| 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 |
| ======================= ================== |
