#1921 unable to detect tolino vision 6 with calibre ( libmtp v1.1.17)

[Anonymous]

using calibre with libmtp v1.1.17 and a tolino vision 6

seemling it is not able to detect the device. as requested in the error log im reporting this problem with the following errorlog :
calliope ~/ebooks $ calibre &
[1] 26150
calliope ~/ebooks $ calibre
Device 0 (VID=4173 and PID=8000) is UNKNOWN in libmtp v1.1.17.
Please report this VID/PID and the device model to the libmtp development team
error returned by libusb_claim_interface() = -6LIBMTP PANIC: Unable to initialize device
Error while trying to open MTPDevice(busnum=3, devnum=7, vendor_id=16755, product_id=32768, bcd=1088, serial='23086493,fe1522ebb1b14ed7818f94ca8887b30f', manufacturer='Rakuten Kobo Inc.', product='tolino vision 6') (Driver: <calibre.devices.mtp.driver.mtp_device object="" at="" 0x7fd604142040="">)
Traceback (most recent call last):
File "/usr/lib/calibre/calibre/devices/mtp/unix/driver.py", line 218, in open
self.dev = self.create_device(connected_device)
File "/usr/lib/calibre/calibre/devices/mtp/base.py", line 25, in synchronizer
return func(self, args, *kwargs)
File "/usr/lib/calibre/calibre/devices/mtp/unix/driver.py", line 171, in create_device
return self.libmtp.Device(d.busnum, d.devnum, d.vendor_id,
libmtp.MTPError: Unable to open MTP device with busnum=3 and devnum=7, tried 1 such devices</calibre.devices.mtp.driver.mtp_device>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/calibre/calibre/gui2/device.py", line 297, in detect_device
dev.open(cd, self.current_library_uuid)
File "/usr/lib/calibre/calibre/devices/mtp/driver.py", line 125, in open
BASE.open(self, device, library_uuid)
File "/usr/lib/calibre/calibre/devices/mtp/base.py", line 25, in synchronizer
return func(self, args, *kwargs)
File "/usr/lib/calibre/calibre/devices/mtp/unix/driver.py", line 221, in open
raise OpenFailed('Failed to open %s: Error: %s'%(
calibre.devices.errors.OpenFailed: Failed to open MTPDevice(busnum=3, devnum=7, vendor_id=16755, product_id=32768, bcd=1088, serial='23086493,fe1522ebb1b14ed7818f94ca8887b30f', manufacturer='Rakuten Kobo Inc.', product='tolino vision 6'): Error: Unable to open MTP device with busnum=3 and devnum=7, tried 1 such devices

[Marcus Meissner]

added to git for next release, thanks!