---
name: "ola_trigger"
section: "1"
platform: "linux"
package: "ola"
version: "0.10.9.nojsmin-7.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/ola_trigger"
---

# ola\_trigger(1)

Run programs based on the values in a DMX stream.

## NAME

ola\_trigger - Run programs based on the values in a DMX stream.

## SYNOPSIS

**ola\_trigger** \[ options \] \<config\_file\>

## DESCRIPTION

**ola\_trigger** Run programs based on the values in a DMX stream.

## OPTIONS

- \-h, --help

  Display the help message

- \-l, --log-level \<int8\_t\>

  Set the logging level 0 .. 4.

- \-o, --offset \<uint16\_t\>

  Apply an offset to the slot numbers. Valid offsets are 0 to 512, default is 0.

- \-u, --universe \<uint32\_t\>

  The universe to use, defaults to 0.

- \--validate

  Validate the config file, rather than running it.

- \-v, --version

  Display version information

- \--syslog

  Send to syslog rather than stderr.

- \--no-use-epoll

  Disable the use of epoll(), revert to select()

- \--no-use-kqueue

  Disable the use of kqueue(), revert to select()

- \--scheduler-policy \<policy\>

  The thread scheduling policy, one of {fifo, rr}.

- \--scheduler-priority \<priority\>

  The thread priority, only used if --scheduler-policy is set.

## SEE ALSO

**[olad(1)](/olad/1.md)**