---
name: "drm_dp_link_probe"
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_dp_link_probe"
---

# drm\_dp\_link\_probe(9)

probe a DisplayPort link for capabilities

## NAME

drm\_dp\_link\_probe - probe a DisplayPort link for capabilities

## SYNOPSIS

**int drm\_dp\_link\_probe(struct drm\_dp\_aux \*** *aux***, struct drm\_dp\_link \*** *link***);**

## ARGUMENTS

*aux*

DisplayPort AUX channel

*link*

pointer to structure in which to return link capabilities

## DESCRIPTION

The structure filled in by this function can usually be passed directly into **drm\_dp\_link\_power\_up** and **drm\_dp\_link\_configure** to power up and configure the link based on the link's capabilities.

Returns 0 on success or a negative error code on failure.

## 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