nand_fill_column_cycles(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 nand_fill_column_cycles (9) — Kernel API Manual 🌸

okay bestie, welcome to the group chat 💅 today we're talking about nand_fill_column_cycles, from the Kernel API Manual. yes it's a kernel function. yes it's niche. no we are not skipping it. let's go 🫶

✨ NAME ✨

nand_fill_column_cycles — filling in the column cycles of an address, that's the whole vibe 🎀

💫 SYNOPSIS 💫

int nand_fill_column_cycles (struct nand_chip *chip , u8 *addrs ,
unsigned int offset_in_page );

like, look at her. three arguments. main character energy honestly 👑

🌷 ARGUMENTS 🌷

  • chip — the NAND chip in question, the actual star of the show 🦋
  • addrs — the array of address cycles you're gonna fill, aka the canvas 🎨
  • offset_in_page — the offset in the page, literally what it says, no notes 💖

🌈 DESCRIPTION 🌈

so what does she actually do?? she fills the first byte — or the first two bytes — of the addrs field, and which one it is depends on the NAND bus width and the page size. that's it. that's the function. iconic behaviour ngl ✨

and she returns the number of cycles needed to encode the column, or a negative error code if one of the arguments turns out to be invalid 😭 like if you hand her bad input she will simply not participate 💀

fr fr, watch the return value — negative means "something's wrong with your arguments," not "zero cycles, all good." iykyk 🙈

🦋 SEE ALSO 🦋

okay this is the part where the whole extended friend group shows up. every single one. no cap, we're listing all of them, because they all deserve their moment 🎀💜

kernel file ./drivers/mtd/nand/raw/nand_base.c:

like… that's the whole friend group AND their cousins 😭 but every single one is invited, we don't do exclusion here 💖

and that's the page!! source/version schtuff: this beauty lives in ./drivers/mtd/nand/raw, and she's dated October 2026. periodt 👑✨ go fill some column cycles bestie, you got this 🫶💅

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