---
name: "dev_get_by_index"
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/dev_get_by_index"
---

# dev\_get\_by\_index(9)

find a device by its ifindex

## NAME

dev\_get\_by\_index - find a device by its ifindex

## SYNOPSIS

**struct net\_device \* dev\_get\_by\_index(struct net \*** *net***, int** *ifindex***);**

## ARGUMENTS

*net*

the applicable net namespace

*ifindex*

index of device

## DESCRIPTION

Search for an interface by index. Returns NULL if the device is not found or a pointer to the device. The device returned has had a reference added and the pointer is safe until the user calls dev\_put to indicate they have finished with it.

## COPYRIGHT