Hi Todd, Replying to the list this time...
> The problem is that the changes I make to the files on the desktop > are not immediately reflected in /mnt/loop on the gumstix. If I > 'cd' into /mnt/loop on the gumstix I see things only as they were > orginally; there are no file additions, deletions, or edits. I can > monitor the backing storage (/root/data/backing_file) using the > 'stat(2)' routine and confirm that it is being updated as I make > changes on the XP desktop, but these changes are not showing up in > /mnt/loop. My gumstix-resident application needs immediate access to > changes. The changes are there and they are persistent -- I just can't > see them. To actually see the changes in /mnt/loop I must reboot the > gumstix, and repeat the various 'modprobe', 'losetup', and 'mount' > operations. At the bottom of the page you referenced it says this (in the section titled: Accessing the backing storage from the gadget): It is possible to manipulate the data in the backing storage from the gadget (even to add the filesystem). Don't do this while the gadget is connected to a USB host! So you can't have your gadget seeing the data at the same time as XP is (at least that's the way I understand how this works). The problem is that XP has full control at the sector level and may have sectors cached. When you try to access through the loop device, your gadget thinks that it owns the sectors and it may have data cached. Trying to have both access the data at the same time is a recipie for data corruption and loss. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
