STRUCT NAND_OP_PARSER(9)

👑 struct nand_op_parser(9) — like, the NAND controller operation parser descriptor, bestie 💅

okay so we're deep in the Kernel API Manual today and this one is literally the little struct that tells your NAND controller how to vibe-check operations ✨ stay with me, it's actually so good.

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🌸 NAME 🌸

struct nand_op_parser — the NAND controller operation parser descriptor 🎀

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✨ SYNOPSIS ✨

struct nand_op_parser {
    const struct nand_op_parser_pattern *patterns;
    unsigned int npatterns;
 };

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🦋 Members 🦋

• patterns — array of supported patterns. yes bestie, an actual array, it's giving registry energy 💖
• npatterns — the length of the patterns array. gotta know how many we're working with, no cap 🔥

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💜 Description 💜

okay so the parser descriptor is just an array of supported patterns. that's it. that's the whole vibe. 🙈 this array gets iterated by nand_op_parser_exec_op every single time it tries to execute a NAND operation, or every time it tries to determine if a specific operation is supported. literally every time, it's committed 💅

and here's the part you actually need to remember, bestie, so like, pay attention 👀 — patterns will be tested in their declaration order, and the first match will be taken. so it's genuinely important that you order your patterns appropriately, and that means placing the simple/inefficient patterns at the end of the list. usually, this is where you put single instruction patterns. main character energy goes first, lowkey-wasteful patterns go last 🫶

ngl the ordering thing is not a suggestion, it's the whole game — first match wins, so a lazy pattern sitting at the top of your list will absolutely steal the moment from a better one 😭

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⭐ SEE ALSO ⭐

Kernel file ./include/linux/mtd/rawnand.h — and like, the whole friend group:

• struct nand_parameters(9)
• struct nand_id(9)
• struct nand_ecc_step_info(9)
• struct nand_ecc_caps(9)
• struct nand_ecc_ctrl(9)
• struct nand_sdr_timings(9)
• struct nand_nvddr_timings(9)
• enum nand_interface_type(9)
• struct nand_interface_config(9)
• nand_interface_is_sdr(9)
• nand_interface_is_nvddr(9)
• nand_get_sdr_timings(9)
• nand_get_nvddr_timings(9)
• struct nand_op_cmd_instr(9)
• struct nand_op_addr_instr(9)
• struct nand_op_data_instr(9)
• struct nand_op_waitrdy_instr(9)
• enum nand_op_instr_type(9)
• struct nand_op_instr(9)
• struct nand_subop(9)
• struct nand_op_parser_addr_constraints(9)
• struct nand_op_parser_data_constraints(9)
• struct nand_op_parser_pattern_elem(9)
• struct nand_op_parser_pattern(9)
• struct nand_operation(9)
• struct nand_controller_ops(9)
• struct nand_controller(9)
• struct nand_legacy(9)
• struct nand_chip_ops(9)
• struct nand_manufacturer(9)
• struct nand_secure_region(9)
• struct nand_chip(9)
• nand_get_interface_config(9)
• struct nand_flash_dev(9)
• nand_opcode_8bits(9)
• nand_get_data_buf(9)

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and that's the tea 🍓 this page lives in ./include/linux/mtd, dated October 2026, and it's serving struct nand_op_parser(9) realness from the Kernel API Manual — mwah, go order your patterns correctly, ily 💖✨🎀