1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2<html>
3
4<head>
5<META http-equiv="Content-Type" content="text/html; charset=windows-1252">
6<META name="GENERATOR" content="IBM WebSphere Studio Homepage Builder Version 7.0.0.0 for Windows">
7<META http-equiv="Content-Style-Type" content="text/css">
8<title>CARD_UnlockRom</title>
9<LINK rel="stylesheet" href="../../css/nitro.css" type="text/css">
10</head>
11
12<body>
13
14<h1 align="left">CARD_UnlockRom <img src="../../image/NTR.gif"align="middle"><img src="../../image/TWL.gif" align="middle"></H1>
15<H2>Syntax</H2>
16
17<dl>
18  <dd>
19<CODE>#include &lt;nitro/card.h&gt;</CODE><BR>
20  <BR>
21  <CODE>void	CARD_UnlockRom(u16 lock_id);</CODE><br>
22  <br>
23  </dd>
24</dl>
25<h2>Arguments</h2>
26<TABLE border="1" width="100%">
27  <TBODY>
28    <TR>
29<TD width="13%"><EM><STRONG><CODE>lock_id</CODE></STRONG></EM></TD>
30<TD width="87%">ID used for locking a card</TD>
31    </TR>
32  </TBODY>
33</TABLE>
34
35<h2>Return Values</h2>
36<p>None.</p>
37
38<H2>Description</H2>
39<P>Unlocks the access bus to a Game Card ROM device. If another module (with another ID) is already waiting for release, access rights go to the waiting module.<BR>If the specified ID refers to a device that is currently locked, the bus is unlocked, and control is returned.<BR>If the ID refers to a device that is not currently locked, a warning message is output, and the <code><a href="../../os/debug/OS_Panic.html">OS_Panic</a></code> function forcibly stops the process.<BR><BR> The function identifies devices with ROM when it executes, automatically selecting the Game Card or Game Pak and unlocking the bus. <BR>
40</P>
41<H2>Note</H2>
42<P>
43<FONT color="#800000">All functions that access a Game Card ROM device must first lock the access bus.<BR> You cannot access a Game Card ROM device and a backup device simultaneously.<BR> While one bus is locked, other bus locks are forced to wait.<BR></FONT>
44</P>
45<h2>See Also</h2>
46<p><A href="../../os/spinLock/OS_UnlockCard.html"><CODE>OS_UnlockCard</CODE></A><BR> <A href="../../os/spinLock/OS_UnlockCartridge.html"><CODE>OS_UnlockCartridge</CODE></A><BR> <A href="CARD_LockRom.html"><CODE>CARD_LockRom</CODE></A></p>
47
48<H2>Revision History</H2>
49<P>
502009/01/30 Corrected the explanation of behavior for an invalid lock ID.<br /> 2004/09/06 Corrected the description of the prototype.<br /> 2004/08/31 Added description that indicates that this function will always succeed.<br /> 2004/08/04 In <B>Description</B>, changed &quot;unlock&quot; to &quot;release&quot; in one place.<br /> 2004/07/23 Changed lock ID type from <code>u32</code> to <code>u16</code>.<br /> 2004/07/10 Added description concerning bus lock and exclusive control of access with backup device.<br /> 2004/07/05 Initial version.
51</P>
52<hr><p>CONFIDENTIAL</p></body>
53</html>
54