struct DeviceClass

The "Class of Device/Service" is a variable-format field that defines the category of a

Bluetooth device. The bitfield is divided into segments called "major service class",

"major device class", and "minor device class".

No assumptions about the specific functionality or characteristics of any application should be

based solely on its inclusion within a Major or Minor device class. For more information, see

https://www.bluetooth.com/specifications/assigned-numbers/baseband.