hub 1-0:0: new USB device on port 1, assigned address 2
hub 1-1:0: USB hub found
hub 1-1:0: 2 ports detected
hub 1-1:0: new USB device on port 2, assigned address 3
Initializing USB Mass Storage driver...
drivers/usb/core/usb.c: registered new driver usb-storage
USB Mass Storage support registered.
scsi0 : SCSI emulation for USB Mass Storage devices
  Vendor: Y-E DATA  Model: USB-FDU           Rev: 3.12
  Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 3