spi_nor_write_sr(9)

📦 version 7.3.1, in nixpkgs unstable

💅 spi_nor_write_sr — like, the Status Register glow-up

okay so bestie, this is a page from the Kernel API Manual (yes, the kernel has lore too) and it's all about spi_nor_write_sr(9) — the little function that writes the Status Register. periodt.

✨ NAME ✨

spi_nor_write_sr — Write the Status Register. that's it, that's the whole vibe 🎀

🌸 SYNOPSIS 🌸

int spi_nor_write_sr (struct spi_nor *nor , const u8 *sr , size_t len );

like look at her. three args, returns an int. main character energy fr.

🦋 ARGUMENTS 🦋

  • nor — pointer to 'struct spi_nor'. this is your spi_nor bestie, the whole context of the operation 🫶
  • sr — pointer to a DMA-able buffer to write to the Status Register. emphasis on DMA-able, okay? don't come at her with just any random buffer 🙈
  • len — number of bytes to write to the Status Register. how much you're giving her, basically ✨

💖 RETURN 💖

0 on success, -errno otherwise. so like, zero means slay, negative means the kernel is telling you exactly what went wrong 💀

🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/mtd/spi-nor/core.c and honestly the whole friend group is here — 62 functions deep, no cap. go say hi 👑:

lowkey the whole spi_nor family eats and leaves no crumbs 🍓 read them in order, iykyk.

and that's the page!! this one came from ./drivers/mtd/spi-nor and it's stamped October 2026 — so like, future-era kernel wisdom 💜 mwah, go write that Status Register bestie 💅✨

📦 where this page comes from