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74 lines
1.6 KiB
ReStructuredText
74 lines
1.6 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
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Kernel driver tmp464
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====================
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Supported chips:
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* Texas Instruments TMP464
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Prefix: 'tmp464'
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Addresses scanned: I2C 0x48, 0x49, 0x4a and 0x4b
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Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp464.html
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* Texas Instruments TMP468
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Prefix: 'tmp468'
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Addresses scanned: I2C 0x48, 0x49, 0x4a and 0x4b
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Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp468.html
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Authors:
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Agathe Porte <agathe.porte@nokia.com>
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Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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This driver implements support for Texas Instruments TMP464 and TMP468
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temperature sensor chips. TMP464 provides one local and four remote
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sensors. TMP468 provides one local and eight remote sensors.
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Temperature is measured in degrees Celsius. The chips are wired over
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I2C/SMBus and specified over a temperature range of -40 to +125 degrees
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Celsius. Resolution for both the local and remote channels is 0.0625
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degree C.
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The chips support only temperature measurements. The driver exports
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temperature values, limits, and alarms via the following sysfs files:
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**temp[1-9]_input**
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**temp[1-9]_max**
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**temp[1-9]_max_hyst**
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**temp[1-9]_max_alarm**
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**temp[1-9]_crit**
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**temp[1-9]_crit_alarm**
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**temp[1-9]_crit_hyst**
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**temp[2-9]_offset**
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**temp[2-9]_fault**
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Each sensor can be individually disabled via Devicetree or from sysfs
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via:
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**temp[1-9]_enable**
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If labels were specified in Devicetree, additional sysfs files will
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be present:
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**temp[1-9]_label**
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The update interval is configurable with the following sysfs attribute.
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**update_interval**
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