| LMENV(4) | Device Drivers Manual | LMENV(4) |
lmenv — National
Semiconductor LM87 temperature, voltage, and fan sensor
lmenv* at iic?
The lmenv driver provides support for the
National Semiconductor LM87, National Semiconductor LM81, Analog Devices
ADM9240, and Dallas Semiconductor 1780 temperature sensors. The sensor
possesses a collection of sensor values which are made available through the
sysctl(8) interface:
$ sysctl hw.sensors.lmenv0 hw.sensors.lmenv0.temp0=-128.00 degC (External) hw.sensors.lmenv0.temp1=29.00 degC (Internal) hw.sensors.lmenv0.fan0=3220 RPM hw.sensors.lmenv0.volt0=2.62 V DC (+2.5Vin) hw.sensors.lmenv0.volt1=1.49 V DC (Vccp) hw.sensors.lmenv0.volt2=3.28 V DC (+Vcc) hw.sensors.lmenv0.volt3=5.03 V DC (+5Vin/Vcc) hw.sensors.lmenv0.volt4=12.00 V DC (+12Vin) hw.sensors.lmenv0.volt5=1.20 V DC (Vccp)
The lmenv driver first appeared in
OpenBSD 3.9.
The lmenv driver was written by
Mark Kettenis
<kettenis@openbsd.org>.
| July 16, 2013 | OpenBSD-current |