On Tue, 09 Aug 2011 16:40:22 +0200, B.Vinai Kumar
<vinaibangala2001@xxxxxxxxx> wrote:
I'm using 'Linux file storage' gadget and exposing a RAM partition as
backing storage. After enumeration on the Host PC if any user copies a
file to the exposed partition, I would like to detect when this
copying is completed on Linux File Storage Gadget.
If I know this completion, I would like to process this file.
This cannot be done easily with File Storage Gadget the way you described.
Furthermore, you must not mount the RAM partition on both the device and
host
at the same time, ie. if FSG uses a device, nothing else should use it (or
you
risk cache inconsistencies and corruptions).
What you can do is simulate a removable media and make host eject the
device
once the transfer is completed. On device side, when eject request is
detected
you'd do all the processing you want. Once the processing is done, you can
“insert” the medium again so that host can read the result or what not.
Mass
storage function has a callback that is called once eject is processed so
you
can hack something around it.
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Best regards, _ _
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