I am sorry, I still can't get you.
To be honest, I could not google "samophlange" as well. I mean, I could not find a listing for this term.
OK lets talk about the simple one first, RS232, I need to have a micro-controller chip and RS232 bridge, we need DLL or OCX from Microsoft, then we write code (in the PC) to opening com, communicate output, listen for input, close com.
For USB 2.0, I have the micro-controller chip, and the device driver (for PC) for it. My intention, is to push ascii char to the chip and get receive some returns. As for the chip routines, I can handle separately.
As for VB implementations I can handle at the PC side well, the situation is I need to implement in PHP.
Thanks