From:	"Steve Chalkley" <sjc AT conceptii DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Why dose'nt this work ??
Date:	Mon, 10 Jan 2000 19:24:30 -0000
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Prashant TR <prashant_tr AT yahoo DOT com> wrote in message
news:Pine DOT LNX DOT 4 DOT 10 DOT 10001081354250 DOT 614-100000 AT yahoo DOT com...
>
> On Sat, 8 Jan 2000, Santosh . H wrote:
>
> >             Helpp!. Could someone please tell me why this bit o code
> > prints nothing.All this is supposed to do is to read in values direct
> > from com port and print 'em out
>
> That's because you need to do lots of other things like initializing the
> com port, setting the baud rate, no. of bits, etc. This is a slightly
> tough job,
> believe me. Fortunately, mouse drivers do this job.
>
> Prashant
>

I've never touched the serial ports from DJGPP but on the printf front try
using
    printf("%x\n", input[2]);

This way _any_ data in input[2] should be visible, if the serial port has
deposited something into your variable there's no guarantee that it's
printable :-)

It might also be a good idea to read the serial status register to see if
something is actually in there.


HTH


Steve Chalkley

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