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by Julian Coleman.
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.Dd October 14, 2013 .Dt LMENV 4 .Os .Sh NAME .Nm lmenv .Nd National Semiconductor LM81, LM87, and compatible hardware monitors .Sh SYNOPSIS .Cd "lmenv0 at iic0 addr 0x2c: ADM9240 rev 2" .Sh DESCRIPTION The .Nm driver provides support for the .Tn National Semiconductor LM87, .Tn National Semiconductor LM81, .Tn Analog Devices ADM9240, and .Tn Dallas Semiconductor DS1780 iicbus hardware monitors. Sensor values are reported through the .Xr envstat 8 interface.
p The .Nm supports the following voltage, temperature, and fan speed sensors: l -column "+5Vin/Vcc" "Temperature" -offset indent t Sy "Sensor" Ta "Type" t Li "+2.5Vin" Ta "Volts DC" t Li "Vccp1" Ta "Volts DC" t Li "+Vcc" Ta "Volts DC" t Li "+5Vin/Vcc" Ta "Volts DC" t Li "+12Vin" Ta "Volts DC" t Li "Vccp2" Ta "Volts DC" t Li "External" Ta "Temperature" t Li "Internal" Ta "Temperature" t Li "FAN1" Ta "Speed" t Li "FAN2" Ta "Speed" .El On the LM87 monitor, AIN1 and AIN2 Volts DC sensors may replace either, or both of the FAN1 and FAN2 speed sensors, respectively. .Sh SEE ALSO .Xr envsys 4 , .Xr envstat 8 .Sh HISTORY The .Nm driver first appeared in .Ox 3.9 . .Nx support was added in .Nx 7.0 . .Sh AUTHORS The .Nm driver was written for .Ox by .An Mark Kettenis .Aq kettenis (at] openbsd.org , and ported to .Nx by .An Julian Coleman .Aq jdc (at] NetBSD.org . .Sh BUGS High and low sensor limits are not supported.
p Interrupt support is not implemented.
Indexes created Mon Sep 22 13:09:51 GMT 2025