Hi All,
Thanks all of you!
One suggested to use VID (vendor ID) and PID (product ID) of the USB since each USB has a unique ID. It is cool idea but I don't know how to implement.
So, in my case I have two USB, one with (VID:0x1234 and PID:0x0001) and the second USB with ((VID:0x1234 and PID:0x0002).
Please see attached figure.
Regards
ennng
