spi_nor_writ...sr_and_check(9)

📦 version 7.3.1, in nixpkgs unstable

💅 NAME 💅

spi_nor_write_16bit_sr_and_check — writes the Status Register 1 and the Status Register 2 in one single shot, bestie. It also double-checks that the byte you wrote into Status Register 1 actually matches the value that came back, and that the 16-bit Write didn't mess with whatever was already chilling in Status Register 2. ✨

(this lives in the Kernel API Manual, and no, the title up there got truncated by the man page tooling, not by me 😭)

✨ SYNOPSIS ✨

int spi_nor_write_16bit_sr_and_check (struct spi_nor *nor , u8 sr1 );

🎀 ARGUMENTS 🎀

  • nor — pointer to a struct spi_nor. That's the NOR flash device struct, the main character of the whole operation 🫶
  • sr1 — byte value to be written to the Status Register 1. Just a u8, one byte, that's the vibe.

🌸 RETURN 🌸

0 on success, -errno otherwise. So if you get zero, slay 🔥. If you get an -errno, something went sideways and the error code will tell you what. 💀

🦋 SEE ALSO 🦋

Okay so this function has so many cousins, lowkey a whole family reunion. All of these live in the kernel file ./drivers/mtd/spi-nor/core.c 🧚

Not me listing all 62 of them 💀 but like, completeness is the whole point, periodt. 👑

Real talk: all of those references point at the SPI-NOR core stuff in the kernel source at ./drivers/mtd/spi-nor, so if you wanna go read the actual code, that's where the party is at 🔥

./drivers/mtd/spi-nor • October 2026 • spi_nor_writ...sr_and_check(9) — mwah, that's the page, hope it ate 💖🌈⭐

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