Video-driver design for robust signal processing applications

摘要

This document is not intended to fully break down Linux device drivers in general. There are plenty of resources available to do that, including the Linux source code itself. Instead, this document explored the hardware APIs used to implement device drivers for embedded, non-standard devices. Using the EP9312 System on Chip platform as an example, several device drivers, of different types are broken down to examine those APIs that are customized for the hardware interface. Understanding how these APIs are designed and implemented is the first step in writing a device driver for a new device.