Hi Benoît,
2016-07-20 21:42 GMT+02:00 Benoît Thébaudeau < benoit.thebaudeau....@gmail.com>: > Hi Nicolas, > > On Wed, Jul 20, 2016 at 6:21 PM, Nicolas le bayon <nleba...@gmail.com> > wrote: > > Hi all, > > > > With a quite old u-boot release (October 2015 more or less), I has some > > different issues around fatwrite operations. I realigned a few things > > around FAT with latest release, and now I observe only one issue. Maybe > > this has been discussed here before, I searched but no success. > > > > I'd like to save a file on an external device (sd card or usb stick), but > > not on the root, in a sub-directory. I made the implementation with EXT4 > > and it works fine. But no way (for the moment) with FAT. > > > > Here is the behaviour, let's imagine the device contains only a "mydir" > > directory. > >> fatls <device> > > mydir/ > >> fatwrite <device> <addr> myfile.txt <filesize> > >> fatls <device> > > mydir/ > > myfile.txt > >> fatwrite <device> <addr> mydir/myfile2.txt <filesize> > >> fatls <device> > > mydir/ > > myfile.txt > > mydir/myfile2.txt > > In fact, data is stored in a file strangely named with a '/' character. > > > > And when I put the device back on my Linux PC, I can see myfile.txt, > > nothing special in mydir directory, and no "mydir/myfile2.txt" file. > > > > Does someone have already observed this? > > Yes. The issue is that do_fat_write() only supports filenames, and not > full paths, so whatever you give it ends up as a filename in the root > directory. There is no workaround. > > Best regards, > Benoît > OK, so I'm gonna re-construct my implementation in order to place systematically this file in the root of my device, and this shoud workaround the issue. Good to learn that it's a known issue. Thanks a lot for your feedback! Best Regards Nicolas _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot