I keep running into the same problem whenever I use someone's
USB to serial converter:

All chips, even "identical" chips from same manufactuer / lot,
have a unique *SERIAL NUMBER*.

All the drivers check for *SERIAL NUMBER* as well as USB CID.

If it sees a different *SERIAL NUMBER*, it insists on installing yet
another driver for the "new hardware".

So, if you ever need to use a different "identical" piece of hardware,
drivers must be installed.

If the driver installation messes up, that particular piece of "identical"
hardware can *NEVER* be used on that system, because of the bad
driver (the "driver remove" option never seems to work...)

And, if you need to test, say 100 (or 1000...) pieces before they leave
the factory, *YOU NEED TO INSTALL THE DRIVER FOR EVERY UNIT
YOU TEST*

Does anyone know who makes USB to serial chips without this
stupidity?

Bill

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