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Serial IO_SERIAL_NON_BLOCKING flag

Question asked by Teckna Teckna on Nov 5, 2012
Latest reply on Nov 22, 2012 by ivanpajuelo

Hi everyone,

 

I would like to know why the serial drivers (both polled and interrupt) open function tests the IO_SERIAL_NON_BLOCKING flag to be non simultaneous with the IO_SERIAL_TRANSLATION, IO_SERIAL_ECHO or IO_SERIAL_XON_XOFF flags. Which problem can arise if a device is opened with IO_SERIAL_NON_BLOCKING flag and one of the other IO_SERIAL_TRANSLATION, IO_SERIAL_ECHO or IO_SERIAL_XON_XOFF flags?

 

Many thanks

Teckna

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