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7<TITLE>CAMERA_I2CContextSwitch*</TITLE>
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11<H1 align="left">CAMERA_I2CContextSwitch* <IMG src="../image/TWL.gif" align="middle"></H1>
12<H2>Syntax</H2>
13<DL>
14  <DD>
15  <CODE>#include &lt;twl/camera.h&gt;</CODE><BR>
16  <BR>
17  <CODE><A href="CAMERAResult.html">CAMERAResult</A> CAMERA_I2CContextSwitch(<A href="CAMERASelect.html">CAMERASelect</A> camera, <A href="CAMERAContext.html">CAMERAContext</A> context);</CODE>
18  <BR>
19  <CODE><A href="CAMERAResult.html">CAMERAResult</A> CAMERA_I2CContextSwitchAsync(<A href="CAMERASelect.html">CAMERASelect</A> camera, <A href="CAMERAContext.html">CAMERAContext</A> context, <A href="CAMERACallback.html">CAMERACallback</A> callback, void *arg);</CODE>
20</DL>
21<H2>Arguments</H2>
22<TABLE border="1" width="100%">
23  <TBODY>
24    <TR>
25      <TD width="13%"><EM><STRONG>camera</STRONG></EM></TD>
26      <TD width="87%">Camera to change the context for (<CODE>CAMERA_SELECT_IN</CODE> or <CODE>CAMERA_SELECT_OUT</CODE>).</TD>
27    </TR>
28    <TR>
29      <TD width="13%"><EM><STRONG>context</STRONG></EM></TD>
30      <TD width="87%">Context to change.</TD>
31    </TR>
32    <TR>
33      <TD width="13%"><EM><STRONG>callback</STRONG></EM></TD>
34      <TD width="87%">Function that is called when asynchronous processing has completed.</TD>
35    </TR>
36    <TR>
37      <TD width="13%"><EM><STRONG>arg</STRONG></EM></TD>
38      <TD width="87%">Arguments when the callback function is invoked.</TD>
39    </TR>
40  </TBODY>
41</TABLE>
42
43<H2>Return Values</H2>
44<P>Returns <CODE>CAMERA_RESULT_SUCCESS</CODE> if changes were possible.</P>
45
46<H2>Description</H2>
47<P>
48Switches the camera settings context. It is faster to switch the context than to configure settings individually.<BR><BR> To switch the settings for the specified camera to the specified context (A or B), you cannot set <SPAN class="argument">camera</SPAN> to <CODE>CAMERA_SELECT_NONE</CODE> or <SPAN class="argument">context</SPAN> to <CODE>CAMERA_CONTEXT_BOTH</CODE>.<BR> <BR> Unlike <code>CAMERA_I2CContextSwitch</code>, the <code>CAMERA_I2CContextSwitchAsync</code> function will return control immediately and run asynchronously. Use <SPAN class="argument">callback</SPAN> to confirm that processing has completed.
49</P>
50
51<H2>See Also</H2>
52<P><CODE><A href="CAMERASelect.html">CAMERASelect</A>, <A href="CAMERAContext.html">CAMERAContext</A>, <A href="CAMERACallback.html">CAMERACallback</A>, <A href="CAMERAResult.html">CAMERAResult</A></CODE></P>
53<H2>Revision History</H2>
54<P>2007/10/12 Initial version.</P>
55<hr><p>CONFIDENTIAL</p></body>
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