TM121TEMP(4) | Device Drivers Manual | TM121TEMP(4) |
tm121temp
— Texas
Instruments TMP121 temperature sensor
tm121temp0 at spi? slave 0
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”.
The tm121temp
driver was written by
Garrett D'Amore and first appeared in
NetBSD 4.0.
October 9, 2006 | NetBSD 10.99 |