| 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 <stefan.wahren@i2se.com> | |
| Description | |
| ----------- | |
| This driver periodically polls a mailbox property of the VC4 firmware to detect | |
| undervoltage conditions. | |
| Sysfs entries | |
| ------------- | |
| in0_lcrit_alarm Undervoltage alarm |