[CentOS] SD Card Reader not being recognized

>You might also try running the dmesg command after plugging an SD card in to
>see if it is recognized by the system at all. 
>
This is the result of dmesg:

Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb 1-1.1: new full speed USB device using address 7
scsi0 : SCSI emulation for USB Mass Storage devices
  Vendor: BUFFALO   Model: CF CARD Reader    Rev: 3.06
  Type:   Direct-Access                      ANSI SCSI revision: 02
USB Mass Storage device found at 7
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
Device not ready.  Make sure there is a disc in the drive.

Dave