VIAENV(4) Kernel Interfaces Manual VIAENV(4)
NAME
viaenvVIA VT82C686A/VT8231 Hardware Monitor and Power Management Timer
SYNOPSIS
viaenv* at pci? dev ? function ?
DESCRIPTION
The viaenv is an envsys(4) compatible driver for the Hardware Monitor and the Power Management timer in the VIA VT82C686A and VT8231 South Bridges.
 
The device has 10 sensors:
Sensor
Units
Typical Use
TSENS1
uK
CPU temperature
TSENS2
uK
System temperature
TSENS3
uK
?
FAN1
RPM
CPU fan
FAN2
RPM
System fan
VSENS1
uV DC
CPU core voltage (2.0V)
VSENS2
uV DC
North Bridge core voltage (2.5V)
Vcore
uV DC
Internal core voltage (3.3V)
VSENS3
uV DC
+5V
VSENS4
uV DC
+12V
 
Sensor data is updated every 1.5 seconds.
SEE ALSO
HISTORY
The viaenv device appeared in NetBSD 1.5.
BUGS
Interrupt support is unimplemented, as is support for setting values.