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- Kernel driver tmp401
- ====================
- Supported chips:
- * Texas Instruments TMP401
- Prefix: 'tmp401'
- Addresses scanned: I2C 0x4c
- Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
- * Texas Instruments TMP411
- Prefix: 'tmp411'
- Addresses scanned: I2C 0x4c, 0x4d, 0x4e
- Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
- * Texas Instruments TMP431
- Prefix: 'tmp431'
- Addresses scanned: I2C 0x4c, 0x4d
- Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html
- * Texas Instruments TMP432
- Prefix: 'tmp432'
- Addresses scanned: I2C 0x4c, 0x4d
- Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html
- * Texas Instruments TMP435
- Prefix: 'tmp435'
- Addresses scanned: I2C 0x48 - 0x4f
- Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp435.html
- * Texas Instruments TMP461
- Prefix: 'tmp461'
- Datasheet: http://www.ti.com/product/tmp461
- Authors:
- Hans de Goede <hdegoede@redhat.com>
- Andre Prendel <andre.prendel@gmx.de>
- Description
- -----------
- This driver implements support for Texas Instruments TMP401, TMP411,
- TMP431, TMP432, TMP435, and TMP461 chips. These chips implement one or two
- remote and one local temperature sensors. Temperature is measured in degrees
- Celsius. Resolution of the remote sensor is 0.0625 degree. Local
- sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
- supported by the driver so far, so using the default resolution of 0.5
- degree).
- The driver provides the common sysfs-interface for temperatures (see
- Documentation/hwmon/sysfs-interface under Temperatures).
- The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
- some additional features.
- * Minimum and Maximum temperature measured since power-on, chip-reset
- Exported via sysfs attributes tempX_lowest and tempX_highest.
- * Reset of historical minimum/maximum temperature measurements
- Exported via sysfs attribute temp_reset_history. Writing 1 to this
- file triggers a reset.
- TMP432 is compatible with TMP401 and TMP431. It supports two external
- temperature sensors.
- TMP461 is compatible with TMP401. It supports offset correction
- that is applied to the remote sensor.
- * Sensor offset values are temperature values
- Exported via sysfs attribute tempX_offset
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