spi_nor_read_cr(9)

📦 version 7.3.1, in nixpkgs unstable

✨ spi_nor_read_cr 💅

okay bestie, welcome to the Kernel API Manual — this one's a little function from the kernel and it is, genuinely, so much less scary than it looks 🫶

🌸 NAME 🌸

spi_nor_read_cr — reads the Configuration Register using the SPINOR_OP_RDCR (35h) command. that's it, that's the whole gig ✨

🎀 SYNOPSIS 🎀

int spi_nor_read_cr (struct spi_nor *nor , u8 *cr );

🦋 ARGUMENTS 🦋

  • nor — pointer to 'struct spi_nor'. you know her, you love her, she's the whole SPI NOR device 🌈
  • cr — pointer to a DMA-able buffer where the value of the Configuration Register gets written. bestie pls read that again: DMA-able. not just "some memory you had lying around" 💀

👑 RETURN 👑

0 on success, -errno otherwise. classic. no notes 💖

🔥 SEE ALSO 🔥

literally the entire friend group, and Kernel file ./drivers/mtd/spi-nor/core.c — go say hi to all of them, no cap:

and that's the whole page, bestie 💜 this lil icon lives over in ./drivers/mtd/spi-nor, dated October 2026 — go forth and read that Configuration Register, you absolute main character 🧚✨

📦 where this page comes from