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1What: /sys/firmware/opal/sensor_groups
2Date: August 2017
3Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
4Description: Sensor groups directory for POWER9 powernv servers
5
6 Each folder in this directory contains a sensor group
7 which are classified based on type of the sensor
8 like power, temperature, frequency, current, etc. They
9 can also indicate the group of sensors belonging to
10 different owners like CSM, Profiler, Job-Scheduler
11
12What: /sys/firmware/opal/sensor_groups/<sensor_group_name>/clear
13Date: August 2017
14Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
15Description: Sysfs file to clear the min-max of all the sensors
16 belonging to the group.
17
18 Writing 1 to this file will clear the minimum and
19 maximum values of all the sensors in the group.
20 In POWER9, the min-max of a sensor is the historical minimum
21 and maximum value of the sensor cached by OCC.