[  646.323581] usb 1-2: USB disconnect, device number 3
[  769.652154] usb 1-2: new high-speed USB device number 4 using ehci-pci
[  769.786008] usb 1-2: New USB device found, idVendor=04e8, idProduct=684a
[  769.786028] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[  769.786042] usb 1-2: Product: Samsung S5620
[  769.786054] usb 1-2: Manufacturer: Samsung Electronics
[  769.786066] usb 1-2: SerialNumber: 03030303030303030\x120G
[  769.789901] cdc_acm 1-2:1.0: This device cannot do calls on its own. It is not a modem.
[  769.790117] cdc_acm 1-2:1.0: ttyACM0: USB ACM device
[  769.797581] cdc_acm 1-2:1.3: This device cannot do calls on its own. It is not a modem.
[  769.797767] cdc_acm 1-2:1.3: ttyACM1: USB ACM device
[  912.104477] PPP BSD Compression module registered
[  912.212679] PPP Deflate Compression module registered