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Revision: 1.1
Committed: Sun Nov 6 17:17:37 2005 UTC (18 years, 8 months ago) by root
Branch: MAIN
CVS Tags: HEAD
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# User Rev Content
1 root 1.1 NAME
2     RCU - Remote Control Unit Interface
3    
4     SYNOPSIS
5     use RCU;
6    
7     DESCRIPTION
8     This module provides a generic interface to remote control units (only
9     receivers at the moment, as I cannot test more). It only provides an
10     abstract management interface, other modules are required for the
11     hardware access (RCU::Irman and RCU::Lirc are included, however).
12    
13     GETTING STARTED
14     Please read RCU::Receipts to get some idea on how to proceed after you
15     installed the module (testing & standard techniques).
16    
17     THE RCU CLASS
18     The RCU class provides a general interface to anything you might want to
19     do to, it represents your application.
20    
21     $rcu = new RCU "interface-spec"
22     Creates a new RCU application. "interface" must be an interface
23     specification similar to DBI's DSN:
24    
25     RCU:ifname:arg:arg...
26    
27     Examples: low-level interface (without "RCU::" prefix) or an
28     arrayref containing name and constructor arguments. If the interface
29     name has a "::" prefix it will be used as-is (without that prefix,
30     of course).
31    
32     For a much better interface, see RCU::Event.
33    
34     $rcu->interface
35     Return the RCU::Interface object used by this RCU object.
36    
37     ($keycode, $repeat) = $rcu->get
38     ($keycode, $repeat) = $rcu->poll
39     Simplified interface to the RCU (See also RCU::Event), return a
40     cooked keycode and a repeat count (initial keypress = 0, increasing
41     while the key is pressed). If "get" is called in scalar context it
42     only returns unrepeated keycodes.
43    
44     This interface is problematic: no key-up events are generated, and
45     the repeat events occur pseudo-randomly and have no time relation
46     between each other, so better use the event-based interface provided
47     by RCU::Event.
48    
49     THE RCU::Key CLASS
50     This class collects information about rcu keys.
51    
52     THE RCU::Interface CLASS
53     "RCU::Interface" provides the base class for all rcu interfaces, it is
54     rarely used directly.
55    
56     fd Return a unix filehandle that can be polled, or -1 if this is not
57     possible.
58    
59     ($time, $raw, $cooked) = $if->get
60     ($time, $raw, $cooked) = $if->poll
61     Wait until a RCU event happens and return it. If the device can
62     translate raw keys events (e.g. hex key codes) into meaningful names
63     ("cooked" keys) it will return the cooked name as second value,
64     otherwise both return values are identical.
65    
66     "get" always returns an event, waiting if neccessary, while "poll"
67     only checks for an event: If one is pending it is returned,
68     otherwise "poll" returns nothing.
69    
70     SEE ALSO
71     RCU::Irman, RCU::Lirc.
72    
73     AUTHOR
74     This perl extension was written by Marc Lehmann <schmorp@schmorp.de>.
75    
76     BUGS
77     No send interface.
78