STRUCT NAND_ECC_ENGINE(9)

💅 struct nand_ecc_engine(9)

okay so this is a page from the Kernel API Manual, bestie — and we're talking about struct nand_ecc_engine, aka the ECC engine abstraction for NAND devices. yes it's giving "low-level kernel struct" energy and honestly? iconic. let's get into it 🫶

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✨ NAME ✨

struct nand_ecc_engine — the ECC engine abstraction for NAND devices, fr fr. it's the vibe layer that lets NAND code talk to whatever ECC engine is doing the heavy lifting 💖

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🌸 SYNOPSIS 🌸

here's the whole struct, exactly as it lives, no cap:

struct nand_ecc_engine {
    struct device *dev;
    struct list_head node;
    const struct nand_ecc_engine_ops *ops;
    enum nand_ecc_engine_integration integration;
    void *priv;
 };

like... five fields. five. main character fields only 👑

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🎀 Members 🎀

okay so let's meet the cast, one by one:

• dev — the host device. it's the home base, the origin story, the "who do you belong to" of it all 🏠
• node — a private field for registration time. it's not for you, it's for the registration machinery. mind your business, bestie 🙈
• ops — the ECC engine operations. this is where the actual do-the-thing function pointers live. the whole engine's personality is in here 🔥
• integration — how the engine is integrated with the host. and listen, important caveat: this is only relevant on NAND_ECC_ENGINE_TYPE_ON_HOST engines. so if you're not on-host, this field is lowkey just vibing, not pulling weight 💀
• priv — private data. the engine's personal little stash. driver-specific, don't touch ✨

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🦋 SEE ALSO 🦋

so much family here, it's a whole reunion. first, the kernel file: ./include/linux/mtd/nand.h — that's where this struct calls home 💜

and then the extended fam:

• struct nand_memory_organization(9)
• struct nand_row_converter(9)
• struct nand_pos(9)
• enum nand_page_io_req_type(9)
• struct nand_page_io_req(9)
• enum nand_ecc_engine_type(9)
• enum nand_ecc_placement(9)
• enum nand_ecc_algo(9)
• struct nand_ecc_props(9)
• struct nand_bbt(9)
• struct nand_ops(9)
• struct nand_ecc_context(9)
• struct nand_ecc_engine_ops(9)
• enum nand_ecc_engine_integration(9)
• struct nand_ecc_req_tweak_ctx(9)
• struct nand_ecc(9)
• struct nand_device(9)
• struct nand_io_iter(9)
• mtd_to_nanddev(9)
• nanddev_to_mtd(9)
• nanddev_page_size(9)
• nanddev_per_page_oobsize(9)
• nanddev_pages_per_eraseblock(9)
• nanddev_pages_per_target(9)
• nanddev_eraseblocks_per_lun(9)
• nanddev_eraseblocks_per_target(9)
• nanddev_target_size(9)
• nanddev_neraseblocks(9)
• nanddev_size(9)
• nanddev_get_memorg(9)
• nanddev_get_ecc_conf(9)
• nanddev_get_ecc_nsteps(9)
• nanddev_get_ecc_bytes_per_step(9)
• nanddev_get_ecc_requirements(9)
• nanddev_set_ecc_requirements(9)
• nanddev_register(9)
• nanddev_unregister(9)
• nanddev_set_of_node(9)
• nanddev_get_of_node(9)
• nanddev_offs_to_pos(9)
• nanddev_pos_cmp(9)
• nanddev_pos_to_offs(9)
• nanddev_pos_to_row(9)
• nanddev_pos_next_target(9)
• nanddev_pos_next_lun(9)
• nanddev_pos_next_eraseblock(9)
• nanddev_pos_next_page(9)
• nanddev_bbt_pos_to_entry(9)
• nanddev_bbt_is_initialized(9)

like, that's the entire friend group. go read them, iykyk 📚

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and that's the page, bestie! 🎀 source spot is ./include/linux/mtd, dated October 2026, and it'll forever be signed struct nand_ecc_engine(9). slay, go write some NAND drivers 💅✨