Access files over USB on embedded board

[simce]

Access files over USB

Hello,

I have an embedded board with OS that uses local VFAT FS and i want to make files managed in the same time from PC via USB and embedded application.

Can anyone propose a solution? This solution exists in Nokia Symbian based phones, but i'm not sure how it's made.

Thanks!

 

[unaided]

Hi
I think that this is a method.
Use usb lan controller chip, like ax88772. Then use nfs to mount board file system to pc.
And now, you can manage files just like local pc.

 

[simce]

Hello,
Can not really understand the proposed solution.
Why should i use chip? I already have USB connectivity on board. The problem is that i want both USB mass storage and application running on embedded board to access VFAT files. The USB mass storage accesses FTL level on board, and in the same time VFAT on the board accesses files via its VFAT that accesses FTL. The problem is that FTL is not aware about the files and can not guarantee that both "users" will not damage FAT table of file nodes.
It is not possible to simply disable access for one of the users, because both VFAT and USB mass storage can have cached data which has to be flushed prior access is disabled.
BR.