Re: USB "null modem" cables and related Linux driver questions
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On Fri, Jun 01, 2018 at 04:56:32AM -0500, Richard Owlett wrote:
> >>Pointers to good references and/or better search terms?
> >"ppp over usb" gave me http://www.linux-usb.org/usbnet/
> >which might be what you want. I notice that such a module is
> >in the production kernels.
> I had seen the page. It told me that I was not pursuing an
> impossibility. I was hoping for a more recent reference than 2005.
Perhaps this helps you in your research.
As you've found out by now, USB is an asymmetric protocol: each
network has a "boss" and the rest are all subordinates (perhaps
this design reflects the organization structures in the involved
companies , but I disgress).
Of course, some folks always wanted to connect two devices with
enough "personality" that they both wanted to be masters.
The one choice you have is that one of both sides takes a step
back and plays "gadget" (the jargon term, somewhat unfortunate
as search engine fodder). There seems to be something out there
for that, e.g. .
The other choice seems to be USB On The Go (aka "OTG") . You
seem to need a special cable for that.
There seem to be Linux drivers to let the USB "stack" play along
with OTG , but I have no experience whatsoever with this
Now you have some terms to feed your favourite search engine
(hopefully not The Goog, but I disgress again ;)
 There's a name for this: Conway's law
And those companies? Well, Compaq, DEC, IBM, Intel, Microsoft,
NEC, and Nortel. 'Nuff said ;-)
- -- tomás
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