cafe_nand_read_page(9)

💅 cafe_nand_read_page(9) — the Kernel API Manual, but make it make sense

okay so bestie, welcome to the cafe_nand_read_page(9) page from the Kernel API Manual ✨ this is the whole vibe, and we're gonna get through it together, no cap 🫶

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🌸 NAME 🌸

cafe_nand_read_page — a [REPLACEABLE] page read that's all about that hardware ECC syndrome life 💖

like, the brackets are literally part of the name, that's not me being cute (well, I'm always being cute, but the brackets are canon).

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✨ SYNOPSIS ✨

int cafe_nand_read_page (struct nand_chip *chip , uint8_t *buf , int
oob_required , int page );

that's the whole signature, copied exactly, don't come for me 👑

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🎀 ARGUMENTS 🎀

• chip — the nand chip info structure, aka where all the chip tea lives 🫖
• buf — the buffer where the read data gets stored, bestie. it goes here.
• oob_required — the caller expects the OOB data read to go to chip->oob_poi 👀 yes, that exact path, write it down
• page — the page number to read 🔥

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🦋 DESCRIPTION 🦋

okay so here's the thing: the hw generator calculates the error syndrome automatically 💅 like it does it itself, no manual labour required, we love a self-sufficient queen.

and because of that — the way that the hw generator is doing all that — we need a special oob layout and handling 🌈 that's literally the whole reason this function exists. special layout, special handling, main character energy, periodt.

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💜 SEE ALSO 💜

• Kernel file ./drivers/mtd/nand/raw/cafe_nand.c — go read the source, iykyk 📖

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🌟 the cute sign-off 🌟

so this page came from ./drivers/mtd/nand/raw (yes, that's the source/version bit), dated October 2026 ⭐ and the page itself is, of course, cafe_nand_read_page(9) — that's the footer, folded into this little goodbye 🎀

mwah, go read your pages, ily, bye 🧚💖