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各位大神：
我用的dm365芯片，我需要使用两个串口，但是我在设备里只看到一个串口驱动ttyS，我要加载另外一个串口的驱动，应该怎么编译内核，或者说内核中哪块是串口驱动，在devices driver中好像没看到，不甚感激！
祝好
