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 <title><![CDATA[求用中断方式实现按键程序]]></title>
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 <description><![CDATA[Latest 20 replies of 求用中断方式实现按键程序]]></description>
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 <title><![CDATA[回 3楼(shufangqian) 的帖子]]></title>
 <description><![CDATA[驱动我就是按照你这样写的，编译也没有错~~~可是insmod的时候，就报错了，怎么回事啊？

# insmod pirs.ko 
Unable to handle kernel NULL pointer dereference at virtual address 00000040
pgd = c3a7c000
[00000040] *pgd=33a5e031, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1]
last sysfs file: /s ..]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=11230#75543]]></link>
 <author><![CDATA[jinmonkey]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Sun, 17 Apr 2011 13:23:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[3q,在看看]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=11230#75384]]></link>
 <author><![CDATA[yx2010]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Sun, 17 Apr 2011 03:17:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我用的是TQ2440开发板，有可能LED接的管脚不太一样，这是我在原来驱动基础上改的，我现在再看串口驱动，看不懂，大家交流一下啊，有什么书推荐一下吗，谢谢了]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=11230#75362]]></link>
 <author><![CDATA[shufangqian]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Sun, 17 Apr 2011 02:19:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[驱动的Makefile
obj-m&nbsp;&nbsp;&nbsp;&nbsp;+= button.o 
测试程序
#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;unistd.h&gt;
#include &lt;sys/ioctl.h&gt;
#include &lt;sys/types.h&gt;
#include &lt;sys/stat.h&gt;
#include &lt;fcntl.h&gt;
#include &lt;sys/select.h&gt;
#include &lt;s ..]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=11230#75360]]></link>
 <author><![CDATA[shufangqian]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Sun, 17 Apr 2011 02:14:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[驱动

#include &lt;linux/module.h&gt;
#include &lt;linux/kernel.h&gt;
#include &lt;linux/fs.h&gt;
#include &lt;linux/init.h&gt;
#include &lt;linux/delay.h&gt;
#include &lt;linux/poll.h&gt;
#include &lt;linux/irq.h&gt;
#include &lt;asm/irq.h&gt;
#include &lt;linux/interrupt.h&gt;
#include &lt;asm/u ..]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=11230#75358]]></link>
 <author><![CDATA[shufangqian]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Sun, 17 Apr 2011 02:11:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[按下键，灯亮，蜂鸣器响，松开键，灯灭，蜂鸣器不响]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=11230#75356]]></link>
 <author><![CDATA[shufangqian]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Sun, 17 Apr 2011 02:10:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没人响应啊。，自己顶个]]></description>
 <link><![CDATA[http://121.40.142.80/read.php?tid=11230#71383]]></link>
 <author><![CDATA[yx2010]]></author>
 <category><![CDATA[Linux技术交流区]]></category>
 <pubdate><![CDATA[Thu, 07 Apr 2011 04:15:36 +0000]]></pubdate>
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