spi_nor_write_sr1_and_check(9)

📦 version 7.3.1, in nixpkgs unstable

💅 spi_nor_write_sr1_and_check(9) — Kernel API Manual, bestie edition ✨

okay so picture this: you're deep in the Linux kernel, specifically the SPI-NOR flash situation in ./drivers/mtd/spi-nor, and you need to write exactly one lil byte into Status Register 1 — and then, and this is the main character part, verify that the byte the chip sent back actually matches what you wrote. no cap, that's the whole gig. 🎀

✨ NAME ✨

spi_nor_write_sr1_and_check — writes one byte to the Status Register 1 and then makes sure that byte matches the value it got back. like, accountability queen behavior 💅

🌸 SYNOPSIS 🌸

int spi_nor_write_sr1_and_check (struct spi_nor *nor , u8 sr1 );

🦋 ARGUMENTS 🦋

  • nor — a pointer to a struct spi_nor. yeah. that one. the whole flash device situation, right there 🫶
  • sr1 — the byte value you want written to the Status Register. one byte. that's it. iconic of it honestly ⭐

💖 RETURN 💖

Returns 0 on success, or -errno otherwise. so like, zero means slay, anything negative means the universe said no 😭

👑 SEE ALSO 👑

bestie the friend group here is huge, so buckle in 🍓 — all of these live in the Kernel file ./drivers/mtd/spi-nor/core.c:

and that's the whole page, bestie!! go forth and write that one byte, then check it. we love a function with trust issues 💜

sign-off era: this cutie came out of ./drivers/mtd/spi-nor, dated October 2026 — same vibes, same facts, streamed straight from the Kernel API Manual 🌈✨

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