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| rxtx is a native interface to serial ports in java.
| Copyright 1997-2002 by Trent Jarvi
| This library is free software; you can redistribute it and/or
| modify it under the terms of the GNU Lesser General Public
| License as published by the Free Software Foundation; either
| version 2.1 of the License, or (at your option) any later version.
| This library is distributed in the hope that it will be useful,
| but WITHOUT ANY WARRANTY; without even the implied warranty of
| Lesser General Public License for more details.
| The following has been added to allow RXTX to be distributed with Sun
| Microsystem's CommAPI library as suggested by the FSF.
| A program that contains no derivative of any portion of RXTX, but
| is designed to work with RXTX by being compiled or linked with it,
| is considered a "work that uses the Library" subject to the terms and
| conditions of the GNU Lesser General Public License.
| As a special exception, the copyright holders of RXTX give you
| permission to link RXTX with independent modules that communicate with
| RXTX solely through the Sun Microsytems CommAPI interface, regardless of
| the license terms of these independent modules, and to copy and distribute
| the resulting combined work under terms of your choice, provided that
| every copy of the combined work is accompanied by a complete copy of
| the source code of RXTX (the version of RXTX used to produce the
| combined work), being distributed under the terms of the GNU Lesser General
| Public License plus this exception. An independent module is a
| module which is not derived from or based on RXTX.
| Note that people who make modified versions of RXTX are not obligated
| to grant this special exception for their modified versions; it is
| their choice whether to do so. The GNU Lesser General Public License
| gives permission to release a modified version without this exception; this
| exception also makes it possible to release a modified version which
| carries forward this exception.
| You should have received a copy of the GNU Lesser General Public
| License along with this library; if not, write to the Free
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include <termios.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
int main(int argc, char *argv[])
int i, fd ;
struct termios ttyset;
if (argc < 1 )
printf("usage ./testSerial /dev/ttyS0\n");
fd = open (argv[1], O_RDWR | O_NOCTTY | O_NONBLOCK );
// wait for minicom/rxtx to start and user to press a key
// You can set up the port in minicom/rxtx now. Dont
// exit minicom until you have hit a key to continue.
// get the attributes.
tcgetattr( fd, &ttyset );
/* print the attributes */
fprintf(stderr, "c_iflag=%#x\n", ttyset.c_iflag);
fprintf(stderr, "c_lflag=%#x\n", ttyset.c_lflag);
fprintf(stderr, "c_oflag=%#x\n", ttyset.c_oflag);
fprintf(stderr, "c_cflag=%#x\n", ttyset.c_cflag);
fprintf(stderr, "c_cc[]: ");
for(i=0; i<NCCS; i++)
fprintf(stderr,"%d=%x ", i, ttyset.c_cc[i]);
fprintf(stderr,"\n" );