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1、debian 系统代码正常,点灯成功。
2、tina 系统用chmod设置权限也无效, fopen 得到的依然是空指针。
3、tina 系统用echo 直接对 led 操作是有效的。
个人推断: fopen 不能调用用户空间的led文件?只能用 include LDE.h 才能操作?
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