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GPS直连dm8148的串口2,没有生成对应的设备节点



 你好,请问下,GPS模块直连dm8148的串口2,没有生成对应的设备节点,我无法读取节点来获取数据;请问下是啥原因?(串口驱动不是自带并已经实现的么? 应该不需要改吧)