$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 2040:4982 Hauppauge HD PVR
Bus 002 Device 002: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser
Bus 002 Device 003: ID 2548:1001
Bus 002 Device 004: ID 0471:0815 Philips (or NXP) eHome Infrared Receiver