#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
static char *randomstr = "no string specified";
module_param(mystring, charp, 0000);
MODULE_PARM_DESC(randomstr, "just some text");
static int __init func_init(void)
{
printk(KERN_CRIT "testing testing 1..2..3..\n=============\n");
// kern_info only prints to log files
printk(KERN_CRIT "if you specified an argument, randomstr is: %s\n", randomstr);
return 0;
}
static void __exit func_exit(void)
{
printk(KERN_CRIT "Exiting...\n");
}
module_init(func_init);
module_exit(func_exit);
/*
Make file contents:
obj-m = part3.o
KVERSION = $(shell uname -r)
all:
         make -C /lib/modules/$(KVERSION)/build M=$(PWD) modules
clean:
         make -C /lib/modules/$(KVERSION)/build M=$(PWD) clean
*/