Device 0 (VID=066f and PID=846c) is a Maxfield G-Flash NG 1GB.
Error 2: PTP Layer error 02ff: get_device_unicode_property(): failed to get unicode property.
Error 2: (Look this up in ptp.h for an explanation.)
ERROR: Could not close session!
inep: usb_get_endpoint_status(): No such device
outep: usb_get_endpoint_status(): No such device
usb_clear_halt() on IN endpoint: No such device
usb_clear_halt() on OUT endpoint: No such device
usb_clear_halt() on INTERRUPT endpoint: No such device
libmtp version: 0.3.7

Listing raw device(s)
   Found 1 device(s):
   Maxfield: G-Flash NG 1GB (066f:846c) @ bus 0, dev 30
Attempting to connect device(s)
USB low-level info:
   Using kernel interface "usbfs"
   bcdUSB: 512
   bDeviceClass: 0
   bDeviceSubClass: 0
   bDeviceProtocol: 0
   idVendor: 066f
   idProduct: 846c
   IN endpoint maxpacket: 512 bytes
   OUT endpoint maxpacket: 512 bytes
   Raw device info:
      Bus location: 0
      Device number: 30
      Device entry info:
         Vendor: Maxfield
         Vendor id: 0x066f
         Product: G-Flash NG 1GB
         Vendor id: 0x846c
         Device flags: 0x00000006
Microsoft device descriptor 0xee:
	0000: 1203 4d00 5300 4600 5400 3100 3000 3000	..M.S.F.T.1.0.0.
	0010: 0100                                   	..
Device info:
   Manufacturer: SigmaTel
   Model: MTP Player
   Device version: SDK4.210
   Serial number: 0002FA82174ED9C80002FA82174ACA0C
   Vendor extension ID: 0x00000006
   Vendor extension description: microsoft.com: 1.0; microsoft.com/WMDRMPD: 10.1; microsoft.com/WMPPD: 10.0
   Detected object size: 64 bits
Supported operations:
   1001: get device info
   1002: Open session
   1003: Close session
   1004: Get storage IDs
   1005: Get storage info
   1006: Get number of objects
   1007: Get object handles
   1008: Get object info
   1009: Get object
   101b: Get partial object
   100b: Delete object
   100c: Send object info
   100d: Send object
   1014: Get device property description
   1015: Get device property value
   1016: Set device property value
   9802: Get object property description
   9801: Get object properties supported
   9803: Get object property value
   9804: Set object property value
   9805: Get object property list
   9806: Set object property list
   9808: Send object property list
   9101: Get secure time challenge
   9102: Get secure time response
   9103: Set license response
   9104: Get sync list
   9105: Send meter challenge query
   9106: Get meter challenge
   9107: Get meter response
   9108: Clean data store
   9109: Get license state
   910a: Send WMDRM-PD Command
   910b: Send WMDRM-PD Request
   100f: Format storage
   9810: Get object references
   9811: Set object references
   9201: Report Added/Deleted Items
   97f1: Unknown (97f1)
   97f2: Unknown (97f2)
   97f3: Unknown (97f3)
   1010: Reset device
Events supported:
   0x4004
   0x4005
Device Properties Supported:
   0xd101: Secure Time
   0xd102: Device Certificate
   0xd402: Friendly Device Name
   0xd401: Synchronization Partner
   0x5001: Battery Level
Playable File (Object) Types and Object Properties Supported:
   3009: MP3
   3008: MS Wave
   b901: WMA
   b902: OGG
   3007: AIFF
   b903: AAC
   300c: ASF
   3001: Association/Directory
   ba05: Abstract Audio Video Playlist
   3801: JPEG
   ba11: M3U Playlist
   ba03: Abstract Audio Album
   3000: Undefined Type
Storage Devices:
   StorageID: 0x00010001
      StorageType: 0x0003 fixed RAM storage
      FilesystemType: 0x0002 generic hierarchical
      AccessCapability: 0x0000 read/write
      MaxCapacity: 990117888
      FreeSpaceInBytes: 478984104
      FreeSpaceInObjects: 4294967295
      StorageDescription: Internal Storage
      VolumeIdentifier: 0002FA82174ED9C80002FA82174ACA0C
Special directories:
   Default music folder: 0x00000000
   Default playlist folder: 0x00000000
   Default picture folder: 0x00000000
   Default video folder: 0x00000000
   Default organizer folder: 0x00000000
   Default zencast folder: 0x00000000
   Default album folder: 0x00000000
   Default text folder: 0x00000000
MTP-specific device properties:
   Friendly name: (NULL)
   Synchronization partner: (NULL)
libmtp supported (playable) filetypes:
   ISO MPEG-1 Audio Layer 3
   RIFF WAVE file
   Microsoft Windows Media Audio
   Ogg container format
   Advanced Audio Coding (AAC)/MPEG-2 Part 7/MPEG-4 Part 3
   Microsoft Advanced Systems Format
   JPEG file
Unable to acquire device certificate, perhaps this device does not support this
OK.