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Re: USB "null modem" cables and related Linux driver questions




Richard Owlett <rowlett@xxxxxxxxxxx> writes:

> I have two computers with USB ports.
> I wish them to communicate as simply as mid-20th-century computers did.
> Then we used RS232-C with a null modem &/or  appropriate software
> software at both ends.
>
> The underlying problem is that both ends egotistically expect to be
> *MASTER*.
>
> The hardware problem is solvable
> [e.g. http://www.ftdichip.com/Products/Cables/USBtoUSB.htm].

Given how FTDI does things, I'd be really surprised if this didn't meet
your desires.  Have you actually tried it?  Are you sure there is no
driver in the kernel?

As for your actual needs...  if you want two computers to communicate,
you really ought to be using some sort of networking hardware.  You've
got a computer with a USB port, no serial port, and no ethernet or wifi?