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Stefan Wahren74d1e002018-05-25 21:24:35 +02001Kernel driver raspberrypi-hwmon
2===============================
3
4Supported boards:
Mauro Carvalho Chehabb04f2f72019-04-17 06:46:28 -03005
Stefan Wahren74d1e002018-05-25 21:24:35 +02006 * Raspberry Pi A+ (via GPIO on SoC)
7 * Raspberry Pi B+ (via GPIO on SoC)
8 * Raspberry Pi 2 B (via GPIO on SoC)
9 * Raspberry Pi 3 B (via GPIO on port expander)
10 * Raspberry Pi 3 B+ (via PMIC)
11
12Author: Stefan Wahren <stefan.wahren@i2se.com>
13
14Description
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16
17This driver periodically polls a mailbox property of the VC4 firmware to detect
18undervoltage conditions.
19
20Sysfs entries
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22
Mauro Carvalho Chehabb04f2f72019-04-17 06:46:28 -030023======================= ==================
Stefan Wahren74d1e002018-05-25 21:24:35 +020024in0_lcrit_alarm Undervoltage alarm
Mauro Carvalho Chehabb04f2f72019-04-17 06:46:28 -030025======================= ==================