Using termios/stdio to check for characters

[Correo Fernando-ruiz (E-mail)]

> -----Mensaje original-----
> De: OUTWATER ~ KEITH J /5G3110 [mailto:vac4050 at tueng.rsc.raytheon.com]
> Enviado el: miercoles, 11 de julio de 2001 18:23
> Para: rtems-users at oarcorp.com
> Asunto: Using termios/stdio to check for characters
> 
> 
> Greeings all - 
> Does anyone know of a way to check a stream to see if 
> characters are available 
> for input using termios and/or stdio?
> 
Setting NONBLOCK read the filedes and read() returning 0 bytes readed.
But this a poor solution. 
You need set the ioserial driver with an event for reception
and rtems_waitevent(RTMS_EVENT_X,ticstimeout); 

Do you want more information about a rtems_serial_driver for a 14550 UART?

I can help you if you want.

> Basically, I want to perform a non-blocking check on the 
> console port for 
> received characters.
> 
> Thanks,
> keith