This is what I get from dmesg:
$ sudo dmesg | grep Bluetooth [ 0.600009] Bluetooth: Core ver 2.13 [ 0.600020] Bluetooth: HCI device and connection manager initialized [ 0.600020] Bluetooth: HCI socket layer initialized [ 3.337895] Bluetooth: L2CAP ver 2.11 [ 3.337896] Bluetooth: L2CAP socket layer initialized [ 3.337899] Bluetooth: SCO (Voice Link) ver 0.6 [ 3.337900] Bluetooth: SCO socket layer initialized [ 3.337935] Bluetooth: RFCOMM socket layer initialized [ 3.337941] Bluetooth: RFCOMM TTY layer initialized [ 3.337943] Bluetooth: RFCOMM ver 1.10 [ 15.166854] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 15.166857] Bluetooth: BNEP filters: protocol multicast
This is what I get from dmesg:
$ sudo dmesg | grep Bluetooth
[ 0.600009] Bluetooth: Core ver 2.13
[ 0.600020] Bluetooth: HCI device and connection manager initialized
[ 0.600020] Bluetooth: HCI socket layer initialized
[ 3.337895] Bluetooth: L2CAP ver 2.11
[ 3.337896] Bluetooth: L2CAP socket layer initialized
[ 3.337899] Bluetooth: SCO (Voice Link) ver 0.6
[ 3.337900] Bluetooth: SCO socket layer initialized
[ 3.337935] Bluetooth: RFCOMM socket layer initialized
[ 3.337941] Bluetooth: RFCOMM TTY layer initialized
[ 3.337943] Bluetooth: RFCOMM ver 1.10
[ 15.166854] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 15.166857] Bluetooth: BNEP filters: protocol multicast