tree c99b1c8b1b5e493cc933dfed8c6c478e1e51f400
parent 5cd7bbbd83ef8631b99eba86ca532c3ec4c09d89
author Rashmica Gupta <rashmica.g@gmail.com> 1627535676 +1000
committer Ed Tanous <ed@tanous.net> 1639001490 +0000

Add optional hysteresis field to Thresholds

This allows applications to use a hysteresis when clearing threshold
alerts. For example, if a critical high temperature sensor threshold
value is set to 50 with a hysteresis of 5, then the alarm property in
the threshold interface is set when the temperature crosses 50 when
increasing, and when the temperature decreases it isn't cleared until
it gets to 45.

At this point, this is only needed by the phosphor-virtual-sensor code
which is going to get its sensor config from entity manager

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
Change-Id: I3d00746343c8a8c672aa77a702bcf65705d20b4c