$ dmesg | grep -i bluetooth [ 9.865736] Bluetooth: Core ver 2.20 [ 9.865762] Bluetooth: HCI device and connection manager initialized [ 9.865767] Bluetooth: HCI socket layer initialized [ 9.865770] Bluetooth: L2CAP socket layer initialized [ 9.865778] Bluetooth: SCO socket layer initialized [ 10.237000] Bluetooth: Configuration file not found ar3k/ramps_0x11020100_40.dfu [ 10.237002] Bluetooth: Loading sysconfig file failed [ 45.662602] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 45.662607] Bluetooth: BNEP filters: protocol multicast [ 45.662612] Bluetooth: BNEP socket layer initialized [ 56.211793] Bluetooth: RFCOMM TTY layer initialized [ 56.211802] Bluetooth: RFCOMM socket layer initialized [ 56.211808] Bluetooth: RFCOMM ver 1.11
$ dmesg | grep -i bluetooth 0x11020100_ 40.dfu
[ 9.865736] Bluetooth: Core ver 2.20
[ 9.865762] Bluetooth: HCI device and connection manager initialized
[ 9.865767] Bluetooth: HCI socket layer initialized
[ 9.865770] Bluetooth: L2CAP socket layer initialized
[ 9.865778] Bluetooth: SCO socket layer initialized
[ 10.237000] Bluetooth: Configuration file not found ar3k/ramps_
[ 10.237002] Bluetooth: Loading sysconfig file failed
[ 45.662602] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 45.662607] Bluetooth: BNEP filters: protocol multicast
[ 45.662612] Bluetooth: BNEP socket layer initialized
[ 56.211793] Bluetooth: RFCOMM TTY layer initialized
[ 56.211802] Bluetooth: RFCOMM socket layer initialized
[ 56.211808] Bluetooth: RFCOMM ver 1.11