LMTEMP(4) BSD Kernel Interfaces Manual LMTEMP(4)NAMElmtemp — National Semiconductor LM75, LM77 and compatible hardware moni‐
tors
SYNOPSIS
lmtemp0 at iic? addr 0x48 flags 0x0000
DESCRIPTION
The lmtemp driver provides support for the National Semiconductor LM on
iicbus series temperatures and register compatible chips to be used with
the envsys(4) API. The lmtemp supports ranges of the temperature between
+125 from -55.
Each device is specified by the value of the address and flags.
Temperature addr flags
LM75 0x48 - 0x4f 0x0000
DS75 0x48 - 0x4f 0x0001
LM77 0x48 - 0x4b 0x0002
HARDWARE
Chips supported by the lmtemp driver include:
National Semiconductor LM75
National Semiconductor LM77
Dallas Semiconductor DS75
SEE ALSOenvsys(4), envstat(8)HISTORY
The lmtemp device appeared in NetBSD 4.0.
BUGS
Interrupt support is unimplemented.
BSD April 4, 2008 BSD