dylan@laptop:~$ dmesg | grep Bluetooth
[    4.115394] Bluetooth: Core ver 2.20
[    4.115409] Bluetooth: HCI device and connection manager initialized
[    4.115413] Bluetooth: HCI socket layer initialized
[    4.115415] Bluetooth: L2CAP socket layer initialized
[    4.115420] Bluetooth: SCO socket layer initialized
[    5.444886] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    5.444890] Bluetooth: BNEP filters: protocol multicast
[    5.444895] Bluetooth: BNEP socket layer initialized
[    5.457765] Bluetooth: RFCOMM TTY layer initialized
[    5.457773] Bluetooth: RFCOMM socket layer initialized
[    5.457778] Bluetooth: RFCOMM ver 1.11