Danke erstmal für deine Mühe, mir zu helfen!

Code:
edgar@edgar-laptop:~$ ls /dev/ttyUSB0
/dev/ttyUSB0
und dmesg - die letzten Zeilen:
Code:
[31592.668977] USB 1-1: configuration #1 chosen from 1 choice
[31592.676923] cp2101 1-1:1.0: cp2101 converter detected
[13539.791394] USB 1-1: reset full speed USB device using uhci_hcd and address 13
[13539.937798] USB 1-1: cp2101 converter now attached to ttyUSB0
[31638.606873] USB 1-1: USB disconnect, address 13
[31638.607578] cp2101 ttyUSB0: cp2101 converter now disconnected from ttyUSB0
[31638.607617] cp2101 1-1:1.0: device disconnected
[32040.393906] USB 1-1: new full speed USB device using uhci_hcd and address 14
[32040.562229] USB 1-1: configuration #1 chosen from 1 choice
[32040.566442] cp2101 1-1:1.0: cp2101 converter detected
[13731.755064] USB 1-1: reset full speed USB device using uhci_hcd and address 14
[13731.905197] USB 1-1: cp2101 converter now attached to ttyUSB0
[32751.498512] USB 1-1: USB disconnect, address 14
[32751.499174] cp2101 ttyUSB0: cp2101 converter now disconnected from ttyUSB0
[32751.499214] cp2101 1-1:1.0: device disconnected
[32870.099653] USB 1-1: new full speed USB device using uhci_hcd and address 15
[32870.263964] USB 1-1: configuration #1 chosen from 1 choice
[32870.268057] cp2101 1-1:1.0: cp2101 converter detected
[14087.336667] USB 1-1: reset full speed USB device using uhci_hcd and address 15
[14087.483037] USB 1-1: cp2101 converter now attached to ttyUSB0
[14959.968773] USB 1-1: USB disconnect, address 15
[14959.969236] cp2101 ttyUSB0: cp2101 converter now disconnected from ttyUSB0
[14959.969255] cp2101 1-1:1.0: device disconnected
[36085.264878] USB 1-1: new full speed USB device using uhci_hcd and address 16
[36085.429203] USB 1-1: configuration #1 chosen from 1 choice
[36085.433409] cp2101 1-1:1.0: cp2101 converter detected
[15465.286839] USB 1-1: reset full speed USB device using uhci_hcd and address 16
[36086.026459] USB 1-1: cp2101 converter now attached to ttyUSB0
hm....
new full speed USB device using uhci_hcd and address 16
Immer eine neue Adresse? Oder was hat das zu bedeuten?

**edit
Ja, genau um das Atmel board geht es... mega2560