Paraphrasing from the configuration option:
The action to take when "TimeAction" or "PercentageAction" above has
been reached for the batteries (UPS or laptop batteries) supplying
the computer.
This is done 20 seconds after the warning-level variable got set
to UP_DEVICE_LEVEL_ACTION has been set, to give the opportunity
to front-ends to display a (short) warning.
This is only implemented for the Linux backend, using logind.
Defaulting to true, it controls whether we want the powersave commands
to be run when running on battery/plugging ac.
Signed-off-by: Richard Hughes <richard@hughsie.com>
Annoyingly, the device used in the Watts Up Pro device seems to be a generic
USB->serial adaptor, which means it doesn't have a unique vendor and product
ID. If we try to probe for the WUP device, we can actually upset other devices
that are not expecing to be probed. This fixes#33846 although we actually
still need to be more strict in detecting a true WUP device.
