb_ready_nvm_eeprom(9)
• igb_read_nvm_spi(9)
• igb_read_nvm_eerd(9)
• igb_write_nvm_spi(9)
• igb_read_part_string(9)
• igb_read_mac_addr(9)
• igb_validate_nvm_checksum(9)
• igb_update_nvm_checksum(9)
• igb_get_fw_version(9)

like, the whole EEPROM friend group showed up to the function 😭 genuinely iconic lineup, every single one of them matters 🧚

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and that's the page!! 💜 it lives over in ./drivers/net/ethernet/intel/igb and the version/date stamp on this one is October 2026 — so yeah, mark your calendar bestie, the acquisition era is dated and everything 📅✨ mwah, go get that grant bit 🌸