**/*source file name is basic.c */**
#include <linux/init.h>
#include <linux/module.h>
/*MODULE_LICENSE("Dual BSD/GPL");*/
static int hello_init(void)
{
printk(KERN_ALERT "Hello, world\n");
return 0;
}
static void hello_exit(void)
{
printk(KERN_ALERT "Goodbye, cruel world\n");
}
module_init(hello_init);
module_exit(hello_exit);
=====================================
now make file for ubuntu
/*at first type on ur terminal that $(uname -r) then u will get the version..
that is using on ur system */
obj-m +=basic.o
KDIR =//usr/src/linux-headers-3.13.0-44-generic
all:
$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
clean:
rm -rf *.o *.ko *.mod.* *.symvers *.order
================================================
To run the code
$sudo insmode basic.ko
$dmesg
u will get the output
$sudo rmmod basic.ko
$dmesg