read_abs_bbt(9)

📦 version 7.3.1, in nixpkgs unstable

🦋 read_abs_bbt — the "read the bad block table from a given page" girlie

okay so this one lives in the Kernel API Manual (section 9, kernel space, very demure, very mindful) and it's genuinely one of the most useful little gremlins in the NAND bad-block-table family. let's get into it 💅

✨ NAME ✨

read_abs_bbt — [GENERIC] Read the bad block table starting at a given page. that's it, that's the vibe 🎀

🌸 SYNOPSIS 🌸

int read_abs_bbt (struct nand_chip *this , uint8_t *buf , struct
nand_bbt_descr *td , int chip );

yes bestie, that's the whole signature, don't come for me about the line break, that's literally how it's written 😭

🫶 ARGUMENTS 🫶

  • this — the NAND chip object. the main character of this whole situation ngl 👑
  • buf — a temporary buffer. it's giving "scratch space", it's giving "not the moment for permanence" 🙈
  • td — the descriptor for the bad block table. it's the blueprint, the mood board, the whole plan 🌈
  • chip — read the table for a specific chip, or -1 to read all chips. onl applies if the NAND_BBT_PERCHIP option is set — like, this parameter only has a job when that flag is on, otherwise it's just standing there 💀

💖 DESCRIPTION 💖

Read the bad block table for all chips starting at a given page. we're assuming the bbt bits are in consecutive order — no cap, that's the assumption, take it or leave it ✨

🌟 SEE ALSO 🌟

The kernel file lives at ./drivers/mtd/nand/raw/nand_bbt.c and honestly the whole friend group is here, so let me introduce you 🧚

like, the entire roster. ate and left no crumbs 🔥

okay that's the page!! sources: ./drivers/mtd/nand/raw, dated October 2026 — mwah, love u, go read ur bad blocks bestie 💜🍓

📦 where this page comes from