mtd_ooblayout_free(9)

📦 version 7.3.1, in nixpkgs unstable

mtd_ooblayout_free(9) — Kernel API Manual 💖

🎀 NAME 🎀

mtd_ooblayout_free — get the OOB region definition of a specific free section. Slay, that's the assignment, bestie. 💅

💅 SYNOPSIS 💅

int mtd_ooblayout_free (struct mtd_info *mtd , int section , struct
       mtd_oob_region *oobfree );

🫶 ARGUMENTS 🫶

  • mtd — the MTD device structure. Like, the device we're working with. ✨
  • section — the free section you're interested in. Depending on the layout, you may have all the free bytes stored in a single contiguous section, or one section per ECC chunk plus an extra section for the remaining bytes (or other funky layout). 🌀
  • oobfree — the OOB region struct filled with the appropriate free position information. It's giving "here's where the free stuff is." 🎀

🌸 DESCRIPTION 🌸

Okay so mtd_ooblayout_free returns the free bytes position in the OOB area. The way that's its whole job? Obsessed. 😭 If you want to get all the free bytes information, then you should call mtd_ooblayout_free(mtd, section++, oobfree) until it returns -ERANGE. That's the loop, lowkey iconic, iykyk. 🔁

It returns zero on success, a negative error code otherwise. No cap. 💯

🔥 SEE ALSO 🔥

Kernel file ./drivers/mtd/mtdcore.c, plus the whole squad:

That's the whole page, bestie 💖 brought to you by source/version ./drivers/mtd, dated October 2026. Mwah 💋✨ periodt.

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