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/*
* sys/sysmacros.h
*
* Constructs to create and pick apart dev_t. The double-underscore
* versions are macros so they can be used as constants.
*/
#ifndef _SYS_SYSMACROS_H
#define _SYS_SYSMACROS_H
#ifndef _SYS_TYPES_H
# include <sys/types.h>
#endif
#define __major(__d) (((__d) >> 8) & 0xfff)
static __inline__ int major(dev_t __d)
{
return __major(__d);
}
#define __minor(__d) (((__d) & 0xff)|(((__d) >> 12) & 0xfff00))
static __inline__ int minor(dev_t __d)
{
return __minor(__d);
}
#define __makedev(__ma, __mi) \
((((__ma) & 0xfff) << 8)|((__mi) & 0xff)|(((__mi) & 0xfff00) << 12))
static __inline__ dev_t makedev(int __ma, int __mi)
{
return __makedev(__ma, __mi);
}
#endif /* _SYS_SYSMACROS_H */
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