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ENVCTRL(4) |
Kernel Interfaces Manual (SPARC64) |
ENVCTRL(4) |
NAME
envctrl — Sun 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 |
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.