/usr/include/x86_64-linux-gnu/visp3/io/vpParallelPort.h is in libvisp-io-dev 3.0.0-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* This file is part of the ViSP software.
* Copyright (C) 2005 - 2015 by Inria. All rights reserved.
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.txt at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using ViSP with software that can not be combined with the GNU
* GPL, please contact Inria about acquiring a ViSP Professional
* Edition License.
*
* See http://visp.inria.fr for more information.
*
* This software was developed at:
* Inria Rennes - Bretagne Atlantique
* Campus Universitaire de Beaulieu
* 35042 Rennes Cedex
* France
*
* If you have questions regarding the use of this file, please contact
* Inria at visp@inria.fr
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Description:
* Parallel port management.
*
* Authors:
* Fabien Spindler
*
*****************************************************************************/
#ifndef vpParallelPort_h
#define vpParallelPort_h
/*!
\file vpParallelPort.h
\brief Parallel port management under unix.
*/
#include <visp3/core/vpConfig.h>
#ifdef VISP_HAVE_PARPORT
#include <iostream>
# include <stdio.h>
# include <errno.h>
# include <linux/parport.h>
# include <linux/ppdev.h>
# include <visp3/io/vpParallelPortException.h>
/*!
\class vpParallelPort
\ingroup group_io_parallel_port
\brief Parallel port management under unix.
The code below shows how to send a data over the parallel port.
\code
#include <visp3/core/vpConfig.h>
#include <visp3/io/vpParallelPort.h>
int main()
{
#ifdef VISP_HAVE_PARPORT
vpParallelPort parport;
unsigned char data = 5; // 0x00000101 = 5 in decimal
parport.sendData(data); // D0 and D2 are set to logical level 1
#endif
}
\endcode
*/
class VISP_EXPORT vpParallelPort
{
public:
vpParallelPort();
~vpParallelPort();
void sendData(unsigned char &data);
unsigned char getData();
private:
void open();
void close();
private:
int fd; // parallel port descriptor
char device[FILENAME_MAX];
} ;
#endif
#endif
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