CHAPTER 1
The Raspberry Pi
Before considering the details about each resource within the Raspberry Pi, it is useful to take a high-level inventory. In this chapter, let’s just list what you get when you purchase a Pi.
In later chapters, you’ll be looking at each resource from two perspectives:
- The hardware itself—what it is and how it works
- The driving software and API behind it
In some cases, the hardware will have one or more kernel modules behind it, forming the device driver layer. They expose a software API that interfaces between the application and the hardware device. For example, applications communicate with the driver by using ioctl(2) ...
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