基于V4L2的视频驱动程序设计与实现

摘要

This paper expounds the development methods of Linux device driver,and introduces the driver model of V4L2.On these bases,a DM355 VPFE driver supporting Hitachi DI-SC110 camera is designed and developed.The video capture application based on V4L2 proves the correctness of that driver.Furthermore,we propose a general method of developing video driver,based on the standard of V4L2.%阐述了Linux设备驱动程序开发方法,介绍了V4L2驱动模型。以此为基础,在TMS320DM355开发平台下,研究开发TMS320DM355的视频前端模块（VPFE）的驱动,实现了对日立摄像头DI-SC110的支持。基于V4L2的视频采集程序验证了驱动的正确性。提出了基于V4L2的视频驱动程序开发一般方法。