spi_nor_parse_4bait(9)

🦋 spi_nor_parse_4bait(9) — Kernel API Manual 🦋

okay so bestie, welcome to the spi_nor_parse_4bait(9) page from the Kernel API Manual. We're parsing the 4-Byte Address Instruction Table, and honestly? iconic little SFDP moment ✨. No cap, here's the whole rundown.

🎀 NAME 🎀

spi_nor_parse_4bait — parse the 4-Byte Address Instruction Table 💖

✨ SYNOPSIS ✨

int spi_nor_parse_4bait (struct spi_nor *nor , const struct sfdp_parameter_header *param_header );

🫶 ARGUMENTS 🫶

• nor — pointer to a struct spi_nor. That's the struct being handed in, periodt.
• param_header — pointer to the struct sfdp_parameter_header describing the 4-Byte Address Instruction Table length and version. It's giving "metadata bestie" 🎀.

💅 RETURN 💅

0 on success, -errno otherwise. So yeah: zero is the slay outcome, negative errno is the "oop" outcome 😭.

🌈 SEE ALSO 🌈

Kernel file ./drivers/mtd/spi-nor/sfdp.c and the whole friend group:

• spi_nor_read_raw(9)
• spi_nor_read_sfdp(9)
• spi_nor_read_sfdp_dma_unsafe(9)
• spi_nor_set_erase_settings_from_bfpt(9)
• spi_nor_map_cmp_erase_type(9)
• spi_nor_sort_erase_mask(9)
• spi_nor_regions_sort_erase_types(9)
• spi_nor_parse_bfpt(9)
• spi_nor_smpt_addr_nbytes(9)
• spi_nor_smpt_read_dummy(9)
• spi_nor_get_map_in_use(9)
• spi_nor_region_check_overlay(9)
• spi_nor_init_non_uniform_erase_map(9)
• spi_nor_parse_smpt(9)
• spi_nor_parse_profile1(9)
• spi_nor_parse_sccr(9)
• spi_nor_parse_sccr_mc(9)
• spi_nor_post_sfdp_fixups(9)
• spi_nor_check_sfdp_signature(9)
• spi_nor_parse_sfdp(9)

mwah 💋 source/version: ./drivers/mtd/spi-nor, dated October 2026 — and that's the spi_nor_parse_4bait(9) page, bestie. go parse that table ✨💅