Managing time with kernel timers

During the device driver development, it may be necessary to perform several repeated operations at specific moments in time, or we may have to postpone the execution of some code after a well-defined delay. In these situations, kernel timers come to help the device driver developer.

In this recipe, we will see how to use kernel timers to do repeated jobs at well-defined periods of time, or to defer a job until after a well-defined time interval.

Getting ready

For a simple example of kernel timers, we can still use a kernel module where we define a kernel timer during a module's initialization function.

In the chapter_05/timer directory of GitHub resources, there are two simple examples...