Thanks for the report, Giacomo. Can you post one more information detail?
With your stick *not* switched, run "sudo lsusb -v -d 12d1:1446 >E1800.lsusb" and paste the content of the "E1800.lsusb" file to your reply.
Josh (usb_modeswitch 'upstream') -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
