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45 lines
1.5 KiB
ReStructuredText
45 lines
1.5 KiB
ReStructuredText
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Kernel driver max31790
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======================
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Supported chips:
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* Maxim MAX31730
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Prefix: 'max31730'
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Addresses scanned: 0x1c, 0x1d, 0x1e, 0x1f, 0x4c, 0x4d, 0x4e, 0x4f
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Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31730.pdf
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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This driver implements support for Maxim MAX31730.
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The MAX31730 temperature sensor monitors its own temperature and the
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temperatures of three external diode-connected transistors. The operating
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supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates
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for high series resistance in circuit-board traces and the external thermal
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diode, while beta compensation corrects for temperature-measurement
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errors due to low-beta sensing transistors.
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Sysfs entries
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-------------
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=================== == =======================================================
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temp[1-4]_enable RW Temperature enable/disable
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Set to 0 to enable channel, 0 to disable
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temp[1-4]_input RO Temperature input
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temp[2-4]_fault RO Fault indicator for remote channels
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temp[1-4]_max RW Maximum temperature
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temp[1-4]_max_alarm RW Maximum temperature alarm
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temp[1-4]_min RW Minimum temperature. Common for all channels.
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Only temp1_min is writeable.
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temp[1-4]_min_alarm RO Minimum temperature alarm
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temp[2-4]_offset RW Temperature offset for remote channels
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=================== == =======================================================
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