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usb 3-5: new high speed USB device using ehci_hcd and address 5
usb 3-5: configuration #1 chosen from 1 choice
scsi4 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 5
usb-storage: waiting for device to settle before scanning
  Vendor: USB 2.0   Model: Reader(SM)        Rev: 2003
  Type:   Direct-Access                      ANSI SCSI revision: 02
sd 4:0:0:0: Attached scsi removable disk sda
usb-storage: device scan complete