41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/*
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* $Id: hellop.c,v 1.4 2004/09/26 07:02:43 gregkh Exp $
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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MODULE_LICENSE("Dual BSD/GPL");
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/*
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* These lines, although not shown in the book,
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* are needed to make hello.c run properly even when
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* your kernel has version support enabled
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*/
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/*
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* A couple of parameters that can be passed in: how many times we say
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* hello, and to whom.
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*/
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static char *whom = "world";
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static int howmany = 1;
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module_param(howmany, int, S_IRUGO);
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module_param(whom, charp, S_IRUGO);
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static int hello_init(void)
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{
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int i;
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for (i = 0; i < howmany; i++)
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printk(KERN_ALERT "(%d) Hello, %s\n", i, whom);
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return 0;
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}
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static void hello_exit(void)
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{
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printk(KERN_ALERT "Goodbye, cruel world\n");
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}
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module_init(hello_init);
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module_exit(hello_exit);
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