An attribute is a signal with a default value, specified by
its value member.
The value set for an attribute by a vspec file can be read by a consumer without the need of having the value sent out by a publisher. The attribute, in effect, is configuration data that can be specified when the vspec file is installed.
Below is an example of a complete attribute describing engine power
- MaxPower:
type: attribute
datatype: uint16
default: 0
description: Peak power, in kilowatts, that engine can generate.