---
name: "dwctwo"
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/dwctwo"
---

# dwctwo(4)

DesignWare HS USB 2.0 OTG controller

## NAME

**dwctwo** – DesignWare HS USB 2.0 OTG controller

## SYNOPSIS

**dwctwo\* at fdt?**                  (arm64, armv7) **dwctwo0 at iobus? irq 56**         (octeon) **usb\*    at dwctwo?**

## DESCRIPTION

The **dwctwo** driver provides support for the DesignWare High-Speed USB 2.0 On-the-Go controller, which provides an interface to [usb(4)](/usb/4.md) devices.

## SEE ALSO

[ehci(4)](/ehci/4.md), [ohci(4)](/ohci/4.md), [usb(4)](/usb/4.md), [xhci(4)](/xhci/4.md)

## HISTORY

The **dwctwo** driver first appeared in OpenBSD 5.8.