---
name: "pwmbl"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/pwmbl"
---

# pwmbl(4)

PWM backlight controller

## NAME

**pwmbl** – PWM backlight controller

## SYNOPSIS

**pwmbl\* at fdt?**

## DESCRIPTION

The **pwmbl** driver provides support for backlight controllers that are controlled by a PWM signal.

## SEE ALSO

[intro(4)](/intro/4.md)

## HISTORY

The **pwmbl** device driver first appeared in OpenBSD 6.7.

## AUTHORS

The **pwmbl** driver was written by Krystian Lewandowski.