问题1、驱动的init函数声明错误
出错:
[root@localhost]# insmod phyinfo.ko
insmod: error inserting 'phyinfo.ko': -159951552 Success
insmod: error inserting 'phyinfo.ko': -159951552 Success
原因:
驱动实现不对:
static void phyinfo_init(void)
{
......
......
}
module_init(phyinfo_init);
解决:
phyinfo_init函数必须有返回值!如可以实现定义如下:
static int phyinfo_init(void)
{
......
......
return 0;
}
问题2、linux/config.h头文件问题
出错:
/root/source/my-drivers/chartest/chartest.c:1:26: error: linux/config.h: No such file or directory
make[2]: *** [/root/source/my-drivers/chartest/chartest.o] Error 1
make[1]: *** [_module_/root/source/my-drivers/chartest] Error 2
make[1]: Leaving directory `/root/source/linux-2.6.30.5'
make: *** [modules] Error 2
make[2]: *** [/root/source/my-drivers/chartest/chartest.o] Error 1
make[1]: *** [_module_/root/source/my-drivers/chartest] Error 2
make[1]: Leaving directory `/root/source/linux-2.6.30.5'
make: *** [modules] Error 2
原因:
The file include/linux/config.h has been removed from 2.6.19 kernel.
解决:
1、把#include 修改为如下:
#ifndef _LINUX_CONFIG_H
#define _LINUX_CONFIG_H
#include
#endif
#define _LINUX_CONFIG_H
#include
#endif
2、直接删掉#include
3、touch一个空的linux/config.h
3、touch一个空的linux/config.h
