thomas@TOM:~$ hal-device /org/freedesktop/Hal/devices/usb_device_41e_4131_0101255101038FE9_if0
udi = '/org/freedesktop/Hal/devices/usb_device_41e_4131_0101255101038FE9_if0'
  info.udi = '/org/freedesktop/Hal/devices/usb_device_41e_4131_0101255101038FE9_if0'  (string)
  camera.libgphoto2.support = true  (bool)
  camera.libgphoto2.name = 'Creative Zen Touch'  (string)
  camera.access_method = 'ptp'  (string)
  info.capabilities = { 'camera' } (string list)
  info.category = 'camera'  (string)
  linux.subsystem = 'usb'  (string)
  linux.hotplug_type = 1  (0x1)  (int)
  info.product = 'USB Interface'  (string)
  usb.interface.protocol = 0  (0x0)  (int)
  usb.interface.subclass = 0  (0x0)  (int)
  usb.interface.class = 0  (0x0)  (int)
  usb.interface.number = 0  (0x0)  (int)
  usb.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:10.4/usb5/5-3/5-3:1.0'  (string)
  usb.configuration_value = 1  (0x1)  (int)
  usb.num_configurations = 1  (0x1)  (int)
  usb.num_interfaces = 1  (0x1)  (int)
  usb.device_class = 255  (0xff)  (int)
  usb.device_subclass = 0  (0x0)  (int)
  usb.device_protocol = 0  (0x0)  (int)
  usb.vendor_id = 1054  (0x41e)  (int)
  usb.product_id = 16689  (0x4131)  (int)
  usb.vendor = 'Creative Technology, Ltd'  (string)
  usb.product = 'USB Interface'  (string)
  usb.device_revision_bcd = 256  (0x100)  (int)
  usb.max_power = 440  (0x1b8)  (int)
  usb.num_ports = 0  (0x0)  (int)
  usb.linux.device_number = 12  (0xc)  (int)
  usb.serial = '0101255101038FE9'  (string)
  usb.speed_bcd = 294912  (0x48000)  (int)
  usb.version_bcd = 512  (0x200)  (int)
  usb.is_self_powered = true  (bool)
  usb.can_wake_up = false  (bool)
  usb.bus_number = 5  (0x5)  (int)
  info.bus = 'usb'  (string)
  info.parent = '/org/freedesktop/Hal/devices/usb_device_41e_4131_0101255101038FE9'  (string)
  linux.sysfs_path_device = '/sys/devices/pci0000:00/0000:00:10.4/usb5/5-3/5-3:1.0'  (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:10.4/usb5/5-3/5-3:1.0'  (string)