---
name: "pci_rescan_bus"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/pci_rescan_bus"
---

# pci\_rescan\_bus(9)

scan a PCI bus for devices.

## NAME

pci\_rescan\_bus - scan a PCI bus for devices.

## SYNOPSIS

**unsigned int pci\_rescan\_bus(struct pci\_bus \*** *bus***);**

## ARGUMENTS

*bus*

PCI bus to scan

## DESCRIPTION

Scan a PCI bus and child buses for new devices, adds them, and enables them.

Returns the max number of subordinate bus discovered.

## COPYRIGHT