Every 2,0s: lsusb                                                                                                                                                                       Sun Feb 21 13:02:37 2010

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0a81:0101 Chesen Electronics Corp. Keyboard
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0458:003a KYE Systems Corp. (Mouse Systems)
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Every 2,0s: lsusb                                                                                                                                                                       Sun Feb 21 13:03:23 2010

Bus 005 Device 046: ID 10d6:1100 Actions Semiconductor Co., Ltd MPMan MP-Ki 128 MP3 Player/Recorder
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0a81:0101 Chesen Electronics Corp. Keyboard
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0458:003a KYE Systems Corp. (Mouse Systems)
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub