ENVCTRL(4) Kernel Interfaces Manual (SPARC64) ENVCTRL(4)
NAME
envctrlSun Ultra Enterprise 450 environmental monitoring
SYNOPSIS
envctrl* at ebus?
DESCRIPTION
The envctrl driver provides thermal monitoring of processors and power supplies, as well as automatic fan regulation. The driver attaches to the SUNW,envctrl subsystem found on Ultra Enterprise 450 systems.
 
The following sensors can be queried with envstat(8):
Sensor
Units
Description
CPU0
degC
Processor 0 temperature
CPU1
degC
Processor 1 temperature
CPU2
degC
Processor 2 temperature
CPU3
degC
Processor 3 temperature
PS0
degC
Power supply 0 temperature
PS1
degC
Power supply 1 temperature
PS2
degC
Power supply 2 temperature
ambient
degC
Ambient temperature
cpufan voltage
V
Voltage used to drive processor fans
psfan voltage
V
Voltage used to drive power supply fans
ps failed
count
number of failed power supplies
fans failed
count
number of failed fans
SEE ALSO
HISTORY
The envctrl driver first appeared in NetBSD 5.0.
AUTHORS
Tobias Nygren <tnn@NetBSD.org>
BUGS
The driver doesn't support SUNW,envctrltwo found on the Ultra Enterprise 250.
 
Environmental interrupts are not supported.