[ECOS] How to temporarily hijack console serial port

[ECOS] How to temporarily hijack console serial port

[Tim Hatton]

Hi,
I am currently in the process of building an application with eCos (2.0.43)
running on our own hardware which uses an ATMEL AT91RM9200 CPU. 

I have a strange requirement which I'm not sure how to fulfil at the moment.
Our application uses many serial ports talking to other devices (via termios
drivers) and  one device has been configured eCos to use one of the serial
ports as the C console (stdin/stdout) which is used as a user interface for
configuration etc.
So far, so good. We now have a requirement to also be able to plug a device
into the user interface port sometimes. So now I would like to allow the
application to temporarily "hijack" the console serial port and open it as a
termios port for a while to talk to the device and then "return" it to it's
user interface use. 

So, is there anyway to tell eCos (or I guess the C library) to stop using a
particular port as the console at run time and then re-instate it? (There's
no problem within the context of the application to know when to change from
one "mode" to the other, I just don't know how to do it). 

If anyone has any ideas I'd be very grateful,
Best regards,
Tim Hatton

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