Who has time to scour the internet for a device driver to work with hardware such as a video card or an external hard drive?

毕竟，谁有那么多的闲暇，去互联网上苦苦搜寻与显卡或外接硬盘之类硬件配套的设备驱动程序呢？

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This article analyzes the system construction of video capture device driver, and proposes two kinds of design methods and implementations. It also compares their advantages and disadvantages.

分析了视频采集驱动程序的体系结构，并较为详细地提出了两种不同的设计方案，比较和分析了两种设计方案的优缺点。

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