lkmpg/examples/hello-1.c
Cyril Brulebois d85944d107 Mention pr_info() rather than KERN_INFO
The latter might have been used along with printk() in an earlier
version, but pr_info() is getting used consistently so adjust the
#include comments accordingly.

For the avoidance of doubt, pr_info() actually comes from printk.h,
which gets #include'd by kernel.h.
2021-08-16 21:53:22 +02:00

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C

/*
* hello-1.c - The simplest kernel module.
*/
#include <linux/kernel.h> /* Needed for pr_info() */
#include <linux/module.h> /* Needed by all modules */
int init_module(void)
{
pr_info("Hello world 1.\n");
/* A non 0 return means init_module failed; module can't be loaded. */
return 0;
}
void cleanup_module(void)
{
pr_info("Goodbye world 1.\n");
}
MODULE_LICENSE("GPL");