Zynq: Reading from stdin returns immediately

[Joel Sherrill]

Thia is related to the set method for ioctls in the console sriver. It
returned a failure in some versions and that broke anything changing
termios settings.

On Tue, Feb 9, 2021, 4:32 AM <Jan.Sommer at dlr.de> wrote:

> I stand corrected.
> It works with current master.
> That should make searching easier.
>
> > -----Original Message-----
> > From: users <users-bounces at rtems.org> On Behalf Of Jan.Sommer at dlr.de
> > Sent: Tuesday, February 9, 2021 10:58 AM
> > To: users at rtems.org
> > Subject: Zynq: Reading from stdin returns immediately
> >
> > Hello,
> >
> > I tried to read data from stdin via scanf in RTEMS5.1 for some user
> input for a
> > Zynq based board, but it returns immediately with 0.
> > Also fscanf, read or fgetc do not block and return immediately. The
> flags for
> > stdin show that the O_NONBLOCK flag is not set.
> > I tried to check with the termios application from the testsuite since
> it uses
> > those functions as well.
> > There seems to be the same behavior. At least I only see the test begin
> and
> > end markers, but never the "Press any key to check the termios input
> > capabilities (20s remaining)" as mentioned in the example output.
> > The test also finishes immediately.
> >
> > I also found this thread from Joel, which might be related, but I am not
> sure:
> > https://lists.rtems.org/pipermail/devel/2020-November/063533.html
> >
> > The rtems_shell seem to work however. At least there the input is
> correctly
> > received and processed.
> > Does someone have a hint where I would need to look? I will try with the
> > current master as well, but don't expect that this will change much.
> >
> > Best regards,
> >
> >     Jan
> >
> >
> > Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) German Aerospace
> > Center Institute for Software Technology | Software for Space Systems and
> > Interactive Visualization | Lilienthalplatz 7 | 38108 Braunschweig |
> Germany
> >
> > Jan Sommer
> > Telephone +49 531 295-2494 | Telefax 0531 295-2767 | jan.sommer at dlr.de
> > DLR.de/SC
> >
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