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hwmon: Driver for TI TMP102 temperature sensor

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Driver for the TI TMP102.

The TI TMP102 is similar to the LM75.  It differs from the LM75 by
having a 16-bit conf register and the temp registers have a minimum
resolution of 12 bits; the extended conf register can select 13-bit
resolution (which this driver does) and also change the update rate
(which this driver currently doesn't use).

[JD: Fix tmp102_exit tag, must be __exit, not __init.]

Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Steven King
2010-05-27 19:58:56 +02:00
committed by Jean Delvare
parent dac6831e67
commit beb1b6bbf2
4 changed files with 335 additions and 0 deletions
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Kernel driver tmp102
====================
Supported chips:
* Texas Instruments TMP102
Prefix: 'tmp102'
Addresses scanned: I2C 0x48 0x49 0x4a 0x4b
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp102.html
Author:
Steven King <sfking@fdwdc.com>
Description
-----------
The Texas Instruments TMP102 implements one temperature sensor. Limits can be
set through the Overtemperature Shutdown register and Hysteresis register. The
sensor is accurate to 0.5 degrees over the range of -25 to +85 C, and to 1.0
degrees 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.
The TMP102 has a programmable update rate that can select between 8, 4, 1, and
0.5 Hz. (Currently the driver only supports the default of 4 Hz).
The driver provides the common sysfs-interface for temperatures (see
/Documentation/hwmon/sysfs-interface under Temperatures).