Hi, > add > > none /proc/bus/usb usbdevfs faults 0 0 > > into /etc/fstab > > then write > mount -a It's done. After a reboot, I did "mount -t usbdevfs none /proc/bus/usb" from the USB-howto . It confirmed me it was already mounted. But it is strange that /proc/bus/usb/device file is still empty. Then I did "hciconfig hci0 up" and I still have "Can't init device hci0. Connection timed out(110)" But the hciconfig message changed. It is now: "hci0: Type: USB BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0 DOWN RX bytes:0 acl:0 sco:0 events:0 errors:0 TX bytes:6 acl:0 sco:0 commands:2 errors:0" No idea why I have so much difficulties with this dongle. Regards, Ben