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

# ohci(4)

USB Open Host Controller Interface

## NAME

**ohci** – USB Open Host Controller Interface

## SYNOPSIS

**ohci\*    at acpi?** **ohci\*    at cardbus?** **ohci\*    at fdt?** **ohci\*    at pci?** **usb\*     at ohci?**

## DESCRIPTION

The **ohci** driver provides support for USB Open Host Controller Interface, which provides an interface to [usb(4)](/usb/4.md) devices.

## SEE ALSO

[acpi(4)](/acpi/4.md), [cardbus(4)](/cardbus/4.md), [ehci(4)](/ehci/4.md), [intro(4)](/intro/4.md), [pci(4)](/pci/4.md), [uhci(4)](/uhci/4.md), [usb(4)](/usb/4.md)

## HISTORY

The **ohci** driver appeared in OpenBSD 2.7.