NAME
lm
- National Semiconductor LM78, LM79 and compatible hardware monitors
SYNOPSIS
lm0 at isa? port 0x280
lm1 at isa? port 0x290
lm2 at isa? port 0x310
lm3 at isa? port 0xa00
lm0 at pnpbios0 index ?
lm0 at iic? addr 0x2e
DESCRIPTION
The
lm
driver provides support for the
National Semiconductor
LM series hardware monitors and register compatible chips to be used with
the
envsys(4)
API.
Most supported devices possess 11 sensors:
Sensor | Units | Typical Use
|
IN0 uV DC Core voltage
|
IN1 uV DC unknown
|
IN2 uV DC +3.3V
|
IN3 uV DC +5V
|
IN4 uV DC +12V
|
IN5 uV DC -12V
|
IN6 uV DC -5V
|
Temp uK Motherboard Temperature
|
Fan0 RPM Fan
|
Fan1 RPM Chassis Fan
|
Fan2 RPM Fan
| | | | | | | | | | | | | | | | | | | | | | |
for some devices (most Winbond devices) sensor names and numbers will be
different.
Due to hardware limitations, fresh sensor data is only available every
2 seconds.
HARDWARE
Chips supported by the
lm
driver include:
-
National Semiconductor
LM78,
LM78-J,
LM79
and
LM81.
-
Winbond
W83627HF,
W83627THF,
W83627EHF,
W83627DHG,
W83637HF,
W83697HF,
W83781D,
W83782D,
W83783S,
W83791D,
W83791SD
and
W83792D.
-
ASUS
AS99127F.
SEE ALSO
envsys(4),
envstat(8)
HISTORY
The
lm
device appeared in
NetBSD1.5.
BUGS
Interrupt support is unimplemented.
There are currently no known pnpbios IDs assigned to LM chips.