devm_iio_device_alloc(9)

📦 version 7.3.1, in nixpkgs unstable

💖 devm_iio_device_alloc(9) 💖

okay bestie, so this one's a page straight out of the Kernel API Manual — like, the actual kernel docs, not some random wiki, and we're gonna get you comfy with it in like two minutes flat, i promise 🫶

✨ NAME ✨

devm_iio_device_alloc — the resource-managed version of iio_device_alloc(), and honestly? she's the main character of memory safety 💅

🌸 SYNOPSIS 🌸

struct iio_dev * devm_iio_device_alloc (struct device *parent , int
sizeof_priv );

thats it. two arguments. no cap, that's the whole vibe check ✅

🎀 ARGUMENTS 🎀

  • parent — the struct device you're allocating the iio_dev for 🧚 and heads up, it's also the parent of this IIO device, so it's doing double duty, iconic behavior honestly
  • sizeof_priv — how much space you want carved out for your private structure. like reserving a lil VIP section just for your own data 💜

🦋 DESCRIPTION 🦋

so like, this is the managed iio_device_alloc. the iio_dev you get back from this function gets automatically freed on driver detach — like, you don't have to remember to clean up, the kernel handles it for you. lowkey the most thoughtful thing ever 😭💖

⭐ RETURN ⭐

  • on success? you get a pointer to the allocated iio_dev 🔥
  • on failure? you get NULL 💀 (so please, for the love of everything, check it)

🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/iio/industrialio-core.c, and here's the whole friend group of related functions — go say hi 👋✨

bestie reminder 🫶 — this page came from ./drivers/iio, dated October 2026, in the Kernel API Manual. go forth and allocate responsibly, mwah 💋👑
📦 where this page comes from