| IPMI(4) | Kernel Interfaces Manual | IPMI(4) | 
NAME
 ipmi — Intelligent Platform Management Interface driver
SYNOPSIS
 ipmi0 at mainbus?
DESCRIPTION
 The 
ipmi device driver supports motherboards implementing the Intelligent Platform Management Interface version 1.5 or 2.0, and exports sensors and the watchdog through the 
envsys(4) interface.
 
EVENTS
 The 
ipmi driver is able to send events to 
powerd(8) when a sensor's state has changed. Intrusion sensors will send a 
critical event when state is not ok. Power Supply sensors will send a 
critical event when the Power Supply unit is not installed and 
warning-over when the Power Supply unit is installed but not powered on. Fan, temperature and voltage sensors will send 
critical-over or 
critical-under when the value is very critical, or 
warning-over or 
warning-under if it's in a warning alert.
 
HISTORY
 The ipmi driver first appeared in OpenBSD 3.9 and was then ported to NetBSD 4.0.
AUTHORS
 The ipmi driver was originally written by Jordan Hargrave and was ported to NetBSD by Manuel Bouyer <bouyer@NetBSD.org>.