---
name: "drm_dev_ref"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/drm_dev_ref"
---

# drm\_dev\_ref(9)

Take reference of a DRM device

## NAME

drm\_dev\_ref - Take reference of a DRM device

## SYNOPSIS

**void drm\_dev\_ref(struct drm\_device \*** *dev***);**

## ARGUMENTS

*dev*

device to take reference of or NULL

## DESCRIPTION

This increases the ref-count of *dev* by one. You \*must\* already own a reference when calling this. Use **drm\_dev\_unref** to drop this reference again.

This function never fails. However, this function does not provide \*any\* guarantee whether the device is alive or running. It only provides a reference to the object and the memory associated with it.

## AUTHORS

**Jesse Barnes** \<jesse.barnes@intel.com\>\
 Intel Corporation,

Initial version

**Laurent Pinchart** \<laurent.pinchart@ideasonboard.com\>\
 Ideas on board SPRL,

Driver internals

**Daniel Vetter** \<daniel.vetter@ffwll.ch\>\
 Intel Corporation,

Contributions all over the place

## COPYRIGHT