STRUCT SPI_NOR_ERASE_REGION(9)

💅 struct spi_nor_erase_region(9) 💅

okay bestie, welcome to the Kernel API Manual — today's main character is struct spi_nor_erase_region, and honestly? it's giving "small struct, big responsibilities" ✨

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✨ NAME ✨

struct spi_nor_erase_region — the structure that describes a SPI NOR erase region. that's it, that's the vibe 🎀

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🌸 SYNOPSIS 🌸

struct spi_nor_erase_region {
    u64 offset;
    u64 size;
    u8 erase_mask;
    bool overlaid;
};

like, look at her. four fields. immaculate. no cap 💖

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🦋 Members 🦋

• offset — the offset in the data array of erase region start. yes, in the data array. she's precise like that 💅
• size — the size of the region, in bytes. bytes, bestie, keep up 🫶
• erase_mask — a bitmask that indicates all the supported erase commands inside this region ⚡ the erase types are sorted in ascending order, with the smallest Erase Type size chillin' at BIT(0). so like, smallest one gets the front seat, iykyk 🔥
• overlaid — determines if this region is overlaid. simple. iconic. periodt 👑

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💀 SEE ALSO 💀

Kernel file ./drivers/mtd/spi-nor/core.h — and like, the whole friend group honestly:

• struct spi_nor_erase_type(9)
• struct spi_nor_erase_command(9)
• struct spi_nor_erase_map(9)
• struct spi_nor_locking_ops(9)
• struct spi_nor_otp_organization(9)
• struct spi_nor_otp_ops(9)
• struct spi_nor_otp(9)
• struct spi_nor_flash_parameter(9)
• struct spi_nor_fixups(9)
• struct spi_nor_id(9)
• struct flash_info(9)
• struct spi_nor_manufacturer(9)
• struct sfdp(9)
• spi_nor_needs_sfdp(9)

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go read them too, bestie, don't leave them on read 😭💜

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and that's the whole page!! 💖✨ this lil slice of kernel lore lives over in ./drivers/mtd/spi-nor, dated October 2026, and yes she's still serving struct spi_nor_erase_region(9) energy 🎀🦋🌸💅🫶