phablet@ubuntu-phablet:~$ sudo dmesg
[...]
[ 242.186235] Loading modules backported from Linux version next-20150424-0-ga3da0fb6
[ 242.186265] Backport generated by backports.git backports-20150424-0-g29d880c
[ 247.745551] Bluetooth: Core ver 2.20
[ 247.750282] NET: Registered protocol family 31
[ 247.750312] Bluetooth: HCI device and connection manager initialized
[ 247.750343] Bluetooth: HCI socket layer initialized
[ 247.750343] Bluetooth: L2CAP socket layer initialized
[ 247.750404] Bluetooth: SCO socket layer initialized
[ 255.608209] Bluetooth: HCI UART driver ver 2.3
[ 255.608209] Bluetooth: HCI UART protocol H4 registered
[ 265.740149] Bluetooth: RFCOMM socket layer initialized
[ 265.740180] Bluetooth: RFCOMM ver 1.11
[ 318.164504] hcismd_set_enable 0
[ 318.167068] Bluetooth: opening HCI-SMD channel :APPS_RIVA_BT_ACL
[ 318.167190] Bluetooth: opening HCI-SMD channel :APPS_RIVA_BT_CMD
[ 318.167923] Bluetooth: HCI device registration is starting
phablet@ubuntu-phablet:~$ lsmod
Module Size Used by
rfcomm 25255 0
hci_smd 6868 0
hci_uart 7155 0
bluetooth 333314 6 hci_smd,hci_uart,rfcomm
compat 25391 4 hci_smd,hci_uart,rfcomm,bluetooth
phablet@ubuntu-phablet:~$ sudo hcitool lescan
LE Scan ...
BC:6A:29:AC:6C:26 (unknown)
BC:6A:29:AC:6C:26 SensorTag