| COMEDI_FILENO(3) | Comedi reference | COMEDI_FILENO(3) |
comedi_fileno - get file descriptor for open Comedilib device
#include <comedilib.h>
int comedi_fileno(comedi_t * device);
The function comedi_fileno returns the file descriptor for the device device. This descriptor can then be used as the file descriptor parameter of read, write, etc. This function is intended to mimic the standard C library function fileno.
The returned file descriptor should not be closed, and will become invalid when comedi_close is called on device.
A file descriptor, or -1 on error.
David Schleef <ds@schleef.org>
Frank Mori Hess <fmhess@users.sourceforge.net>
Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
Bernd Porr <tech@linux-usb-daq.co.uk>
Ian Abbott <abbotti@mev.co.uk>
Éric Piel <piel@delmic.com>
Copyright © 1998-2003 David Schleef
Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
Copyright © 2002-2003 Herman Bruyninckx
Copyright © 2012 Bernd Porr
Copyright © 2012 Ian Abbott
Copyright © 2012, 2015 Éric Piel
This document is part of Comedilib. In the context of this document, the term "source code" as defined by the license is interpreted as the XML source.
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, version 2.1 of the License.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
| 01/31/2023 | Comedi |