Is it possible to programmatically alter a USB<->Serial converter's 'BM' latency option?

Question

Is there any way to programmatically alter the 'BM Options Latency Timer' of a USB<->Serial adapter? Needs to work on embedded windows xp. Can be a .net 2.0 or native windows solution...

Answer 1

I think you are using an FTDI USB serial converter. Then you can use libftdi

And check out the Application Notes (especially AN232B-04) because they contain lots of useful information.

Answer 2

This is driver specific. Your best bet is to do what romkyns says and try to figure out where the driver stores this setting. You will probably need to close and reopen the serial port after changing the setting assuming you are able to find out how it is stored and are able to change it.