STRUCT FW_HEADER(9)

✨ struct fw_header(9) ✨

okay bestie, this is the manual page for struct fw_header(9) from the Kernel API Manual, and it's literally the header of the firmware file. lowkey iconic, ngl 💅

🌸 NAME 🌸

struct fw_header — header of the firmware file fr fr

🦋 SYNOPSIS 🦋

struct fw_header {
    u8 checksum[32];
    char version[RTL_VER_SIZE];
    struct fw_block blocks[];
};

🎀 Members 🎀

• checksum — checksum of sha256 which is calculated from the whole file except the checksum field of the file. That is, calculate sha256 from the version field to the end of the file. periodt ✨
• version — version of this firmware. slay 🫶
• blocks — the first firmware block of the file. main character energy 🔥

💜 SEE ALSO 💜

Kernel file ./drivers/net/usb/r8152.c struct fw_block(9), struct fw_mac(9), struct fw_phy_patch_key(9), struct fw_phy_nc(9) — go read those too, iykyk 👑

that's the whole vibe 🧚 from ./drivers/net/usb, October 2026 — mwah, no cap 💖