yoyoz@yoyoz-AO722:/home$ dmesg|grep Bluetooth
[   26.437776] Bluetooth: Core ver 2.16
[   26.437987] Bluetooth: HCI device and connection manager initialized
[   26.437996] Bluetooth: HCI socket layer initialized
[   26.438002] Bluetooth: L2CAP socket layer initialized
[   26.438019] Bluetooth: SCO socket layer initialized
[   26.455998] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   26.456125] Bluetooth: BNEP filters: protocol multicast
[   26.507633] Bluetooth: RFCOMM TTY layer initialized
[   26.507647] Bluetooth: RFCOMM socket layer initialized
[   26.507653] Bluetooth: RFCOMM ver 1.11