jeffs@jeffs-Latitude-D620:~$ lsmod | egrep -i "bt|bnep|rf"
bnep                   19543  2
rfcomm                 69509  4
btusb                  32448  0
bluetooth             446190  11 bnep,btusb,rfcomm
jeffs@jeffs-Latitude-D620:~$

jeffs@jeffs-Latitude-D620:~$ dmesg | fgrep -i blue
[   64.317780] Bluetooth: Core ver 2.19
[   64.317828] Bluetooth: HCI device and connection manager initialized
[   64.317839] Bluetooth: HCI socket layer initialized
[   64.317842] Bluetooth: L2CAP socket layer initialized
[   64.317855] Bluetooth: SCO socket layer initialized
[   68.873348] Bluetooth: RFCOMM TTY layer initialized
[   68.873369] Bluetooth: RFCOMM socket layer initialized
[   68.873378] Bluetooth: RFCOMM ver 1.11
[   68.994907] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   68.994912] Bluetooth: BNEP filters: protocol multicast
[   68.994926] Bluetooth: BNEP