Basic Framework for PCI driver development in Linux

The basic framework for PCI driver development in Linux-general Linux technology-Linux programming and kernel information. For more information, see the following. PCI is a widely used bus standard. It provides many new features that are better than other bus standards (such as EISA) and has become the most widely used computer system, and the most common bus standard. Linux's inner nuclear energy well supports the PCI bus. This paper focuses on the Intel 386 architecture and discusses the basic framework for developing the PCI device driver program in Linux.

1. architecture of the PCI bus system

PCI is the abbreviation of Peripheral Component Interconnect. As a common bus interface standard, PCI is widely used in computer systems. PCI provides a complete set of bus interface specifications to describe how to connect peripheral devices in computer systems in a structured and structured manner, it also depicts the electrical characteristics and behavior conventions of peripheral devices during connection, and defines in detail how different components in a computer system interact correctly.

Whether on an Intel chip-based PC or an Alpha chip-based workstation, PCI is undoubtedly the most widely used bus interface standard. Unlike the old ISA bus, PCI completely separates bus subsystems in computer systems from storage subsystems) to complete the interaction with the bus subsystem, as shown in figure 1.


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Architecture of the PCI Subsystem