Kernel Timer Based Multi-Tasking with Linux Device Driver Programming on Raspberry pi
In this four LED are chosen and four timers are created/defined. First timer, timer, has timeout period as one second, second timer, timer1, has timeout period as two seconds, third timer, timer 2, has timeout period as three seconds and finally last timer. timer3, has timeout period as 4 seconds.
The timer are made to run on periodic basis