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Newsgroups: comp.lang.ada
Date: Mon, 20 Aug 2018 08:12:40 -0700 (PDT)
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Subject: Re: file descriptor of a serial port
From: jan.de.kruyf@gmail.com
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Xref: reader02.eternal-september.org comp.lang.ada:54189
Date: 2018-08-20T08:12:40-07:00
List-Id: <comp.lang.ada>

On Monday, August 20, 2018 at 4:58:27 PM UTC+2, joak...@kth.se wrote:
> Den m=C3=A5ndag 20 augusti 2018 kl. 16:33:15 UTC+2 skrev jan.de...@gmail.=
com:
> > On Monday, August 20, 2018 at 4:21:20 PM UTC+2, J-P. Rosen wrote:
> > > Le 20/08/2018 =C3=A0 15:56, jan.....com a =C3=A9crit :
> > > > Hallo,
> > > >=20
> > > > I try to set up a custom baudrate on a serial port, which I believe
> > > > is done with the C ioctl procedure.
> > > >=20
> > > GNAT.Serial_Communications has a Set procedure to set various
> > > parameters, including baud rate. No need to play with the low level.
> > >=20
> > > --=20
> > > J-P. Rosen
> > > Adalog
> > > 2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX
> > > Tel: +33 1 45 29 21 52, Fax: +33 1 45 29 25 00
> > > http://www.adalog.fr
> >=20
> >=20
> > Thanks J-P but:
> >=20
> > Pity, does not work.
> >=20
> > type Data_Rate is
> >      (B75, B110, B150, B300, B600, B1200, B2400, B4800, B9600,
> >       B19200, B38400, B57600, B115200);
> >=20
> > procedure Set
> >      (Port      : Serial_Port;
> >       Rate      : Data_Rate        :=3D B9600;
> >       Bits      : Data_Bits        :=3D CS8;
> >       Stop_Bits : Stop_Bits_Number :=3D One;
> >       Parity    : Parity_Check     :=3D None;
> >       Block     : Boolean          :=3D True;
> >       Local     : Boolean          :=3D True;
> >       Flow      : Flow_Control     :=3D None;
> >       Timeout   : Duration         :=3D 10.0);
> >=20
> >=20
> > I quit desperately need B100_000 to cure someone else's mess.
> >=20
> > j.
>=20
> Hallo Jan,
>=20
> You could try to copy-paste the contents of GNAT.Serial_Communications in=
to a package of your own choice and then make changes to the code as you wi=
sh, for example adding a function that gives access to the file descriptor =
or adding your own enumeration value B100_000 to the Data_Rate type.
>=20
> Best regards,
> Joakim

Yes Joakim,
I have done that for the test harness, but I tried to keep away from it as =
it does not make very nice code.

Thanks,

j.