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Kernel driver raspberrypi-hwmon

Documentation/hwmon/raspberrypi-hwmon.rst

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Kernel driver raspberrypi-hwmon

Supported boards:

  • Raspberry Pi A+ (via GPIO on SoC)
  • Raspberry Pi B+ (via GPIO on SoC)
  • Raspberry Pi 2 B (via GPIO on SoC)
  • Raspberry Pi 3 B (via GPIO on port expander)
  • Raspberry Pi 3 B+ (via PMIC)

Author: Stefan Wahren [email protected]

Description

This driver periodically polls a mailbox property of the VC4 firmware to detect undervoltage conditions.

Sysfs entries

======================= ================== in0_lcrit_alarm Undervoltage alarm ======================= ==================