la clé est dans une prise usb , une imprimante canon en usb
daniel@ordi-bureau:~$ dmesg | tail
[ 1955.336025] usb 1-2: device descriptor read/64, error -32
[ 1955.552022] usb 1-2: new high speed USB device using ehci_hcd and address 8
[ 1955.960021] usb 1-2: device not accepting address 8, error -32
[ 1956.072024] usb 1-2: new high speed USB device using ehci_hcd and address 9
[ 1956.4800
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