mtd_ooblayout_ecc(9)

🎀 mtd_ooblayout_ecc(9) 🎀

okay so bestie, welcome to the Kernel API Manual 💖 this page is all about grabbing the OOB region definition of a specific ECC section, and it's lowkey iconic. It's giving “tiny helper, big MTD energy” ✨

🌸 NAME 🌸

mtd_ooblayout_ecc — Get the OOB region definition of a specific ECC section.

🦋 SYNOPSIS 🦋

int mtd_ooblayout_ecc (struct mtd_info *mtd , int section , struct
       mtd_oob_region *oobecc );

✨ ARGUMENTS ✨

• mtd — the MTD device structure, aka the device we're working with.
• section — ECC section. Depending on the layout you may have all the ECC bytes stored in a single contiguous section, or one section per ECC chunk (and sometime several sections for a single ECC ECC chunk) 😭. Layouts can be weird, fr fr.
• oobecc — OOB region struct filled with the appropriate ECC position information. It's the output bestie 🫶.

💅 DESCRIPTION 💅

This function returns ECC section information in the OOB area. If you want to get all the ECC bytes information, then you should call mtd_ooblayout_ecc(mtd, section++, oobecc) until it returns -ERANGE — yes, loop that bad boy until it taps out 🔥.

Returns zero on success, a negative error code otherwise. So 0 is the slay, negative is the “oop” 💀.

🔥 SEE ALSO 🔥

Kernel file ./drivers/mtd/mtdcore.c plus these icons:

• mtd_wunit_to_pairing_info(9)
• mtd_pairing_info_to_wunit(9)
• mtd_pairing_groups(9)
• add_mtd_device(9)
• del_mtd_device(9)
• mtd_device_parse_register(9)
• mtd_device_unregister(9)
• register_mtd_user(9)
• unregister_mtd_user(9)
• get_mtd_device(9)
• of_get_mtd_device_by_node(9)
• get_mtd_device_nm(9)
• mtd_ooblayout_free(9)
• mtd_ooblayout_find_region(9)
• mtd_ooblayout_find_eccregion(9)
• mtd_ooblayout_get_bytes(9)
• mtd_ooblayout_set_bytes(9)
• mtd_ooblayout_count_bytes(9)
• mtd_ooblayout_get_eccbytes(9)
• mtd_ooblayout_set_eccbytes(9)
• mtd_ooblayout_get_databytes(9)
• mtd_ooblayout_set_databytes(9)
• mtd_ooblayout_count_freebytes(9)
• mtd_ooblayout_count_eccbytes(9)
• mtd_kmalloc_up_to(9)

okay bye bestie 🫶 this page is sourced from ./drivers/mtd in the Kernel API Manual, dated October 2026, and honestly? iconic 💅✨