gpfs is a virtual filesystem for a gp32. It is based on the gp32 linking tool
from Mike Dawson (http://dexy.mine.nu/gp32/)

Requirements: Set up usbdevfs: http://www.linux-usb.org/USB-guide/x173.html
When you plug in and switch on your gp32 you should see an extra entry appear
under /proc/bus/usb/<bus number>/

Permissions: For gpfs to be able to access the usb bus you need to either:
a) set permissions on usbdevfs to 0666 using an fstab entry like: none
/proc/bus/usb usbdevfs devmode=0666 0 0 b) use gpfs as root, or c) use
something like linux hotplug (http://linux-hotplug.sourceforge.net) to manage
the permissions.

To build gpfs requires libusb (http://libusb.sourceforge.net) and FUSE
(http://fuse.sourceforge.net). Under Debian you can 'apt-get 
install libusb-dev libfuse-dev' and manually compile the fuse module for your 
kernel.

Sorry for my hardcoded paths and libs in the Makefile and the sources. First
check the Makefile for your desired install paths (defaults in /usr/bin/) and
the source file 'gpfs.c' if your 'fusermount' is in a different place different
from '/usr/bin/fusermount'

Then run 'make' and 'make install' as root.

You can run 'gpfs' followed by the mount point or for automatic mounting, 
add something like this to your /etc/fstab:

 /proc/fs/fuse/dev   /mnt/gp32   gpfs   defaults,user   0 0
 
And make sure fusermount has the bit suid with 'chmod u+s /usr/bin/fusermount'

Error recovery isn't too good yet.  If an operation doesn't work you
might have to switch your gp32 off and on for the link command to start
working again.