nazorne:
napriklad klavesnice od Logitechu ma Bus 001 a Device 003, takze zarizeni to je /dev/bus/usb/001/003
jmp@core-i5:~$ lsusb
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 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 046d:c312 Logitech, Inc. DeLuxe 250 Keyboard
Bus 001 Device 004: ID 045e:077d Microsoft Corp.
Bus 002 Device 003: ID 06da:0003 Phoenixtec Power Co., Ltd
Bus 002 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
jmp@core-i5:~$ sudo ls -l /dev/bus/usb -R
/dev/bus/usb:
celkem 0
drwxr-xr-x 2 root root 120 2012-01-01 09:52 001
drwxr-xr-x 2 root root 120 2012-01-01 09:52 002
/dev/bus/usb/001:
celkem 0
crw-rw-r-- 1 root root 189, 0 2012-01-01 08:56 001
crw-rw-r-- 1 root root 189, 1 2012-01-01 08:56 002
crw-rw-r-- 1 root root 189, 2 2012-01-01 08:56 003
crw-rw-r-- 1 root root 189, 3 2012-01-01 08:56 004
/dev/bus/usb/002:
celkem 0
crw-rw-r-- 1 root root 189, 128 2012-01-01 08:56 001
crw-rw-r-- 1 root root 189, 129 2012-01-01 08:56 002
crw-rw-r-- 1 root nut 189, 130 2012-01-01 09:09 003
crw-rw-r-- 1 root root 189, 131 2012-01-01 08:56 004
jmp@core-i5:~$