knubbze@wombatlair:/dev/bus/usb/001$ lsusb
Bus 005 Device 002: ID 0c45:62c0 Microdia
Bus 005 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 003 Device 002: ID 03f0:171d Hewlett-Packard
Bus 003 Device 001: ID 0000:0000
Bus 001 Device 004: ID 0499:1037 Yamaha Corp.
Bus 001 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
knubbze@wombatlair:/dev/bus/usb/001$ dmesg | tail
[25193.488000] usbcore: registered new interface driver libusual
[25193.496000] Initializing USB Mass Storage driver...
[25193.496000] usbcore: registered new interface driver usb-storage
[25193.496000] USB Mass Storage support registered.
[25301.728000] usb 1-2: USB disconnect, address 2
[25306.856000] usb 1-2: new full speed USB device using uhci_hcd and address 3
[25307.032000] usb 1-2: configuration #1 chosen from 1 choice
[25701.548000] usb 1-2: USB disconnect, address 3
[25704.952000] usb 1-2: new full speed USB device using uhci_hcd and address 4
[25705.128000] usb 1-2: configuration #1 chosen from 1 choice
knubbze@wombatlair:/dev/bus/usb/001$ cat /proc/partitions
major minor #blocks name
8 0 156290904 sda
8 1 150392466 sda1
8 2 5895855 sda2