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CentOS 7.0 - man page for ieee1284_claim (centos section 3)

IEEE1284_CLAIM(3)				      Functions 				    IEEE1284_CLAIM(3)

NAME
ieee1284_claim - claim access to the port
SYNOPSIS
#include <ieee1284.h> int ieee1284_claim(struct parport *port);
DESCRIPTION
With the exception of ieee1284_get_deviceid(3), ieee1284_claim must be called on an open port before any other libieee1284 function for accessing a device on it.
RETURN VALUE
E1284_OK Success. Note that, unless the F1284_EXCL flag was specified to start with, the port should be released within a "reasonable" amount of time. E1284_NOMEM There is not enough memory. E1284_INVALIDPORT The port parameter is invalid (for instance, it might not have been opened yet). E1284_SYS There was a problem at the operating system level. The global variable errno has been set appropriately.
SEE ALSO
ieee1284_release(3)
AUTHOR
Tim Waugh <twaugh@redhat.com> Author.
COPYRIGHT
Copyright (C) 2001-2003 Tim Waugh [FIXME: source] 06/17/2014 IEEE1284_CLAIM(3)


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