~$ lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 004: ID 04f2:b289 Chicony Electronics Co., Ltd

~$ dmesg | tail -f
[   20.572619] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (N/A, 3000 mBm)
[   38.967306] postgres (1743): /proc/1743/oom_adj is deprecated, please use /proc/1743/oom_score_adj instead.
[   49.000164] vboxdrv: Found 4 processor cores.
[   49.000332] vboxdrv: fAsync=0 offMin=0x2dc offMax=0x1af8
[   49.000401] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
[   49.000404] vboxdrv: Successfully loaded version 4.2.10_Ubuntu (interface 0x001a0004).
[   49.212754] vboxpci: IOMMU not found (not registered)
[   59.299562] init: plymouth-stop pre-start process (2424) terminated with status 1
[   83.313871] ISO 9660 Extensions: Microsoft Joliet Level 3
[   83.366554] ISOFS: changing to secondary root