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From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: Asynchronous I/O on a serial device
Date: Sun, 12 Jun 2011 00:23:37 -0500
Date: 2011-06-12T00:23:37-05:00	[thread overview]
Message-ID: <it1ih3$vsu$1@munin.nbi.dk> (raw)
In-Reply-To: it0noa$ce3$1@munin.nbi.dk

"Kim Rostgaard Christensen" <krc@retrospekt.dk> wrote in message 
news:it0noa$ce3$1@munin.nbi.dk...
> Hi there
>
> I am desperately trying to implement a protocol on top of a serial 
> transport.
>
> I am running Debian, and for the moment using /dev/ttyACM0 for reading. 
> This works fine using standard the Text_IO package and In_File.
> Only, when I need to write to the device It fails because It is in In_File 
> mode - Obviously.
> Reset on the file handle gives me a USE_ERROR exception, probably due to 
> it being a special file - please correct me if I am wrong.

Stream_IO allows changing the mode of an open stream (specifically to handle 
this sort of problem). But whether that is allowed in your specific compiler 
I can't say -- you'll have to experiment.

                        Randy.





  reply	other threads:[~2011-06-12  5:23 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-11 21:46 Asynchronous I/O on a serial device Kim Rostgaard Christensen
2011-06-12  5:23 ` Randy Brukardt [this message]
2011-06-12  7:33   ` Kim Rostgaard Christensen
2011-06-12  5:42 ` Yannick Duchêne (Hibou57)
2011-06-12  7:49   ` Kim Rostgaard Christensen
2011-06-12 10:35     ` Kim Rostgaard Christensen
2011-06-12 11:04     ` Yannick Duchêne (Hibou57)
2011-06-12 18:06       ` Kim Rostgaard Christensen
2011-06-12 21:01 ` anon
2011-06-14  6:37   ` Kim Rostgaard Christensen
2011-06-15 17:02     ` Simon Clubley
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