Kernel driver raspberrypi-hwmon
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===============================
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Supported boards:
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* Raspberry Pi A+ (via GPIO on SoC)
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* Raspberry Pi B+ (via GPIO on SoC)
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* Raspberry Pi 2 B (via GPIO on SoC)
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* Raspberry Pi 3 B (via GPIO on port expander)
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* Raspberry Pi 3 B+ (via PMIC)
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Author: Stefan Wahren <stefan.wahren@i2se.com>
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Description
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-----------
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This driver periodically polls a mailbox property of the VC4 firmware to detect
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undervoltage conditions.
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Sysfs entries
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-------------
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======================= ==================
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in0_lcrit_alarm Undervoltage alarm
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======================= ==================
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