lmenv
—
National Semiconductor LM81, LM87, and compatible hardware
monitors
lmenv0 at iic0 addr 0x2c: ADM9240 rev 2
The lmenv
driver provides support for the National
Semiconductor LM87, National Semiconductor LM81, Analog Devices ADM9240, and
Dallas Semiconductor DS1780 iicbus hardware monitors. Sensor values are
reported through the envstat(8)
interface.
The lmenv
supports the following voltage,
temperature, and fan speed sensors:
On the LM87 monitor, AIN1 and AIN2 Volts DC sensors may replace either, or both
of the FAN1 and FAN2 speed sensors, respectively.
The lmenv
driver first appeared in
OpenBSD 3.9. NetBSD support
was added in NetBSD 7.0.
The lmenv
driver was written for
OpenBSD by Mark Kettenis
⟨kettenis@openbsd.org⟩, and ported to
NetBSD by
Julian Coleman ⟨jdc@NetBSD.org⟩.
High and low sensor limits are not supported.
Interrupt support is not implemented.