iio_device_id(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iio_device_id(9) — like, the Kernel API Manual page, bestie

okay so real talk, this is a kernel API man page, and the function it's hyping up is iio_device_id. Yes, from the IIO subsystem. Yes, it's iconic. Let's get into it 🎀

✨ NAME ✨

iio_device_id — literally just query the unique ID for the device. that's the whole vibe. 🦋

🌸 SYNOPSIS 🌸

int iio_device_id (struct iio_dev *indio_dev );

(yes, the space before that closing paren is real, we don't touch it, iykyk 💅)

🫶 ARGUMENTS 🫶

  • indio_dev — the device structure whose ID is being queried. like, this is the guy you're asking about. hand it over and it'll tell you its number 🐚

👑 DESCRIPTION 👑

so the IIO device ID is a unique index — think of it as the device's little name tag at the party. it's used for stuff like naming the character device /dev/iiodevice[ID], which is exactly as iconic as it sounds ⭐

so when you see /dev/iiodevice[ID] sitting there in your filesystem, the [ID] part? that's this. that's the number. main character energy fr fr 🔥

🌈 RETURN 🌈

the unique ID for the device 💖 that's it, that's the return value, no cap.

🧚 SEE ALSO 🧚

okay this list is long but we don't skip, we don't cut corners, we list every single one because everyone on this list is a star ⭐

the kernel file is ./drivers/iio/industrialio-core.c, and here's the whole squad:

go read them, they're all bangers 🍓

ngl this page lives under ./drivers/iio and it's dated October 2026, and the man page is called iio_device_id(9). so that's the sign-off bestie — go query some IDs, slay, and remember: unique index, unique queen 👑💜
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