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

# skgpio(4)

Soekris net6501 GPIO and LEDs

## NAME

**skgpio** – Soekris net6501 GPIO and LEDs

## SYNOPSIS

**skgpio0 at isa? port 0x680** **gpio\* at skgpio?**

## DESCRIPTION

The **skgpio** driver provides support for the GPIO and LEDs as implemented by the Xilinx Spartan FGPA integrated into the Soekris net6501 programmed with the default bitstream found in the BIOS.

Two standard [gpio(4)](/gpio/4.md) interfaces are provided, one for the 16 real pins which can be configured as either inputs or outputs and another with 2 output-only pins that map to the error and ready LEDs respectively. Both may be used with [gpioctl(8)](/gpioctl/8.md).

## SEE ALSO

[gpio(4)](/gpio/4.md), [intro(4)](/intro/4.md), [isa(4)](/isa/4.md), [gpioctl(8)](/gpioctl/8.md)

## HISTORY

The **skgpio** driver first appeared in OpenBSD 5.7.

## AUTHORS

The **skgpio** driver was written by Matt Dainty ⟨matt@bodgit-n-scarper.com⟩.

## BUGS

If the Xilinx FPGA is programmed with a different bitstream, the driver will likely not function.