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