I have a Casio QV-4000 - no luck at all getting pics from camera to computer. I have searched dozens of sites - had several helpful but non-productive pieces of advice given to me. Here is what I have learned.
As root user - login as root.
use usbview to see if your USB ports show the camera which must first be plugged in and turned on.
Do a cat /var/log/messages to see if your USB stuff and camera show up
Do a lsmod to see if usb-storage shows up if not
do a modprobe usb-storage
make sure USB support is loaded using modprobe usb
setup a directory for a mount point such as /mnt/camera
do a df to see if your camera is seen as a device. Look for sda1, sdc1 or something like that.
in your fstab file setup your device.
I am never sure in what order these thing need to be done - I am very confused. Perhaps some of this will help. Let me know if you get it going. If you do I will be green with envy because I am still fighting mine.