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From: "Alex Mentis" <foo@invalid.invalid>
Newsgroups: comp.lang.ada
Subject: Re: GNAT.Serial_Communications
Date: Fri, 22 Apr 2011 13:55:23 +0000 (UTC)
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Date: 2011-04-22T13:55:23+00:00
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tonyg wrote:

> On Apr 20, 3:22�pm, "Alex Mentis" <f...@invalid.invalid> wrote:
> > tonyg wrote:
> > 
> > > I don't think this would work because the port's settings need to
> > > be overwritten after it is opened, as Gnat sercom will open it
> > > with control flow enabled.
> > 
> > So open the port before calling this code. I don't see why that
> > wouldn't work.
> 
> Yes that would work. I think I am going to mod the gnat-sercom package
> though for elegance's sake. Many thanks for taking the time, looking
> at it has improved my knowledge of Ada.

For what it's worth, it may even be more elegant to just extend
GNAT.Serial_Communications by writing a child package (e.g.:
GNAT.Serial_Communications.Flow_Control) that defines any necessary
types and overloads the Set procedure, adding a flow control parameter.

As a child package, your extension would have visibility of all the
types and subprograms in the parent, but you wouldn't have to hack up
GNAT.Serial_Communications or recompile it, in case you have some other
code that uses it as-written, or if you ever want to use the unmodified
version in the future.