xref: /linux/Documentation/hwmon/tmp108.rst (revision 0be3ff0c)
1Kernel driver tmp108
2====================
3
4Supported chips:
5
6  * Texas Instruments TMP108
7
8    Prefix: 'tmp108'
9
10    Addresses scanned: none
11
12    Datasheet: https://www.ti.com/product/tmp108
13
14Author:
15
16	John Muir <john@jmuir.com>
17
18Description
19-----------
20
21The Texas Instruments TMP108 implements one temperature sensor. An alert pin
22can be set when temperatures exceed minimum or maximum values plus or minus a
23hysteresis value. (This driver does not support interrupts for the alert pin,
24and the device runs in comparator mode.)
25
26The sensor is accurate to 0.75C over the range of -25 to +85 C, and to 1.0
27degree from -40 to +125 C. Resolution of the sensor is 0.0625 degree. The
28operating temperature has a minimum of -55 C and a maximum of +150 C.
29Hysteresis values can be set to 0, 1, 2, or 4C.
30
31The TMP108 has a programmable update rate that can select between 8, 4, 1, and
320.5 Hz.
33
34By default the TMP108 reads the temperature continuously. To conserve power,
35the TMP108 has a one-shot mode where the device is normally shut-down. When a
36one shot is requested the temperature is read, the result can be retrieved,
37and then the device is shut down automatically. (This driver only supports
38continuous mode.)
39
40The driver provides the common sysfs-interface for temperatures (see
41Documentation/hwmon/sysfs-interface.rst under Temperatures).
42