Breaking it down

The following subsections explain pretty much each line of the preceding Hello, world C code. Remember that although the program appears very small and trivial, there is a lot to be understood regarding it and the surrounding LKM framework. The rest of this chapter focuses on this and goes into great detail. I highly recommend that you take the time to read through and understand these fundamentals first. This will help you immensely in later, possibly difficult-to-debug situations.