Product info: http://www.cowonamerica.com/products/iaudio/m3/

The M3 presents two USB devices, on a mountable mass-storage; full Hal logs
below.  Hal does not recognise it as an audio device.  It is automounted under
the name "IAUDIO".  Playlists must be placed under the "PLAYLIST/" directory.

------

5: udi = '/org/freedesktop/Hal/devices/usb_device_e21_500_100_if0'
  info.udi = '/org/freedesktop/Hal/devices/usb_device_e21_500_100_if0'  (string)
  linux.subsystem = 'usb'  (string)
  linux.hotplug_type = 1  (0x1)  (int)
  info.product = 'USB Mass Storage Interface'  (string)
  usb.interface.protocol = 80  (0x50)  (int)
  usb.interface.subclass = 6  (0x6)  (int)
  usb.interface.class = 8  (0x8)  (int)
  usb.interface.number = 0  (0x0)  (int)
  usb.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:02.2/usb3/3-5/3-5:2.0'
 (string)
  usb.configuration_value = 2  (0x2)  (int)
  usb.num_configurations = 1  (0x1)  (int)
  usb.num_interfaces = 1  (0x1)  (int)
  usb.device_class = 0  (0x0)  (int)
  usb.device_subclass = 0  (0x0)  (int)
  usb.device_protocol = 0  (0x0)  (int)
  usb.vendor_id = 3617  (0xe21)  (int)
  usb.product_id = 1280  (0x500)  (int)
  usb.vendor = 'Cowon Systems, Inc.'  (string)
  usb.product = 'USB Mass Storage Interface'  (string)
  usb.device_revision_bcd = 256  (0x100)  (int)
  usb.max_power = 498  (0x1f2)  (int)
  usb.num_ports = 0  (0x0)  (int)
  usb.linux.device_number = 2  (0x2)  (int)
  usb.serial = '100'  (string)
  usb.speed_bcd = 294912  (0x48000)  (int)
  usb.version_bcd = 512  (0x200)  (int)
  usb.is_self_powered = false  (bool)
  usb.can_wake_up = false  (bool)
  usb.bus_number = 3  (0x3)  (int)
  info.bus = 'usb'  (string)
  info.parent = '/org/freedesktop/Hal/devices/usb_device_e21_500_100'  (string)
  linux.sysfs_path_device =
'/sys/devices/pci0000:00/0000:00:02.2/usb3/3-5/3-5:2.0'  (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:02.2/usb3/3-5/3-5:2.0' 
(string)

6: udi = '/org/freedesktop/Hal/devices/usb_device_e21_500_100'
  info.udi = '/org/freedesktop/Hal/devices/usb_device_e21_500_100'  (string)
  linux.subsystem = 'usb'  (string)
  linux.hotplug_type = 1  (0x1)  (int)
  usb_device.bus_number = 3  (0x3)  (int)
  usb_device.can_wake_up = false  (bool)
  usb_device.is_self_powered = false  (bool)
  usb_device.version_bcd = 512  (0x200)  (int)
  usb_device.speed_bcd = 294912  (0x48000)  (int)
  usb_device.serial = '100'  (string)
  usb_device.linux.device_number = 2  (0x2)  (int)
  usb_device.num_ports = 0  (0x0)  (int)
  usb_device.max_power = 498  (0x1f2)  (int)
  usb_device.device_revision_bcd = 256  (0x100)  (int)
  info.product = 'iAUDIO M3 Digital Audio Player'  (string)
  usb_device.product = 'iAUDIO M3 Digital Audio Player'  (string)
  info.vendor = 'Cowon Systems, Inc.'  (string)
  usb_device.vendor = 'Cowon Systems, Inc.'  (string)
  usb_device.product_id = 1280  (0x500)  (int)
  usb_device.vendor_id = 3617  (0xe21)  (int)
  usb_device.device_protocol = 0  (0x0)  (int)
  usb_device.device_subclass = 0  (0x0)  (int)
  usb_device.device_class = 0  (0x0)  (int)
  usb_device.num_interfaces = 1  (0x1)  (int)
  usb_device.num_configurations = 1  (0x1)  (int)
  usb_device.configuration_value = 2  (0x2)  (int)
  usb_device.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:02.2/usb3/3-5'
 (string)
  info.linux.driver = 'usb'  (string)
  info.bus = 'usb_device'  (string)
  info.parent = '/org/freedesktop/Hal/devices/usb_device_0_0_0000_00_02_2'  (string)
  linux.sysfs_path_device = '/sys/devices/pci0000:00/0000:00:02.2/usb3/3-5' 
(string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:02.2/usb3/3-5'  (string)