iio_backend_..._pattern_set(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iio_backend_test_pattern_set — like, the Kernel API Manual one 🎀

okay so bestie, this is iio_backend_test_pattern_set(9) and it's lowkey iconic — it's the one that lets you set a test pattern on an IIO backend. yes iio stands for Industrial I/O. no i'm not being dramatic, it's literally in the kernel tree. main character manpage energy 💖

✨ NAME ✨

iio_backend_test_pattern_set — configure a test pattern 🎨

🌸 SYNOPSIS 🌸

int iio_backend_test_pattern_set(struct iio_backend *back, unsigned int chan, enum iio_backend_test_pattern pattern);

🦋 ARGUMENTS 🦋

  • back — the backend device 🫶 like, the thing you're configuring
  • chan — channel number 🔢 which channel you're doing this to
  • pattern — the test pattern 🎀 the actual pattern you wanna slap on there

⭐ DESCRIPTION ⭐

so there's a backend, right? and you want a test pattern on it. that's it. that's the function. ✨

iio_backend_test_pattern_set configures a test pattern on the backend. and like — why would you even do that? the manpage says it's typically used for calibrating the timings on the data digital interface 👑 so yeah, calibration vibes. timing slay. iykyk.

🔥 RETURN 🔥

  • 0 on success 🎉
  • a negative error number on failure 😭
ngl bestie, check that return value. negative numbers are not the vibe.

💜 SEE ALSO 💜

the kernel file itself, obviously:

  • Kernel file ./drivers/iio/industrialio-backend.c

and then the whole friend group 🌈:

okay that's the whole thing, periodt 💅

this lil section came from ./drivers/iio, dated October 2026 — so like, remember it fondly bestie, and go calibrate something 🧚💖

📦 where this page comes from