The BT seems to carry enough information.  I can see it specifically identified 
on the log.. That's how I discovered Centos would close the USB connection and 
reconnect it on another port.


Looks like I have to delve into the finer points of UDEV.


Has anyone used a Broadcast Tools SRC-4 to drive an input on the GPI-16. Having 
a devil of a time getting this combo to work.


Steve Varholy
President and General Manager

[1478183502168_WXRY_Full_993_300x145.png]


The Historic Barringer Building

1338 Main Street - Suite 202

Columbia, South Carolina 29201

Office: (803) 753-7260 x 251

Direct: (803) 404-5535

Cell: (703) 585-2101


A Service of the Independent Media Foundation

________________________________
From: Rob Landry <[email protected]>
Sent: Monday, January 30, 2017 11:39:28 AM
To: Steve Varholy
Cc: Wayne Merricks; [email protected]
Subject: Re: [RDD] Interesting USB Serial Issue

On Fri, 27 Jan 2017, Steve Varholy wrote:

> Looks like my Rivendell appliance machine just seems to disconnect the USB
> port and reconnect on another port.

> Was watching the logs and it disconnected ttyUSB0 and then connected the
> GPI-16 to ttyUSB1.

They do that, unfortunately. If you do some Googling, you'll find out that
there's a way to tell udev to assign a specific name to the device, such
as /dev/btswitch, which you can use in RD regardless of whether it gets
recognized as /dev/ttyUSB0 or /dev/ttyUSB1.

That said, what worked in Debian 6 doesn't necessarily work in Debian 7 as
udev keeps getting played with by the developers.

Also, some USB-to-serial-port converters don't carry enough identifying
information for udev to uniquely distinguish one from another.

At WCRI, I lost patience with this nonsense and installed an old fashioned
serial port card.


Rob

--
Я там, где ребята толковые,
Я там, где плакаты "Вперёд",
Где песни рабочие новые
Страна трудовая поёт.

>
>
> Going to keep my eye on it.
>
>
> If there is someone that can dispense some advice on wiring a Broadcast
> Tooks SRC-4 output relay to a GPI-16 input, could you email me off list?
> I've got MediaTouch closing/opening the relay. GPI is not showing anything
> unless I physically ground the input pin to trigger the input. Finally
> learning this side of the business....
>
>
> Steve Varholy
> President and General Manager
>
> 1478183502168_WXRY_Full_993_300x145.png
>
>
> The Historic Barringer Building
>
> 1338 Main Street - Suite 202
>
> Columbia, South Carolina 29201
>
> Office: (803) 753-7260 x 251
>
> Direct: (803) 404-5535
>
> Cell: (703) 585-2101
>
>
> A Service of the Independent Media Foundation
>
> ____________________________________________________________________________
> From: [email protected]
> <[email protected]> on behalf of Wayne Merricks
> <[email protected]>
> Sent: Thursday, January 26, 2017 11:48:37 AM
> To: [email protected]
> Subject: Re: [RDD] Interesting USB Serial Issue
> Hi,
>
> Probably not related but I had a similar issue when using a real serial
> port.  It would be fine for a few days and then would stop receiving via
> Riv.
>
> In the end I stopped using Rivendell as a go between and used screen
> combined with some shell scripts to relay to Riv via rmlsend.  It has
> been reliable ever since.
>
> Its worth a try either way although it may not make a difference:
>
> http://rivendell.tryphon.org/wiki/Switchers#The_macros_didn.27t_work
>
>
> On 26/01/17 00:32, Steve Varholy wrote:
> > Ouch. That's not good.
> >
> > Sent from my iPhone
> >
> >> On Jan 25, 2017, at 7:25 PM, Cowboy <[email protected]> wrote:
> >>
> >>> On Wednesday 25 January 2017 06:26:14 pm Steve Varholy wrote:
> >>> Any thoughts? Is is a bug in the USB driver perhaps?
> >> It's a bug in the USB BIOS implementation.
> >>
> >> I searched for weeks for a way to reset the bus without
> >> re-loading BIOS.
> >> I found none.
> >>
> >> --
> >> Cowboy
> >>
> >> http://cowboy.cwf1.com
> >>
> >> "The four building blocks of the universe are fire, water, gravel and
> >> vinyl."
> >>         -- Dave Barry
> >> _______________________________________________
> >> Rivendell-dev mailing list
> >> [email protected]
> >> http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
> > _______________________________________________
> > Rivendell-dev mailing list
> > [email protected]
> > http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
>
> _______________________________________________
> Rivendell-dev mailing list
> [email protected]
> http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
>
>
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