nand_soft_waitrdy(9)

📦 version 7.3.1, in nixpkgs unstable

okay bestie, this is the nand_soft_waitrdy(9) page from the Kernel API Manual 💖 and it's lowkey iconic: we're polling a STATUS register until the RDY bit says “ma'am, I'm ready.” ✨

💖 NAME 💖

nand_soft_waitrdy — Poll STATUS reg until RDY bit is set to 1 🎀

🌸 SYNOPSIS 🌸

int nand_soft_waitrdy (struct nand_chip *chip , unsigned long timeout_ms
);

🎀 ARGUMENTS 🎀

  • chip — the NAND chip structure, aka the main character of this whole situation 👑
  • timeout_ms — Timeout in ms (milliseconds, bestie ⏳)

💅 DESCRIPTION 💅

okay so here's the vibe: this helper polls the STATUS register using ->exec_op until the RDY bit becomes 1 ✨. it's giving patient bestie energy, fr fr. If that does not happen whitin the specified timeout, -ETIMEDOUT is returned 😭.

This helper is intended to be used when the controller does not have access to the NAND R/B pin 🫶.

be aware, bestie: calling this helper from an ->exec_op implementation means ->exec_op must be re-entrant 💀. like, no cap, that's a real caveat.

Return 0 if the NAND chip is ready, a negative error otherwise 💜.

🦋 SEE ALSO 🦋

Kernel file ./drivers/mtd/nand/raw/nand_base.c — and a whole friend group of functions:

mwah 💋 — this cutie lives in ./drivers/mtd/nand/raw, dated October 2026, and the footer still says nand_soft_waitrdy(9) ✨ periodt.

📦 where this page comes from