iio_backend_iodelay_set(9)

📦 version 7.3.1, in nixpkgs unstable

✨ iio_backend_iodelay_set(9) — the kernel API manual, bestie edition ✨

Okay so this is the page for iio_backend_iodelay_set from the Kernel API Manual, and honestly? It's giving "tiny function, big responsibility" 💅 Let's get into it.

🌸 NAME 🌸

iio_backend_iodelay_set — set digital I/O delay. That's it, that's the whole vibe. ✨

🦋 SYNOPSIS 🦋

int iio_backend_iodelay_set (struct iio_backend *back , unsigned int
lane , unsigned int taps );

Copy it exactly, bestie — no cap, character for character. 🫶

🎀 ARGUMENTS 🎀

  • back — the backend device. Your main character struct, lowkey the whole point. 👑
  • lane — the lane number. Which lane we're calibrating, iykyk. 🌈
  • taps — the number of taps. Sounds cute and small but it's doing real work. 💜

💖 DESCRIPTION 💖

So this bad boy controls the delays on sending/receiving data. One usecase for this — and it's kind of iconic — is to calibrate the data digital interface so we get the best results when transferring data. 🔥

Now, the important part: note that taps has no unit, because the actual delay per tap is very backend specific. So like, don't go assuming it's nanoseconds, bestie, it's not. 🙈

Hence, frontend devices typically should go through an array of taps (and the size of that array should typically match the size of the calibration points on the frontend device) and call this API. That's the move. Periodt. 💅

⭐ RETURN ⭐

  • 0 on success — slay, we did it 🎉
  • negative error number on failure — not the moment, but at least you know 😭

🧚 SEE ALSO 🧚

The kernel file, right here:

./drivers/iio/industrialio-backend.c

And the whole friend group of related calls — every single one, because we don't do half-lists around here:

And that's the whole page, bestie! 🫶 Straight from ./drivers/iio, dated October 2026, and yes — that's the source/version and date right there in the sign-off, because we keep every detail. Now go calibrate those lanes and be the main character of your own driver. 💖✨🎀

📦 where this page comes from