The following elements are contents of a <definition> element and are common to all types except the gcvref type:
Name
Explanation
value
Contains the current value of the CV. The actual allowed content is defined by the individual types.
description
A string presented to the user to explain the value in greater detail than is present in the display-name attribute. The description text might contain line breaks that must be honored when displaying the description. The description can have a description-ref attribute that is part of the localization scheme used with engine control values (ECVs).