AMLSM(4) Device Drivers Manual AMLSM(4)

amlsmAmlogic secure monitor

amlsm* at fdt?

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.

intro(4), random(4)

The amlsm device driver first appeared in OpenBSD 6.7.

The amlsm driver was written by Mark Kettenis <>.

June 20, 2020 OpenBSD 7.5