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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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>libraw1394: version 2.0.4</TH
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><H1
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>Chapter 1. Introduction</H1
><P
>&#13;      The Linux kernel's IEEE 1394 subsystem provides access to the raw 1394 bus
      through the raw1394 module.  This includes the standard 1394 transactions
      (read, write, lock) on the active side, isochronous stream receiving and
      sending and dumps of data written to the FCP_COMMAND and FCP_RESPONSE
      registers.  raw1394 uses a character device to communicate to user
      programs using a special protocol.
    </P
><P
>&#13;      libraw1394 was created with the intent to hide that protocol from
      applications so that
      <P
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><OL
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><LI
><P
>&#13;	    the protocol has to be implemented correctly only once.
	  </P
></LI
><LI
><P
>&#13;	    all work can be done using easy to understand functions instead of
	    handling a complicated command structure.
	  </P
></LI
><LI
><P
>&#13;	    only libraw1394 has to be changed when raw1394's interface changes.
	  </P
></LI
></OL
>
    </P
><P
>&#13;      To fully achieve the goals (especially 3) libraw1394 is distributed under
      the LGPL (Lesser General Public License - see file COPYING.LIB for more
      information.) to allow linking with any program, be it open source or
      binary only.  The requirements are that the libraw1394 part can be
      replaced (relinked) with another version of the library and that changes
      to libraw1394 itself fall under LGPL again.  Refer to the LGPL text for
      details.
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