Stefan Schmidt wrote: > Using the usb storage gadget driver from the linux kernel will give > you the functionality to emulate a usb storgae device to the host.
Okay, the block device export. I was afraid it would be that one :) > 3) The partitions must hold and filesystem that the host actually > understands. Speak fat32 or such if you want to connect it everywhere. > Thats quite a limitation if you want the same partition shared for > rootfs and usb storage emulation. Hmm, but can you have FAT32 on NAND with what's available in Linux today ? Even with the UBI block layer, it doesn't look as if this was something that would work out of the box: http://thread.gmane.org/gmane.linux.drivers.mtd/30856 http://thread.gmane.org/gmane.linux.drivers.mtd/30833 By the way, an interesting experiment should be to make a program that creates a virtual block device that represents a snapshot of any VFS file system as, say, a block device containing FAT, and that translates modifications made at the block level back into VFS operations. You still couldn't "share" things, concurrent access would be risky, and the whole things would need a few heuristics, e.g., to determine when to propagate a number of block changes to the VFS, but it ought to greatly simply just this sort of application. As far as I know, such a thing doesn't exist yet. Everybody just does block-level sharing. - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
