1IEEE1284_REF(3)                    Functions                   IEEE1284_REF(3)
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NAME

6       ieee1284_ref, ieee1284_unref - modify a port´s reference count
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SYNOPSIS

9       #include <ieee1284.h>
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11       int ieee1284_ref(struct parport *port);
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13       int ieee1284_unref(struct parport *port);
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DESCRIPTION

16       If you want to free the port list from ieee1284_find_ports but open one
17       of the ports later on, you will need to prevent it from being destroyed
18       in ieee1284_free_ports. Each port has a reference count, and you can
19       use ieee1284_ref to increment it and ieee1284_unref to decrement it.
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21       If you use ieee1284_ref at any stage, you must later call
22       ieee1284_unref to relinquish the extra reference. If you do not do
23       this, the resources associated with the port will not be cleaned up.
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25       If you have not previously used ieee1284_ref on a port, you must not
26       use ieee1284_unref on it.
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RETURN VALUE

29       These functions return the number of references held after the
30       increment or decrement.
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SEE ALSO

33       ieee1284_open(3)
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AUTHOR

36       Tim Waugh <twaugh@redhat.com>
37           Author.
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40       Copyright © 2001-2003 Tim Waugh
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44[FIXME: source]                   07/22/2010                   IEEE1284_REF(3)
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