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author | John Muir <john@jmuir.com> | 2016-12-01 18:32:41 -0800 |
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committer | Guenter Roeck <linux@roeck-us.net> | 2016-12-09 21:54:25 -0800 |
commit | 66e1c91713396734f8cf778a2fc5212876c04bc0 (patch) | |
tree | bcc4661fa3206bb761cc5391f99d862505fabea3 /Documentation/hwmon/tmp108 | |
parent | 3a412d5e4a1c831723d0aaf305f1cf9a78ad9c90 (diff) | |
download | linux-stable-66e1c91713396734f8cf778a2fc5212876c04bc0.tar.gz linux-stable-66e1c91713396734f8cf778a2fc5212876c04bc0.tar.bz2 linux-stable-66e1c91713396734f8cf778a2fc5212876c04bc0.zip |
hwmon: Add Texas Instruments TMP108 temperature sensor driver.
Add support for the TI TMP108 temperature sensor with some device
configuration parameters.
Signed-off-by: John Muir <john@jmuir.com>
[groeck: Initialize of_match_table]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon/tmp108')
-rw-r--r-- | Documentation/hwmon/tmp108 | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/hwmon/tmp108 b/Documentation/hwmon/tmp108 new file mode 100644 index 000000000000..25802df23010 --- /dev/null +++ b/Documentation/hwmon/tmp108 @@ -0,0 +1,36 @@ +Kernel driver tmp108 +==================== + +Supported chips: + * Texas Instruments TMP108 + Prefix: 'tmp108' + Addresses scanned: none + Datasheet: http://www.ti.com/product/tmp108 + +Author: + John Muir <john@jmuir.com> + +Description +----------- + +The Texas Instruments TMP108 implements one temperature sensor. An alert pin +can be set when temperatures exceed minimum or maximum values plus or minus a +hysteresis value. (This driver does not support interrupts for the alert pin, +and the device runs in comparator mode.) + +The sensor is accurate to 0.75C over the range of -25 to +85 C, and to 1.0 +degree from -40 to +125 C. Resolution of the sensor is 0.0625 degree. The +operating temperature has a minimum of -55 C and a maximum of +150 C. +Hysteresis values can be set to 0, 1, 2, or 4C. + +The TMP108 has a programmable update rate that can select between 8, 4, 1, and +0.5 Hz. + +By default the TMP108 reads the temperature continuously. To conserve power, +the TMP108 has a one-shot mode where the device is normally shut-down. When a +one shot is requested the temperature is read, the result can be retrieved, +and then the device is shut down automatically. (This driver only supports +continuous mode.) + +The driver provides the common sysfs-interface for temperatures (see +Documentation/hwmon/sysfs-interface under Temperatures). |