On Sun, 20 Feb 2005, tong changda wrote:

> As mass-storage , a few more questions:
>     I use DiskOnChip as backing media, and also mount it on /truefs/,As you 
> say it is better to mount it later. Is it ok to read/write on /truefs while 
> at the same time r/w throught windows platform?

It's okay to read /truefs but not to write.  And it's not okay to mount 
/truefs unless you mount it read-only.  (Even that isn't totally safe.)

>     It seems that while add or delete the file on the smartphone, this 
> change can't reflect on windows platform's view, I could only see that 
> changes after rmmod/insmod the g_file_storage, Is this normal? Why can't 
> the change reflect real time?

Yes, it's normal.  The explanation is simple: Windows doesn't realize that
another computer is using the filesystem.  So it doesn't look for changes
made by the smartphone and wouldn't know what to do if it found a change.

If you want to be able to write to the same filesystem from two computers 
at the same time, you can't use g-file-storage.  You'll have to use a real 
remote filesystem, like NFS or Samba (perhaps connected by 
Ethernet-over-USB).

>     It seems fat16 filesystem has filename limited 8 character, is it 
> proper to use fat16 or fat32 on UFI device?

Either one is okay.  FAT16 is not limited to 8-character filenames.  But 
to use longer filenames, you must mount the filesystem using the VFAT 
type, not the MSDOS type.  That's true for both FAT16 and FAT32.

Alan Stern



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