CentOS - May 2009 - lacie drive and CentOS 5.3 question...

I'm adding a couple lacie external USB drives to my CentOS 5.3 system
and running into a few issues... when I connect them, I see the
following in dmesg:

  usb 1-1: new high speed USB device using ehci_hcd and address 11
  usb 1-1: configuration #1 chosen from 1 choice

And that's it.  No device assignment information, the usb-storage
module does not appear to be loaded and I am unable to access the
drive.

I do see the following in lsusb:

  Bus 001 Device 011: ID 0451:6250 Texas Instruments, Inc.

I'm assuming the kernel or udev doesn't know what to do with the given
device ID and isn't correctly mapping it to the usb-storage module (I
have manually loaded usb-storage with modprobe usb-storage prior to
attaching the device).

I found a post describing how to manually map a vendor id / device id
to usb-storage, but it has to do with the old hotplug system from
CentOS 4.

Can anyone advise me on how I can tell my system the above device is a
mass storage device?  Do I need to write some udev rules?

These drives work fine (automatically) on a Fedora 10 machine.  Also, I
am using the "plus" kernel on my CentOS machine.

Thanks,
Ray

On Mon, May 25, 2009 at 11:17:30AM -0700, Ray Van Dolson
wrote:
> Can anyone advise me on how I can tell my system the above device is a
> mass storage device?  Do I need to write some udev rules?
Sorry for replying to my own post, but upon further investigation, it
appears that perhaps the usb-storage module doesn't have the correct
matching pattern in place to detect this as a mass storage device:

udevmonitor reports the device having a module alias of:

  usb:v0451p6250d0300dcFFdsc00dp00icFFisc00ip00

And modinfo usb-storage shows:

  # modinfo usb-storage | grep v045
  alias:          usb:v045Ap5210d0101dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0457p0151d0100dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0457p0150d0100dc*dsc*dp*ic*isc*ip*
  alias:          usb:v0451p5416d0100dc*dsc*dp*ic*isc*ip*

Which obviously won't match.  So the question is, how do I add a new
alias to the module?  And will the module even support my device?

Ray