[RR Bluetooth] Class of Device - output of hciconfig

"hciconfig" -a can show information of attached bluetooth device. The "Class" means "Class of Device" or "COD"

Actually Class of Device is defined at Assigned numbers for Baseband identifies the Inquiry Access codes and Class of Device/Service (CoD) fields

Someone makes a nice CoD generator and a CoD caculator which are handy for using.