light_lightness_actual_work_handler() function

Submit a work item to the system workqueue. This routine submits work item @a work to be processed by the system workqueue. If the work item is already pending in the workqueue's queue as a result of an earlier submission, this routine has no effect on the work item. If the work item has already been processed, or is currently being processed, its work is considered complete and the work item can be resubmitted. @warning Work items submitted to the system workqueue should avoid using handlers that block or yield since this may prevent the system workqueue from processing other work items in a timely manner.

Initialize a work item. This routine initializes a workqueue work item, prior to its first use.