BUT:
~$ sudo dpkg -l | grep 'libusb'
ii libusb-0.1-4 2:0.1.12-20 userspace USB programming library
ii libusb-1.0-0 2:1.0.9~rc3-2ubuntu1 userspace USB programming library
ii libusbmuxd1 1.0.7-2ubuntu0.1 USB multiplexor daemon for iPhone and iPod Touch devices - library
--> programm crashes --> apport pops up --> show details -->
--> Ungültiger Problembericht - Konnte Paket oder Quellpaket-Namen nicht bestimmen.
--> apport closes!
I attached the crash report (_usr_lib_cups_backend_usb.0.crash).
~$ sudo lsusb
unable to initialize libusb: -99
BUT: rc3-2ubuntu1 userspace USB programming library
~$ sudo dpkg -l | grep 'libusb'
ii libusb-0.1-4 2:0.1.12-20 userspace USB programming library
ii libusb-1.0-0 2:1.0.9~
ii libusbmuxd1 1.0.7-2ubuntu0.1 USB multiplexor daemon for iPhone and iPod Touch devices - library
~$ sudo /usr/lib/ cups/backend/ usb
DEBUG: list_devices
--> programm crashes --> apport pops up --> show details -->
--> Ungültiger Problembericht - Konnte Paket oder Quellpaket-Namen nicht bestimmen.
--> apport closes!
I attached the crash report (_usr_lib_ cups_backend_ usb.0.crash) .