root@yaccin-HP-Pavilion-dv9500-Notebook-PC:/home/yaccin# dmesg | grep -i blue
[ 236.617477] Bluetooth: Core ver 2.19
[ 236.617549] Bluetooth: HCI device and connection manager initialized
[ 236.619505] Bluetooth: HCI socket layer initialized
[ 236.619516] Bluetooth: L2CAP socket layer initialized
[ 236.619535] Bluetooth: SCO socket layer initialized
[ 236.633629] Bluetooth: RFCOMM TTY layer initialized
[ 236.633648] Bluetooth: RFCOMM socket layer initialized
[ 236.633661] Bluetooth: RFCOMM ver 1.11
[ 236.684539] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 236.684545] Bluetooth: BNEP filters: protocol multicast
[ 236.684559] Bluetooth: BNEP socket layer initialized
root@yaccin-HP-Pavilion-dv9500-Notebook-PC:/home/yaccin#