ixgbe_read_i2c_byte_82599(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ixgbe_read_i2c_byte_82599(9) 💅

okay so bestie, this is a page from the Kernel API Manual — yeah, the big serious kernel one — and honestly? it's a little snack. it's all about reading one (1) single byte over I2C from an SFP module's EEPROM. one byte. that's the whole gig. and it ate. ✨

🌸 NAME 🌸

ixgbe_read_i2c_byte_82599 — literally reads an 8 bit word over I2C. that's it, that's the vibe. 🎀

🦋 SYNOPSIS 🦋

int ixgbe_read_i2c_byte_82599 (struct ixgbe_hw *hw , u8 byte_offset , u8
dev_addr , u8 *data );

💖 ARGUMENTS 💖

  • hw — pointer to the hardware structure. your main character struct, the one carrying all the hardware lore. 👑
  • byte_offset — the byte offset to read. like, which byte bestie. be specific. 📍
  • dev_addr — the address to read from. 🏠
  • data — the value read. it's a pointer, so the answer gets dropped in here on the way out. 💌

✨ DESCRIPTION ✨

so what it actually does: it performs a byte read operation to the SFP module's EEPROM over the I2C interface, at a device address you specify. that's the whole plot. no plot twists. just vibes, a struct pointer, and exactly eight bits coming back at you. 🌈

like, it's giving "small function, big responsibility." iykyk. 🧚

lowkey important: data is where the read value lands — so don't go ignoring it, bestie. that's the whole point of the call. 🫶

👀 SEE ALSO 👀

kernel file ./drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c — that's where this lives, in case you wanna go snooping. 🔥

and here's the whole friend group, all of them, no cap, none skipped:

and that's the page, bestie!! 🍓 the source tag on this one is ./drivers/net/ethernet/intel/i... (yeah it got cut off mid-path, tragic, the kernel said "that's all you get" 💀) and it's dated October 2026. so go forth, read your byte, slay. periodt. 💜🎀✨

📦 where this page comes from