list-devices -V (return code: 2)
Usage: /bin/list-devices cd|disk|partition|floppy|maybe-usb-floppy|usb-partition|mmc-partition
list-devices --help (return code: 2)
Usage: /bin/list-devices cd|disk|partition|floppy|maybe-usb-floppy|usb-partition|mmc-partition