| TM121TEMP(4) | Device Drivers Manual | TM121TEMP(4) | 
tm121temp —
tm121temp0 at spi? slave 0
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”.
tm121temp driver was written by
  Garrett D'Amore and first appeared in
  NetBSD 4.0.
| October 9, 2006 | NetBSD 10.1 |