fw_elf_get_class(9)

✨ fw_elf_get_class(9) ✨

okay bestie, this is a page from the Kernel API Manual and honestly? it's short, it's sweet, and it's giving "tiny helper function that carries the whole elf situation on its back" 💅

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🎀 NAME 🎀

fw_elf_get_class — get elf class 🌸

like, that's it. that's the whole job. iconic behaviour honestly.

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🦋 SYNOPSIS 🦋

u8 fw_elf_get_class (const struct firmware *fw );

one function, one argument, returns a u8. no drama, no cap 💖

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💜 ARGUMENTS 💜

• fw — the ELF firmware image 🧚 that's the thing you're passing in, bestie, and yes it's a const struct firmware * so pls don't go mutating it, we're being polite here

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🔥 DESCRIPTION 🔥

okay so here's the little detail that makes this function work, and you're gonna want to remember it: it uses elf32_hdr to access the class.

wait, why? because the start of the struct is the same for both elf class 😭 that's the whole trick — the beginning of the struct lines up identically no matter which elf class you're dealing with, so peeking at it with elf32_hdr gets you exactly what you need. lowkey clever, highkey slay ✨

so no, you're not out here needing separate paths for each class. the header prefix ate and left no crumbs 👑

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🌈 RETURN 🌈

returns the elf class of the firmware 🫶 like, that's what you asked for, that's what you get, we love a straightforward queen

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/remoteproc/remoteproc_elf_helpers.h — go read it, bestie, it's literally right there 💖

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fr fr the whole header prefix matching thing is the bit that makes this work, so don't skip the description, okay? 🙈

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and that's the vibe check, bestie 💀 this one's filed under ./drivers/remoteproc and dated October 2026 — shoutout to the Kernel API Manual for keeping the receipts, periodt 🎀💅🦋