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我对 linux 驱动程序开发很陌生。请发布一个代码片段,它将说明 linux 驱动程序以捕获任何键盘按下,这将使 capslk 或 scrllok 或 numlok LED 闪烁。我正在使用带有内核版本 3.5 的 ubuntu 3。提前致谢。