What it should look like according to wiki: http://gentoo-wiki.com/HARDWARE_iPod

usb 1-3: new high speed USB device using ehci_hcd and address 3
usb 1-3: configuration #1 chosen from 2 choices
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 3
usb-storage: waiting for device to settle before scanning
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
  Vendor: Apple     Model: iPod              Rev: 1.62
  Type:   Direct-Access                      ANSI SCSI revision: 00
usb-storage: device scan complete
SCSI device sda: 3999744 512-byte hdwr sectors (2048 MB)
sda: Write Protect is off
sda: Mode Sense: 68 00 00 08
sda: assuming drive cache: write through
SCSI device sda: 3999744 512-byte hdwr sectors (2048 MB)
sda: Write Protect is off
sda: Mode Sense: 68 00 00 08
sda: assuming drive cache: write through
 sda: sda1 sda2
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0


dmesg that I get: (not it does not mention any /dev anything) 

usb 1-7: new high speed USB device using ehci_hcd and address 3
usb 1-7: configuration #1 chosen from 2 choices
scsi0 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 3
usb-storage: waiting for device to settle before scanning
scsi 0:0:0:0: Direct-Access     Apple    iPod             1.62 PQ: 0 ANSI: 0
usb-storage: device scan complete