[Bug 2176] fishy behavior in termios tx task mode

[bugzilla-daemon at rtems.org]

https://www.rtems.org/bugzilla/show_bug.cgi?id=2176

--- Comment #2 from Jeffrey Hill <johill at lanl.gov> 2014-04-16 16:47:32 CDT ---
I tried some more at getting the task mode termios driver working today. Its
certainly possible this is just confusion about how it works; I have been
looking hard at the documentation in the source code :-). Task mode termios
remains to be elusive from my perspective and so I switched instead to termios
polled mode, with a behind the scenes interrupt based pump, and that works just
fine.

I really cant see using the IRQ based termios mode. The termios can give you an
endless supply of characters in the ISR, and you have to deal with them at the
expense of destroying the RT latency DYN.

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