---
name: "bytgpio"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["freebsd", "openbsd"]
url: "https://new.carta.tech/bytgpio"
---

# bytgpio(4)

Intel Bay Trail GPIO controller

## NAME

**bytgpio** – Intel Bay Trail GPIO controller

## SYNOPSIS

**bytgpio\* at acpi?**

## DESCRIPTION

The **bytgpio** driver provides support for the GPIO controllers found on Intel's Bay Trail SoC. It does not provide direct device driver entry points but makes its functions available to [acpi(4)](/acpi/4.md).

## SEE ALSO

[acpi(4)](/acpi/4.md), [intro(4)](/intro/4.md)

## HISTORY

The **bytgpio** driver first appeared in OpenBSD 6.0.

## AUTHORS

The **bytgpio** driver was written by Mark Kettenis ⟨*kettenis@openbsd.org*⟩.