lsusb
Bus 002 Device 002: ID 04f2:b40a Chicony Electronics Co., Ltd
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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hciconfig -a hci0
hci0: Type: BR/EDR Bus: USB
BD Address: 00:1A:7D:DA:71:05 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING PSCAN ISCAN INQUIRY
RX bytes:2285 acl:0 sco:0 events:335 errors:0
TX bytes:2763 acl:0 sco:0 commands:285 errors:1
Features: 0xff 0xff 0x8f 0xfe 0xdb 0xff 0x5b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: SLAVE ACCEPT
Can't read local name on hci0: Connection timed out (110)
raffi@raffi-X550EA:~$ hciconfig
hci0: Type: BR/EDR Bus: USB
BD Address: 00:1A:7D:DA:71:05 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING PSCAN ISCAN INQUIRY
RX bytes:2285 acl:0 sco:0 events:335 errors:0
TX bytes:2763 acl:0 sco:0 commands:286 errors:1