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

2018-06-18 Thread rhkramer
On Monday, June 18, 2018 08:44:20 AM Michael Stone wrote: > He really doesn't want a sensible solution, just let it go. +1

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

2018-06-18 Thread Richard Owlett
On 06/18/2018 07:17 AM, David wrote: On 1 June 2018 at 00:21, Richard Owlett wrote: I have two computers with USB ports. I wish them to communicate as simply as mid-20th-century computers did. What is the make and model number of each computer? No longer a relevant question. I have

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

2018-06-18 Thread Michael Stone
On Mon, Jun 18, 2018 at 10:17:21PM +1000, David wrote: On 1 June 2018 at 00:21, Richard Owlett wrote: I have two computers with USB ports. I wish them to communicate as simply as mid-20th-century computers did. What is the make and model number of each computer? He really doesn't want a

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

2018-06-18 Thread David
On 1 June 2018 at 00:21, Richard Owlett wrote: > > I have two computers with USB ports. > I wish them to communicate as simply as mid-20th-century computers did. What is the make and model number of each computer?

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

2018-06-07 Thread Michael Stone
On Thu, Jun 07, 2018 at 08:07:15AM +0100, Tixy wrote: On Wed, 2018-06-06 at 22:26 -0600, Joe Pfeiffer wrote: Richard Owlett 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  

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

2018-06-07 Thread Curt
On 2018-06-07, Joe Pfeiffer wrote: > > This depends on what you mean by "universal". It was intended to be a > protocol for computers to use to communicate with peripherals; > "universal" in this context was restricted to peripherals. And to the planet earth rather than all the way to the

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

2018-06-07 Thread Tixy
On Wed, 2018-06-06 at 22:26 -0600, Joe Pfeiffer wrote: > Richard Owlett 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

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

2018-06-06 Thread Joe Pfeiffer
Richard Owlett writes: > On 06/01/2018 08:21 AM, to...@tuxteam.de wrote: >> -BEGIN PGP SIGNED MESSAGE- >> Hash: SHA1 >> >> On Fri, Jun 01, 2018 at 08:23:42AM -0400, Stefan Monnier wrote: The one choice you have is that one of both sides takes a step back and plays "gadget"

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

2018-06-06 Thread Joe Pfeiffer
Richard Owlett 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

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

2018-06-01 Thread David Wright
On Fri 01 Jun 2018 at 09:08:53 (-0500), Richard Owlett wrote: > On 06/01/2018 08:21 AM, to...@tuxteam.de wrote: > >On Fri, Jun 01, 2018 at 08:23:42AM -0400, Stefan Monnier wrote: > >>>The one choice you have is that one of both sides takes a step > >>>back and plays "gadget" [...] > > > >>The

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

2018-06-01 Thread Michael Stone
On Fri, Jun 01, 2018 at 02:16:47PM -0500, Richard Owlett wrote: USB-Ethernet dongles would be a lot more useful in the long term than USB-Serial dongles. *WHO* said anything about a "USB-Serial dongle"? I want a USB-USB object. Subtle, but important, distinction. Well, you started out

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

2018-06-01 Thread Andy Smith
Richard, On Fri, Jun 01, 2018 at 02:16:47PM -0500, Richard Owlett wrote: > On 06/01/2018 09:01 AM, Michael Stone wrote: > >I can't think of any applications where that's going to be better > >over a pair of USB-Serial dongles than a pair of USB-Ethernet > >dongles. > > Please read my stated

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

2018-06-01 Thread Richard Owlett
On 06/01/2018 09:01 AM, Michael Stone wrote: On Fri, Jun 01, 2018 at 04:56:32AM -0500, Richard Owlett wrote: On 05/31/2018 06:58 PM, David Wright wrote: (thanks for your link) gives an idea of the price, and in this case I can see some justification for it because they describe the electronics

