nand_read_page_syndrome(9)

💅 nand_read_page_syndrome(9) 💅

okay so bestie, we're in the Kernel API Manual today and this page is literally about nand_read_page_syndrome — one of those [REPLACEABLE] hero functions. it's giving "hardware does the math so you don't have to" energy and i'm obsessed. let's get into it 🫶

---

🌸 NAME 🌸

nand_read_page_syndrome — a [REPLACEABLE] hardware ECC syndrome based page read. yeah. that's the whole vibe. 🦋

---

✨ SYNOPSIS ✨

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

like, copy it exactly, don't @ me — the spacing is part of the look 💅

---

🎀 ARGUMENTS 🎀

• chip — the nand chip info structure, aka the whole personality file for your flash chip 💖
• buf — the buffer where the read data goes. it's the little home for your bytes 🏠
• oob_required — when the caller is like "bestie i NEED the OOB data", this gets the OOB read into chip->oob_poi 🌈
• page — the page number you wanna read. which page? this page. periodt 📖

---

🔥 DESCRIPTION 🔥

okay so the hw generator literally calculates the error syndrome automatically. no cap. the hardware is the main character here and it ate 💅✨

and because the hardware is doing all that, we need a special oob layout and handling. like, you can't just use the regular oob setup, the syndrome situation needs its own lil arrangement. iykyk 🧚

---

👑 SEE ALSO 👑

the kernel file is at ./drivers/mtd/nand/raw/nand_base.c and honestly the whole friend group is here:

nand_extract_bits(9), nand_select_target(9), nand_deselect_target(9), nand_release_device(9), nand_bbm_get_next_page(9), nand_block_bad(9), nand_region_is_secured(9), nand_get_device(9), nand_check_wp(9), nand_fill_oob(9), nand_do_write_oob(9), nand_default_block_markbad(9), nand_markbad_bbm(9), nand_block_markbad_lowlevel(9), nand_block_isreserved(9), nand_block_checkbad(9), nand_soft_waitrdy(9), nand_gpio_waitrdy(9), panic_nand_wait(9), nand_reset_interface(9), nand_setup_interface(9), nand_choose_best_sdr_timings(9), nand_choose_best_nvddr_timings(9), nand_choose_best_timings(9), nand_choose_interface_config(9), nand_fill_column_cycles(9), nand_read_page_op(9), nand_read_param_page_op(9), nand_change_read_column_op(9), nand_read_oob_op(9), nand_prog_page_begin_op(9), nand_prog_page_end_op(9), nand_prog_page_op(9), nand_change_write_column_op(9), nand_readid_op(9), nand_status_op(9), nand_exit_status_op(9), nand_erase_op(9), nand_set_features_op(9), nand_get_features_op(9), nand_reset_op(9), nand_read_data_op(9), nand_write_data_op(9), struct nand_op_parser_ctx(9), nand_op_parser_must_split_instr(9), nand_op_parser_match_pat(9), nand_op_parser_exec_op(9), nand_subop_get_addr_start_off(9), nand_subop_get_num_addr_cyc(9), nand_subop_get_data_start_off(9), nand_subop_get_data_len(9), nand_reset(9), nand_get_features(9), nand_set_features(9), nand_read_page_raw_notsupp(9), nand_read_page_raw(9), nand_monolithic_read_page_raw(9), nand_read_page_raw_syndrome(9), nand_read_page_swecc(9), nand_read_subpage(9), nand_read_page_hwecc(9), nand_read_page_hwecc_oob_first(9), nand_transfer_oob(9), nand_setup_read_retry(9), nand_do_read_ops(9), nand_read_oob_std(9), nand_read_oob_syndrome(9), nand_write_oob_std(9), nand_write_oob_syndrome(9), nand_do_read_oob(9), nand_read_oob(9), nand_write_page_raw_notsupp(9), nand_write_page_raw(9), nand_monolithic_write_page_raw(9), nand_write_page_raw_syndrome(9), nand_write_page_swecc(9), nand_write_page_hwecc(9), nand_write_subpage_hwecc(9), nand_write_page_syndrome(9), nand_write_page(9), nand_do_write_ops(9), panic_nand_write(9), nand_write_oob(9), nand_erase(9), nand_erase_nand(9), nand_sync(9), nand_block_isbad(9), nand_block_markbad(9), nand_suspend(9), nand_resume(9), nand_shutdown(9), nand_lock(9), nand_unlock(9), rawnand_dt_parse_gpio_cs(9), nand_scan_ident(9), nand_check_ecc_caps(9), nand_match_ecc_req(9), nand_maximize_ecc(9), nand_ecc_choose_conf(9), nand_scan_tail(9), nand_scan_with_ids(9), nand_cleanup(9)

and that's the whole squad 😭💀 every single one, no skips, we don't do skipping here 💜

---

lowkey a reminder bestie: this whole thing lives under ./drivers/mtd/nand/raw, and the page is stamped October 2026 — so like, future vibes but make it kernel. don't lose the receipt 🧾✨

stay slay, read those pages, and may your syndrome always be hardware-generated 💖🎀🦋⭐👑