Bus 001 Device 002: ID 04a9:26ef Canon, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 002 Device 002: ID 045e:00db Microsoft Corp. Natural Ergonomic Keyboard 4000 V1.0 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub