---
name: "v4l2ucp"
section: "1"
platform: "linux"
package: "v4l2ucp"
version: "2.0.2-4+b2"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/v4l2ucp"
---

# v4l2ucp(1)

An universal control panel for all Video for Linux Two devices.

## NAME

v4l2ucp - An universal control panel for all Video for Linux Two devices.

## SYNOPSIS

**v4l2ucp**  files*...*

## DESCRIPTION

**v4l2ucp** reads a description of the controls that the V4L2 device supports from the device, and presents the user with a graphical means for adjusting those controls.

A list of device files can be given on the command line. If no files are given, the program will check the V4L2UCP\_DEV environment variable. If it is set, that file will be opened. Finally, it will try to open /dev/video if nothing else was specified. If no devices can be opened, the program will exit.

## OPTIONS

In addition to the standard Qt arguments, v4l2ucp will also recognize -h and --help. These will print a brief usage summary and exit.

## SEE ALSO

[**v4l2ctrl**(1)](/v4l2ctrl/1.md),

## AUTHOR

v4l2ucp was written by Scott J. Bertin \<scottbertin@yahoo.com\>.

This manual page was written by Alessio Treglia \<quadrispro@ubuntu.com\>, for the Ubuntu project (and may be used by others).