add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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#ifndef _TOOLS_ASM_EXPORT_H
#define _TOOLS_ASM_EXPORT_H
 
#define EXPORT_SYMBOL(x)
#define EXPORT_SYMBOL_GPL(x)
 
#endif /* _TOOLS_ASM_EXPORT_H */