bluetooth

To list bluetooth devices on Ubuntu, run

hcitool  dev

To list usb devices, run

boby@sok-01:~$ lsusb
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
Bus 003 Device 003: ID 2516:0057  
Bus 003 Device 002: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 1395:0025 Sennheiser Communications 
Bus 001 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
boby@sok-01:~$ 

“Cambridge Silicon Radio” is the USB device i have on my PC.