---
name: "berkwdt"
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/berkwdt"
---

# berkwdt(4)

Berkshire Products watchdog timer device

## NAME

**berkwdt** – Berkshire Products watchdog timer device

## SYNOPSIS

**berkwdt0 at pci?**

## DESCRIPTION

The **berkwdt** driver provides support for the Berkshire Products PCI PC Watchdog. These devices contain a watchdog timer and general purpose digital inputs and outputs, but currently only the watchdog timer is supported.

**berkwdt** provides the standard [watchdog(4)](/watchdog/4.md) interface and may be used with [watchdogd(8)](/watchdogd/8.md). The watchdog timer may be configured to a value from 1 second to 18 hours.

## SEE ALSO

[intro(4)](/intro/4.md), [pci(4)](/pci/4.md), [watchdog(4)](/watchdog/4.md), [sysctl(8)](/sysctl/8.md), [watchdogd(8)](/watchdogd/8.md)

## HISTORY

The **berkwdt** driver first appeared in OpenBSD 4.6.

## AUTHORS

The **berkwdt** driver was written by Wim Van Sebroeck ⟨*wim@iguana.be*⟩.