fdt_header_size(9)

📦 version 7.3.1, in nixpkgs unstable

💖 fdt_header_size(9) — the vibe check on your DTB header 💖

okay so bestie, welcome to fdt_header_size(9), a Kernel API Manual page and honestly? a little icon. she's short, she's sweet, she tells you how big a flattened device tree's header is. that's the whole gig. no cap. 🎀

✨ NAME ✨

fdt_header_size — return the size of the tree's header 🦋

like literally just the header size. she is not doing anything else for you today. main character energy but make it minimal. 💅

🌸 SYNOPSIS 🌸

size_t fdt_header_size (const void *fdt );

one function, one argument, zero drama. copy it exactly, don't get cute with the spacing — yes, there's a space before that closing paren and we're respecting it. 🙈

🧚 ARGUMENTS 🧚

  • fdt — pointer to a flattened device tree. that's it. that's the whole input. she just wants the pointer, she's lowkey easy to please. 🫶

⭐ RETURN ⭐

size of DTB header in bytes 🔥

so when it comes back, you get a size_t and it's counting bytes of the DTB header. byte-by-byte accurate. periodt. 💜

ngl if you were hoping for more lore, this page is not that. she's a one-liner queen and we respect her for it. 👑

🌈 SEE ALSO 🌈

okay this is the part where the page goes off. buckle up bestie, the whole libfdt family is here and they all pulled up to the function:

first, where she lives: Kernel file ./scripts/dtc/libfdt/libfdt.h 📍

and then, in order, the entire extended friend group:

like. ninety-six besties. she knows everyone at the party. 💀✨

💖 that's the page!! short, sweet, header-sized. mwah. 🍓

and a lil sign-off from the source, since we're being proper about it: this one's brought to you by ./scripts/dtc/libfdt, dated October 2026, filed under fdt_header_size(9) in your friendly neighbourhood Kernel API Manual. bye bestie, go read a header 🧚‍♀️👑🦋

📦 where this page comes from