The same print statement can be used in kernel code and user-level code, so that the driver and test programs can be managed in the same way with regard to extra messages.
同样的输出语句既可以用在内核代码中也可以用于用户级代码中，因此不管是驱动程序还是测试程序都可以用同样的方式来输出消息。
These test programs are truly tiny: they contain just a few lines of code and are concerned with only whatever point the driver sample attempts to illustrate.
测试程序实际上也是很小的：它们只包括很少几行代码，只牵涉该示例驱动所阐述的要点。
A hardware and driver-in-the-loop test rig for automotive electronic stability programs(ESP) is built based on the technologies of driving simulator and hardware-in-the-loop simulation.
利用汽车驾驶模拟器技术和硬件在回路仿真技术，建立了汽车电子稳定性系统（ESP）硬件与驾驶员在回路仿真试验台。
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