In syslog, these lines are repeted again and again:
Sep 1 18:07:31 g75vw kernel: [ 1075.064067] usb 3-2.1.2: new high-speed USB
device number 108 using xhci_hcd
Sep 1 18:07:31 g75vw kernel: [ 1075.080955] usb 3-2.1.2: New USB device found,
idVendor=04e8, idProduct=6860
Sep 1 18:07:31 g75vw kernel: [ 1075.080962] usb 3-2.1.2: New USB device
strings: Mfr=2, Product=3, SerialNumber=4
Sep 1 18:07:31 g75vw kernel: [ 1075.080966] usb 3-2.1.2: Product: GT-I9300
Sep 1 18:07:31 g75vw kernel: [ 1075.080969] usb 3-2.1.2: Manufacturer: samsung
Sep 1 18:07:31 g75vw kernel: [ 1075.080971] usb 3-2.1.2: SerialNumber:
4df1b2e6569d5f8d
Sep 1 18:07:31 g75vw kernel: [ 1075.081206] usb 3-2.1.2: ep 0x82 - rounding
interval to 32768 microframes, ep desc says 0 microframes
Sep 1 18:07:31 g75vw kernel: [ 1075.081214] usb 3-2.1.2: ep 0x4 - rounding
interval to 32768 microframes, ep desc says 0 microframes
Sep 1 18:07:31 g75vw kernel: [ 1075.081222] usb 3-2.1.2: ep 0x85 - rounding
interval to 32768 microframes, ep desc says 0 microframes
Sep 1 18:07:31 g75vw kernel: [ 1075.081228] usb 3-2.1.2: ep 0x7 - rounding
interval to 32768 microframes, ep desc says 0 microframes
Sep 1 18:07:31 g75vw kernel: [ 1075.122317] usb 3-2.1.2: USB disconnect,
device number 108
mtp-detect doesn't always detect my phone:
typhoe@g75vw:~$ sudo mtp-detect
libmtp version: 1.1.4
Listing raw device(s)
Device 0 (VID=04e8 and PID=6860) is a Samsung GT
P7310/P7510/N7000/I9070/I9100/I9300 Galaxy Tab 7.7/10.1/S2/S3/Nexus/Note/Y.
Found 1 device(s):
Samsung: GT P7310/P7510/N7000/I9070/I9100/I9300 Galaxy Tab
7.7/10.1/S2/S3/Nexus/Note/Y (04e8:6860) @ bus 3, dev 90
Attempting to connect device(s)
ignoring usb_claim_interface = -99PTP_ERROR_IO: failed to open session, trying
again after resetting USB interface
LIBMTP libusb: Attempt to reset device
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
usb_open(): No such device
LIBMTP PANIC: Could not init USB on second attempt
Unable to open raw device 0
OK.
then again, the same command:
typhoe@g75vw:~$ sudo mtp-detect
libmtp version: 1.1.4
Listing raw device(s)
Device 0 (VID=04e8 and PID=6860) is a Samsung GT
P7310/P7510/N7000/I9070/I9100/I9300 Galaxy Tab 7.7/10.1/S2/S3/Nexus/Note/Y.
Found 1 device(s):
Samsung: GT P7310/P7510/N7000/I9070/I9100/I9300 Galaxy Tab
7.7/10.1/S2/S3/Nexus/Note/Y (04e8:6860) @ bus 3, dev 9
Attempting to connect device(s)
Android device detected, assigning default bug flags
Error 7: Found a bad handle, trying to ignore it.
Error 7: Found a bad handle, trying to ignore it.
Error 7: Found a bad handle, trying to ignore it.
repeat for more than 300 times
Error 7: Found a bad handle, trying to ignore it.
Error 2: PTP Layer error 02ff: get_handles_recursively(): could not get object
handles.
Error 2: Error 02ff: PTP: I/O error
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: 3
Device number: 9
Device entry info:
Vendor: Samsung
Vendor id: 0x04e8
Product: GT P7310/P7510/N7000/I9070/I9100/I9300 Galaxy Tab
7.7/10.1/S2/S3/Nexus/Note/Y
Vendor id: 0x6860
Device flags: 0x48008107
Device info:
Manufacturer: samsung
Model: GT-I9300
Device version: 1.0
Serial number: 4df1b2e6569d5f8d
Vendor extension ID: 0x0006
Vendor extension description: microsoft.com: 1.0; android.com: 1.0;
Detected object size: 64 bits
Extensions:
microsoft.com: 1.0
android.com: 1.0
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
100a: Get thumbnail
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
1017: Reset device property value
101b: Get partial object
9801: Get object properties supported
9802: Get object property description
9803: Get object property value
9804: Set object property value
9805: Get object property list
9810: Get object references
9811: Set object references
95c1: Unknown (95c1)
95c2: Unknown (95c2)
95c3: Unknown (95c3)
95c4: Unknown (95c4)
95c5: Unknown (95c5)
Events supported:
0x4002
0x4003
0x4004
0x4005
Device Properties Supported:
0xd401: Synchronization Partner
0xd402: Friendly Device Name
0x5003: Image Size
Playable File (Object) Types and