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

2018-06-01 Thread Gene Heskett
On Friday 01 June 2018 06:20:59 Richard Owlett wrote: > On 05/31/2018 10:07 PM, Stefan Monnier wrote: > >> I have two computers with USB ports. > >> I wish them to communicate as simply as mid-20th-century computers > >> did. > > > > What kind of "communicate" do you need there? > > Essentially

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

2018-06-01 Thread Joe
On Fri, 1 Jun 2018 10:01:57 -0400 Michael Stone wrote: > On Fri, Jun 01, 2018 at 04:56:32AM -0500, Richard Owlett wrote: > >On 05/31/2018 06:58 PM, David Wright wrote: > >>(thanks for your link) gives an idea of the price, and in this case > >>I can see some justification for it because they

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

2018-06-01 Thread David Wright
On Fri 01 Jun 2018 at 05:26:01 (-0500), Richard Owlett wrote: > On 06/01/2018 01:27 AM, deloptes wrote: > >Richard Owlett wrote: > > > >>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

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

2018-06-01 Thread Richard Owlett
On 06/01/2018 08:21 AM, to...@tuxteam.de wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Jun 01, 2018 at 08:23:42AM -0400, Stefan Monnier wrote: The one choice you have is that one of both sides takes a step back and plays "gadget" [...] The gadget API is the programming API

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

2018-06-01 Thread Michael Stone
On Fri, Jun 01, 2018 at 04:56:32AM -0500, Richard Owlett wrote: On 05/31/2018 06:58 PM, David Wright wrote: (thanks for your link) gives an idea of the price, and in this case I can see some justification for it because they describe the electronics hidden inside the plugs (we hope). But

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

2018-06-01 Thread tomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Jun 01, 2018 at 08:23:42AM -0400, Stefan Monnier wrote: > > The one choice you have is that one of both sides takes a step > > back and plays "gadget" [...] > The gadget API is the programming API offered by the kernel for the OTG > ports: no

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

2018-06-01 Thread Stefan Monnier
> 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. [2]. The gadget API is the programming API offered by the kernel for the OTG ports:

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

2018-06-01 Thread Stefan Monnier
>> In some cases one of the two computers's USB port is an "OTG" port, >> meaning that it can act either as "master" or not, in which case you can >> just use a regular USB cable (and usually you then configure the OTG >> side to pretend it's a network card, so it ends up looking to the >>

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

2018-06-01 Thread Richard Owlett
On 06/01/2018 01:27 AM, deloptes wrote: Richard Owlett wrote: 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. J., why not take a crossover

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

2018-06-01 Thread Richard Owlett
On 05/31/2018 10:07 PM, Stefan Monnier wrote: I have two computers with USB ports. I wish them to communicate as simply as mid-20th-century computers did. What kind of "communicate" do you need there? Essentially any ;/ In fact one of the thought experiments I was pursuing was how to do file

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

2018-06-01 Thread tomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Jun 01, 2018 at 08:27:13AM +0200, deloptes wrote: > Richard Owlett wrote: > > > 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

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

2018-06-01 Thread deloptes
Richard Owlett wrote: > 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. > J., why not take a crossover cable - all pcs have now ethernet

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

2018-05-31 Thread Stefan Monnier
> If none of that are options, you can resort to using an "ethernet > dongle" on both sides and an ethernet cable between the two. [ If one of the two computers has a free ethernet port, you can of course also such a dongle on the other computer. ] BTW, those ethernet dongles can be found

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

2018-05-31 Thread Stefan Monnier
> I have two computers with USB ports. > I wish them to communicate as simply as mid-20th-century computers did. What kind of "communicate" do you need there? The "way back machine" to simulate a "null modem" serial cable exists, as you've seen, but it's rarely the best solution for nowadays's

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

2018-05-31 Thread Dan Ritter
On Thu, May 31, 2018 at 09:21:27AM -0500, Richard Owlett wrote: > 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

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

2018-05-31 Thread Reco
Hi. On Thu, May 31, 2018 at 09:21:27AM -0500, Richard Owlett wrote: > 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

USB "null modem" cables and related Linux driver questions

2018-05-31 Thread Richard Owlett
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