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Re: Non-blocking mode read from serial port


Thanks a lot, 
but all of that means that i should use VTIME=0 and VMIN=0 to work propertly or should i change something (the bug explained below) in the termiostty.c in order to use VMIN >0?If that doesn't work how could i read only one byte to one byte from the serial port?

Ciao

Nick Garnett <nickg@ecoscentric.com> schrieb am 23.02.04 19:20:08:
> 
> Jonathan Larmour <jifl@eCosCentric.com> writes:
> 
> > Ali Rodgo wrote:
> > > Ok thanks again
> > >  I have changed the VTIME to "0" and VMIN to "1" to read only one
> > > character from the /dev/ser1 but i can only read 128 or 0, something
> > > wrong?The option O_NONBLOCKING is on eCos not supported?
> > 
> > VMIN > 0 doesn't work wonderfully either:
> > http://bugs.ecos.sourceware.org/show_bug.cgi?id=91710
> 
> But the straightforward O_NONBLOCK flag works fine. It's just the
> wierd termio VMIN/VTIME stuff that is not quite all there. And for
> blocking with a timeout, try using select().
> 
> -- 
> Nick Garnett                    eCos Kernel Architect
> http://www.ecoscentric.com      The eCos and RedBoot experts
> 
> 
> -- 
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> 


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