基于嵌入式Linux的USB3.0视频驱动的改进  

Improvement of USB3.0 Video Driver Based on Embedded Linux

作　　者：孙红[1,2] 秦守文[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]上海现代光学系统重点实验室,上海200000

出　　处：《计算机测量与控制》2013年第12期3374-3376,共3页Computer Measurement &Control

基　　金：国家自然科学基金项目(61170277);上海市教委科研创新重点项目(12zz137);上海市重点学科建设项目(S30504)

摘　　要：虽然嵌入式Linux下的USB技术有了突飞猛进的发展,但嵌入式USB3.0的应用和普及还处于发展的起步阶段;因此,以LZ3014开发板为开发平台,嵌入式Linux为操作系统,奥尼ANC C289摄像头为视频采集设备,完成了新的数据传输机制的设计,并实现了USB3.0视频驱动的改进及优化;经过测试,数据传输速率较未改进前有了明显提高,但CPU占用率较高。Although the USB technology is developed a lot in the embedded Linux OS, the popularity and application of the embedded USB3.0 is still in the initial stage. This paper set the LZ3014 development board as the development platform, the embedded Linux as oper- ating system, and the Aoni ANC C289 camera as the video capture device to design the new data transmission mechanism, and completed the USB3. 0 video driver improvement and optimization. After testing, the data transmission rate is improved a lot, but the CPU occupancy rate is little higher than before.

关 键 词：LINUX USB3 0 数据传输 视频 驱动 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]