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Command: tm121temp | Section: 4 | Source: NetBSD | File: tm121temp.4
TM121TEMP(4) FreeBSD Kernel Interfaces Manual TM121TEMP(4)
NAME
tm121temp - Texas Instruments TMP121 temperature sensor
SYNOPSIS
tm121temp0 at spi? slave 0
DESCRIPTION
The tm121temp driver provides support for the Texas Instruments (formerly
Burr-Brown) TMP121 temperature sensor with the envsys(4) API. These
devices are connected to the host system with spi(4) or Microwire 4-wire
serial busses. The tm121temp is capable of measuring temperatures with a
2 degree accuracy over the frame from -40 to 125 Celsius. Temperatures
are reported with a granularity of 625 microKelvins.
tm121temp devices can transfer information at up to 10MHz, and support
SPI mode 0.
The device reports itself with envsys(4) using the generic device name.
This name can be overridden, by specifying an alternate name in the
device property "envsys-description".
SEE ALSO
envsys(4), spi(4), envstat(8)
HISTORY
The tm121temp driver was written by Garrett D'Amore and first appeared in
NetBSD 4.0.
FreeBSD 14.1-RELEASE-p8 October 9, 2006 FreeBSD 14.1-RELEASE-p8