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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>raw1394_set_fcp_handler</TITLE
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>libraw1394: version 2.0.4</TH
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><H1
><A
NAME="API-raw1394-set-fcp-handler"
></A
><SPAN
CLASS="phrase"
><SPAN
CLASS="phrase"
>raw1394_set_fcp_handler</SPAN
></SPAN
></H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN1799"
></A
><H2
>Name</H2
>raw1394_set_fcp_handler&nbsp;--&nbsp;
     set FCP handler
 </DIV
><DIV
CLASS="refsynopsisdiv"
><A
NAME="AEN1802"
></A
><H2
>Synopsis</H2
><DIV
CLASS="funcsynopsis"
><P
></P
><A
NAME="AEN1804"
></A
><P
><CODE
><CODE
CLASS="FUNCDEF"
>fcp_handler_t raw1394_set_fcp_handler </CODE
>(raw1394handle_t handle, fcp_handler_t new_h);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN1812"
></A
><H2
>Arguments</H2
><P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>handle</CODE
></DT
><DD
><P
>&#13;     libraw1394 handle
    </P
></DD
><DT
><CODE
CLASS="parameter"
>new_h</CODE
></DT
><DD
><P
>&#13;     pointer to new handler
    </P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN1825"
></A
><H2
>Description</H2
><P
>&#13;   Function Control Protocol is defined in IEC 61883-1.
   </P
><P
>&#13;
   Sets the handler to be called when either FCP command or FCP response
   registers get written to <CODE
CLASS="parameter"
>new_h</CODE
>.  The default handler does nothing.
   In order to actually get FCP events, you have to enable it with
   <CODE
CLASS="function"
>raw1394_start_fcp_listen</CODE
> and can stop it with <CODE
CLASS="function"
>raw1394_stop_fcp_listen</CODE
>.
</P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN1832"
></A
><H2
>Returns</H2
><P
>&#13;   the old handler or NULL on failure (sets errno)
</P
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>