raspberrypi-hwmon.rst 612 B

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  1. Kernel driver raspberrypi-hwmon
  2. ===============================
  3. Supported boards:
  4. * Raspberry Pi A+ (via GPIO on SoC)
  5. * Raspberry Pi B+ (via GPIO on SoC)
  6. * Raspberry Pi 2 B (via GPIO on SoC)
  7. * Raspberry Pi 3 B (via GPIO on port expander)
  8. * Raspberry Pi 3 B+ (via PMIC)
  9. Author: Stefan Wahren <stefan.wahren@i2se.com>
  10. Description
  11. -----------
  12. This driver periodically polls a mailbox property of the VC4 firmware to detect
  13. undervoltage conditions.
  14. Sysfs entries
  15. -------------
  16. ======================= ==================
  17. in0_lcrit_alarm Undervoltage alarm
  18. ======================= ==================