debian man page for comedi_lock

COMEDI_LOCK(3)							 Comedi reference						    COMEDI_LOCK(3)

NAME
       comedi_lock - subdevice reservation

SYNOPSIS
       #include <comedilib.h>

       int comedi_lock(comedi_t * device, unsigned int subdevice);

DESCRIPTION
       The function comedi_lock reserves a subdevice for use by the current process. While the lock is held, no other process is allowed to read,
       write, or configure that subdevice, although other processes can read information about the subdevice. The lock is released by
       comedi_unlock, or when comedi_close is called on device.

RETURN VALUE
       If successful, 0 is returned. If there is an error, -1 is returned.

AUTHORS
       David Schleef <ds@schleef.org>
	   Author.

       Frank Mori Hess <fmhess@users.sourceforge.net>
	   Author.

       Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
	   Author.

       Bernd Porr <tech@linux-usb-daq.co.uk>
	   Author.

       Ian Abbott <abbotti@mev.co.uk>
	   Author.

COPYRIGHT
       Copyright (C) 1998-2003 David Schleef
       Copyright (C) 2001-2003, 2005, 2008 Frank Mori Hess
       Copyright (C) 2002-2003 Herman Bruyninckx
       Copyright (C) 2012 Bernd Porr
       Copyright (C) 2012 Ian Abbott

       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.

Comedi								    07/06/2012							    COMEDI_LOCK(3)