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On Wed, 2003-09-24 at 20:48, keith smith wrote:=20
> I've been wondering how one goes about developing a program which
> would connect to a cell phone file system.
Well, the problem is that the protocol is undocumented. So, you'd need
to figure out how the phone communicates with the computer. Probably
what happens is that the computer sends a special command to change the
mode that the cell phone is in - and then uses some other protocol to
communicate with it.
Now, the trick is to figure out what that is. So what you really need
is something that will communicate with the phone in the proper way
(like the Windows software) and then a way to watch what is going across
the USB link (or serial if that's the cable you have).
Actually, the serial cable would probably be easier. If you took the RX
and the TX lines from the serial cable and then pulled them into the RX
ports of two serial ports - you could see all the data. You'd need two
computers and enjoy spending your evenings with a hex editor ;)
BTW: I must say that this may or may not be illegal under the DMCA -
this is reverse engineering an undocumented protocol - it may be
considered breaking a protected system. I personally think that it
should not be - and I really don't want to turn this thread into a
discussion of this issue - but I think you should know before you start
so that you can make your own decision.
--Ted
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