i donwloaded the latest ones from your website

http://members.shaw.ca/dmenns2/software.html

and it's not only the gphoto2 commands that have to be in the script but , more important , also the commands that switch the USB port to host and back !

so if your gonna try dont forget to put this a the start of the script :

echo host > /sys/devices/platform/musb_hdrc/mode

and this at the end :

echo otg > /sys/devices/platform/musb_hdrc/mode

Also do not use an OTG enable USB cable as this would switch the device automatically.
Then just plug in your camera , and start the script.

Btw , thanks for the conversion and distribution of the liberaries