Comment 15 for bug 1314556

affects me too.

kengyu:~ $ mtp-detect
Unable to open ~/.mtpz-data for reading, MTPZ disabled.libmtp version: 1.1.6

Listing raw device(s)
Device 0 (VID=1bbb and PID=0168) is UNKNOWN.
Please report this VID/PID and the device model to the libmtp development team
   Found 1 device(s):
   1bbb:0168 @ bus 2, dev 18
Attempting to connect device(s)
ignoring libusb_claim_interface() = -6PTP_ERROR_IO: failed to open session, trying again after resetting USB interface
LIBMTP libusb: Attempt to reset device
outep: usb_get_endpoint_status(): Device or resource busy
LIBMTP PANIC: failed to open session on second attempt
Unable to open raw device 0
OK.

[ 2297.911059] usb 2-2: new high-speed USB device number 18 using xhci_hcd
[ 2297.928261] usb 2-2: New USB device found, idVendor=1bbb, idProduct=0168
[ 2297.928270] usb 2-2: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[ 2297.928275] usb 2-2: Product: ALCATEL ONE TOUCH 6040D
[ 2297.928279] usb 2-2: Manufacturer: TCT
[ 2297.928283] usb 2-2: SerialNumber: 9LZSKFNBJRBISC45
[ 2307.175887] usb 2-2: usbfs: process 14304 (mtp-detect) did not claim interface 0 before use
[ 2307.343192] usb 2-2: reset high-speed USB device number 18 using xhci_hcd
[ 2307.359869] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001d94b7c0
[ 2307.359879] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001d94b780
[ 2307.359884] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001d94b800
[ 2307.360562] usb 2-2: usbfs: process 14304 (mtp-detect) did not claim interface 0 before use
[ 2307.527314] usb 2-2: reset high-speed USB device number 18 using xhci_hcd
[ 2307.544241] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001d94b7c0
[ 2307.544251] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001d94b780
[ 2307.544256] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88001d94b800
[ 2307.545110] usb 2-2: usbfs: process 14304 (mtp-detect) did not claim interface 0 before use
[ 2307.545648] usb 2-2: usbfs: process 14297 (pool) did not claim interface 0 before use