---
name: "ppb"
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/ppb"
---

# ppb(4)

PCI-PCI bridge

## NAME

**ppb** – PCI-PCI bridge

## SYNOPSIS

**ppb\* at pci?** **pci\* at ppb?**

## DESCRIPTION

The **ppb** driver supports generic PCI-PCI bridges, including PCI expansion backplanes. These devices are largely transparent and provide no user accessible entry points.

## SEE ALSO

[pci(4)](/pci/4.md)