Copyright (c) 2000 Johan Danielsson
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.Dd January 20, 2007 .Dt VIAENV 4 .Os .Sh NAME .Nm viaenv .Nd VIA VT82C686A/VT8231 Hardware Monitor and Power Management Timer .Sh SYNOPSIS .Cd "viaenv* at pci? dev ? function ?" .Sh DESCRIPTION The .Nm is an .Xr envsys 4 compatible driver for the Hardware Monitor and the Power Management timer in the .Tn VIA VT82C686A and VT8231 South Bridges.
p The device has 10 sensors: l -column "Sensor" "Units" "Typical" -offset indent t Sy "Sensor" Ta Sy "Units" Ta Sy "Typical Use" t Li "TSENS1" Ta "uK" Ta "CPU temperature" t Li "TSENS2" Ta "uK" Ta "System temperature" t Li "TSENS3" Ta "uK" Ta "?" t Li "FAN1" Ta "RPM" Ta "CPU fan" t Li "FAN2" Ta "RPM" Ta "System fan" t Li "VSENS1" Ta "uV DC" Ta "CPU core voltage (2.0V)" t Li "VSENS2" Ta "uV DC" Ta "North Bridge core voltage (2.5V)" t Li "Vcore" Ta "uV DC" Ta "Internal core voltage (3.3V)" t Li "VSENS3" Ta "uV DC" Ta "+5V" t Li "VSENS4" Ta "uV DC" Ta "+12V" .El
p Sensor data is updated every 1.5 seconds. .Sh SEE ALSO .Xr envsys 4 , .Xr envstat 8 .Sh HISTORY The .Nm device appeared in .Nx 1.5 . .Sh BUGS Interrupt support is unimplemented, as is support for setting values.
Indexes created Sat Sep 20 22:09:52 GMT 2025