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阐述了Linux系统下实现设备驱动程序的基本框架。在介绍MPEG-4压缩卡工作原理的基础上,讨论了Linux系统下PCI接口的MPEG-4视频压缩卡驱动程序的设计与实现过程,并提供了相应的函数及程序的编写。实验结果证明了该驱动程序的实用性。
Describes the basic framework for implementing device drivers under Linux. Based on the introduction of the working principle of MPEG-4 compression card, the design and implementation process of MPEG-4 video compression card driver for PCI interface in Linux system are discussed, and the corresponding functions and programs are provided. The experimental results demonstrate the practicality of this driver.