66e1c91713
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>
36 lines
1.3 KiB
Text
36 lines
1.3 KiB
Text
Kernel driver tmp108
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====================
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Supported chips:
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* Texas Instruments TMP108
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Prefix: 'tmp108'
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Addresses scanned: none
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Datasheet: http://www.ti.com/product/tmp108
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Author:
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John Muir <john@jmuir.com>
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Description
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-----------
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The Texas Instruments TMP108 implements one temperature sensor. An alert pin
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can be set when temperatures exceed minimum or maximum values plus or minus a
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hysteresis value. (This driver does not support interrupts for the alert pin,
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and the device runs in comparator mode.)
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The sensor is accurate to 0.75C over the range of -25 to +85 C, and to 1.0
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degree from -40 to +125 C. Resolution of the sensor is 0.0625 degree. The
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operating temperature has a minimum of -55 C and a maximum of +150 C.
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Hysteresis values can be set to 0, 1, 2, or 4C.
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The TMP108 has a programmable update rate that can select between 8, 4, 1, and
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0.5 Hz.
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By default the TMP108 reads the temperature continuously. To conserve power,
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the TMP108 has a one-shot mode where the device is normally shut-down. When a
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one shot is requested the temperature is read, the result can be retrieved,
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and then the device is shut down automatically. (This driver only supports
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continuous mode.)
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The driver provides the common sysfs-interface for temperatures (see
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Documentation/hwmon/sysfs-interface under Temperatures).
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