---
name: "amlsm"
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/amlsm"
---

# amlsm(4)

Amlogic secure monitor

## NAME

**amlsm** – Amlogic secure monitor

## SYNOPSIS

**amlsm\* at fdt?**

## DESCRIPTION

The **amlsm** driver provides support for the secure monitor firmware interface on various Amlogic SOCs. It uses this interface to read the chip ID of the SoC and feeds it to the random subsystem's entropy pool.

## SEE ALSO

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

## HISTORY

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

## AUTHORS

The **amlsm** driver was written by Mark Kettenis ⟨*kettenis@openbsd.org*⟩.