LockOut: add events for Lock-Out / Tag-Out style devices

It is common practice for dangerous machinery to have a Lock-Out-Tag-Out
process (LOTO) to prevent the system from operating while the machin

LockOut: add events for Lock-Out / Tag-Out style devices

It is common practice for dangerous machinery to have a Lock-Out-Tag-Out
process (LOTO) to prevent the system from operating while the machine
is being worked on. Servers may have Lock-Out style devices to prevent
either power or liquid cooling operations while the system is in
service. For example, a switch may disable all liquid cooling pumps so
that the coolant does not pump onto the floor while coolant lines are
being repaired.

Add events to indicate the state of a Lock-Out style device.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I9ae6cfe02ed492c02e6f19725955ff6b0f0e7afa

show more ...