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73 lines
1.6 KiB
73 lines
1.6 KiB
.. 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 <[email protected]> |
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Guenter Roeck <[email protected]> |
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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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