[RDD] I am starting to hate USB

Robert Orr orrrobert at gmail.com
Thu May 26 11:18:07 EDT 2016


Just thought I'd point out that your motherboard likely has serial on it,
you just need a serial header to db9 plate adaptor to use it.
Have a great day,
Robert

On Thu, May 26, 2016 at 8:47 AM, Rob Landry <41001140 at interpring.com> wrote:

>
> WCRI has a Rivendell machine that uses a USB-to-serial converter to talk
> to a Broadcast Tools audio switcher. The machine occasionally "forgets" the
> USB-to-serial converter (which is normally /dev/ttyUSB0) and then wakes up
> and remaps it as /dev/ttyUSB1.
>
> Now, I have a udev rule in place that automatically creates a symlink o
> whatever device the converter gets mapped as... but if it gets remapped
> while rdairplay is running, rdairplay can't talk to the switcher until I
> stop and restart the Rivendell service.
>
> On Tuesday, I discovered that I could get around the problem by stopping
> and restarting the ripcd daemon, so I set up a cron job to detect the
> remapping of the USB-to-serial converter and autoatically stop and restart
> ripcd.
>
> That turned out to be a mistake; it seems to have caused rdairplay to lose
> the ability to chain to the next day's log. Two days in a row the station
> has gone silent at midnight, and we've had to load the log manually.
>
> The only solution I can think of is to use a machine with an actual serial
> port.
>
> Have any of y'all enocuntered this issue? If so, how did you deal with it?
>
>
> Rob
>
> --
> Я там, где ребята толковые,
> Я там, где плакаты "Вперёд",
> Где песни рабочие новые
> Страна трудовая поёт.
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>
>
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