My mtp-detect output on Ubuntu 12.04 is the following:
http://pastebin.com/CN3LGNaZ

The interesting part is probably this:

USB low-level info:
   Interface has a kernel driver attached.
   bcdUSB: 512
   bDeviceClass: 0
   bDeviceSubClass: 0
   bDeviceProtocol: 0
   idVendor: 04e8
   idProduct: 6860
   IN endpoint maxpacket: 512 bytes
   OUT endpoint maxpacket: 512 bytes
   Raw device info:
      Bus location: 2
      Device number: 9
      Device entry info:
         Vendor: Samsung
         Vendor id: 0x04e8
         Product: GT-P7310/P7510/N7000/I9100/Galaxy Tab 7.7/10.1/S2/Nexus/Note
         Vendor id: 0x6860
         Device flags: 0x48000003
Configuration 0, interface 0, altsetting 0:
   Interface description contains the string "MTP"
   Device recognized as MTP, no further probing.
Device info:
   Manufacturer: SAMSUNG Electronics Co. Ltd.
   Model: GT-I9300
   Device version: V1.0
   Serial number: 353166051261677
   Vendor extension ID: 0x00000006
   Vendor extension description: microsoft.com: 1.0; microsoft.com/WMPPD: 11.0; microsoft.com/WMPPD: 10.0; microsoft.com/WMDRMPD:10.1; microsoft.com/playready:1.10;
   Detected object size: 64 bits
   Extensions:
        microsoft.com: 1.0
        microsoft.com/WMPPD: 11.0
        microsoft.com/WMPPD: 10.0
        microsoft.com/WMDRMPD: 10.1
        microsoft.com/playready: 1.10
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
   100b: Delete object
   100c: Send object info
   100d: Send object
   100f: Format storage
   1014: Get device property description
   1015: Get device property value
   1016: Set device property value
   101b: Get partial object
   9810: Get object references
   9811: Set object references
   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
   9201: Report Added/Deleted Items
   9202: Report Acquired Items
   1011: Self test device
   1012: Set object protection
   1017: Reset device property value
   9807: Get interdependent property description
   9808: Send object property list
   9100: Unknown (9100)
   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
   910c: Unknown (910c)
   910d: Unknown (910d)
   910e: Unknown (910e)
   910f: Unknown (910f)
   9110: Unknown (9110)
   9111: Unknown (9111)
   9112: Unknown (9112)
   9113: Unknown (9113)
   9114: Unknown (9114)
   9115: Unknown (9115)
   9116: Unknown (9116)
Events supported:
   0x4002
   0x4003
   0x4004
   0x4005
Device Properties Supported:
   0x5001: Battery Level
   0xd401: Synchronization Partner
   0xd402: Friendly Device Name
   0xd404: Unknown property
   0xd407: Perceived Device Type
   0xd101: Secure Time
   0xd102: Device Certificate
   0xd103: Revocation Info
   0xd104: Unknown property
   0xd105: Unknown property
Playable File (Object) Types and Object Properties Supported:
   b984: 3GP
   3009: MP3
   b901: WMA
   b981: WMV
   3801: JPEG
   3001: Association/Directory
   ba05: Abstract Audio Video Playlist
   3000: Undefined Type
   3807: GIF
   300a: MS AVI
   300b: MPEG
   300c: ASF
   b982: MP4
   ba10: WPL Playlist
   ba11: M3U Playlist
   ba03: Abstract Audio Album
Storage Devices:
   StorageID: 0x00010001
      StorageType: 0x0003 fixed RAM storage
      FilesystemType: 0x0002 generic hierarchical
      AccessCapability: 0x0000 read/write
      MaxCapacity: 12082356224
      FreeSpaceInBytes: 4802228224
      FreeSpaceInObjects: 4294967295
      StorageDescription: Phone
      VolumeIdentifier: SECZ9519043CHOHB
   StorageID: 0x00020002
      StorageType: 0x0004 removable RAM storage
      FilesystemType: 0x0002 generic hierarchical
      AccessCapability: 0x0000 read/write
      MaxCapacity: 7945191424
      FreeSpaceInBytes: 2462679040
      FreeSpaceInObjects: 4294967295
      StorageDescription: Card
      VolumeIdentifier: SECZ9519043CHOHB01
Special directories:
   Default music folder: 0x00000002
   Default playlist folder: 0xffffffff
   Default picture folder: 0x00000007
   Default video folder: 0xffffffff
   Default organizer folder: 0xffffffff
   Default zencast folder: 0xffffffff
   Default album folder: 0xffffffff
   Default text folder: 0xffffffff
MTP-specific device properties:
   Friendly name: (NULL)
   Synchronization partner: (NULL)
libmtp supported (playable) filetypes:
   ISO MPEG-1 Audio Layer 3
   Microsoft Windows Media Audio
   Microsoft Windows Media Video
   JPEG file
   Folder
   Abstract Playlist file
   GIF bitmap file
   Audio Video Interleave
   MPEG video stream
   Microsoft Advanced Systems Format
   MPEG-4 Part 14 Container Format (Audio+Video Emphasis)
   Abstract Album file
ERROR: Could not close session!
inep: usb_get_endpoint_status(): Device or resource busy
outep: usb_get_endpoint_status(): Device or resource busy
usb_clear_halt() on IN endpoint: Device or resource busy
usb_clear_halt() on OUT endpoint: Device or resource busy
usb_clear_halt() on INTERRUPT endpoint: Device or resource busy
OK.


$ mtp-detect
libmtp version: 1.1.3

Listing raw device(s)
Device 0 (VID=04e8 and PID=6860) is a Samsung
GT-P7310/P7510/N7000/I9100/Galaxy Tab 7.7/10.1/S2/Nexus/Note.
   Found 1 device(s):
   Samsung: GT-P7310/P7510/N7000/I9100/Galaxy Tab 7.7/10.1/S2/Nexus/Note
(04e8:6860) @ bus 1, dev 17
Attempting to connect device(s)
USB low-level info:
   Interface has a kernel driver attached.
   bcdUSB: 512
   bDeviceClass: 0
   bDeviceSubClass: 0
   bDeviceProtocol: 0
   idVendor: 04e8
   idProduct: 6860
   IN endpoint maxpacket: 512 bytes
   OUT endpoint maxpacket: 512 bytes
   Raw device info:
      Bus location: 1
      Device number: 17
      Device entry info:
         Vendor: Samsung
         Vendor id: 0x04e8
         Product: GT-P7310/P7510/N7000/I9100/Galaxy Tab
7.7/10.1/S2/Nexus/Note
         Vendor id: 0x6860
         Device flags: 0x58000003
Configuration 0, interface 0, altsetting 0:
   Interface description contains the string "MTP"
   Device recognized as MTP, no further probing.
Device info:
   Manufacturer: SAMSUNG Electronics Co. Ltd.
   Model: GT-I9300
   Device version: V1.0
   Serial number: 351869051576851
   Vendor extension ID: 0x00000006
   Vendor extension description: microsoft.com: 1.0; microsoft.com/WMPPD:
11.0; microsoft.com/WMPPD: 10.0; microsoft.com/WMDRMPD:10.1; microsof
t.com/playready:1.10;
   Detected object size: 64 bits
   Extensions:
        microsoft.com: 1.0
        microsoft.com/WMPPD: 11.0
        microsoft.com/WMPPD: 10.0
        microsoft.com/WMDRMPD: 10.1
        microsoft.com/playready: 1.10