Very Computer

I'm trying to fetch images from my P52's memory stick, but run into
problems mounting it. If I plug it to my USB port, I see this in
/var/log/messages:

############################################################################
May 16 17:31:00 doener kernel: usb.c: USB device 7 (vend/prod
0x54c/0x10) is not claimed by any active driver.
May 16 17:31:24 doener kernel: Device not ready.  Make sure there is a
disc in the drive.
May 16 17:31:26 doener kernel: Device not ready.  Make sure there is a
disc in the drive.
May 16 17:31:26 doener kernel: sda : READ CAPACITY failed.
May 16 17:31:26 doener kernel: sda : status = 1, message = 00, host =
0, driver = 08
May 16 17:31:26 doener kernel: Info fld=0xa00 (nonstd), Current
sd00:00: sense key Not Ready
May 16 17:31:26 doener kernel: sda : block size assumed to be 512
bytes, disk size 1GB.
May 16 17:31:26 doener kernel:  sda: I/O error: dev 08:00, sector 0
May 16 17:31:26 doener kernel:  I/O error: dev 08:00, sector 0
May 16 17:31:26 doener kernel:  unable to read partition table
############################################################################

Assuming I didn't fsck up the camera's configuration (i.e. yes, it's
turned on, yes it's in display mode, yes USB mode is 'normal'), I
think I need to fix unusual_devs.h (another Cam(Casio) worked fine on
this machine, so I take my system configuration as ok
(USB-Mass-Storage access works). Does anyone know the bcdDeviceMin /
bcdDeviceMax values needed in unusual_devs.h for this thing to work?
Or any other Idea?

Thanks,
Rudi.