On Wed, Sep 9, 2009 at 9:06 PM, Henrik Hedberg<henrik.hedb...@innologies.fi> wrote: > >>> On ons, 2009-09-09 at 15:20 +0200, ext Henrik Hedberg wrote: > >>>> Why is the ancient VFAT and fixed partitioning still used? Would it >>>> be possible to partition eMMC into one big ext3 partition and just use >>>> some kind of loopdevice or similar when exposing a part of it as an USB >>>> storage in VFAT format? That way also the annoying "not mounted right >>>> now" issue would be fixed, since an USB host and the device could use >>>> the same files at the same time. I do not see technical limits, but >>>> maybe someone should just code a relevant kernel module (the virtual >>>> VFAT loopdevice ;) if that does not exist. >>> Patches happily accepted! > > Kees Jongenburger wrote: > >> Perhaps samba or webdav or sshfs , mpd are possible without unmounting >> the block device ? Also a virtual virtual fat implemented as fuse >> really sounds like a crazy project. > > Virtual virtual fat (or wfat now on ;) is what I had in my mind. > However, I do not see FUSE as an solution here, because the problem is > that the USB mass storage devices transfer pure sectors. Thus, data is > not going through the Linux VFS.
You can use any file as "backing store" also a file. so you don't need a real block device. but of course you have to map block access to certain files and translate filename in fat dir entries etc. so g_filestorage -> /dev/fakeblockdevice -> fuse -> real file system > > We need a block device that acts like a VFAT partition but reads and > writes the actual data into a given directory (in any file system, > actually). Yes, it really sounds crazy! ;) if at all possible Greetings _______________________________________________ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
