of_nvmem_cell_get(9)

📦 version 7.3.1, in nixpkgs unstable

💅 of_nvmem_cell_get 💅

okay so this is the of_nvmem_cell_get page from the Kernel API Manual — yes it's a kernel function, yes it's a 9-section page, and yes we're gonna get through it together bestie, no cap 🫶

✨ NAME ✨

of_nvmem_cell_get — literally just: get an nvmem cell from a given device node and a cell id. that's the whole vibe. grab the cell, slay 💅

🦋 SYNOPSIS 🦋

struct nvmem_cell * of_nvmem_cell_get (struct device_node *np , const char *id );

look at her go, main character energy fr 💖

🌸 ARGUMENTS 🌸

  • np — the device tree node that uses the nvmem cell. she's the one doing the using, okurrr ✨
  • id — the nvmem cell name, taken from the nvmem-cell-names property. OR you can pass NULL to get the cell at index 0 — that's the lone cell with no accompanying nvmem-cell-names property. so like, NULL = "just give me the only one there is" 🙈

👑 RETURN 👑

so what do you get back? on error you get an ERR_PTR — yes it's one of those returns, so check it, don't just rawdog the dereference 💀

on success you get a valid pointer to a struct nvmem_cell.

⚠️ important bestie: the nvmem_cell will be freed by nvmem_cell_put. so you don't free it yourself, you hand it back. that's the deal, periodt.

🌈 SEE ALSO 🌈

the friend group — the whole nvmem crew, and we are obsessed 🔥 these are all in the kernel file ./drivers/nvmem/core.c:

go read them all, i'll wait 🧚💜

aaaand that's the page!! 💖 this one lives in ./drivers/nvmem, dated October 2026, and it's part of the Kernel API Manual. mwah, bye bestie 🎀✨

📦 where this page comes from