include/sys/sysmacros.h


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#ifndef _SYS_SYSMACROS_H
#define _SYS_SYSMACROS_H

#define major(x) (((x) >> 8) & 0xff)
#define minor(x) ((x) & 0xff)
#define makedev(x,y) (((x)<<8)|((y)&0xff))

#endif