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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
#include <klibc/compiler.h>
#include <sys/types.h>
#define __major(__d) ((int)(((__d) >> 8) & 0xfffU))
__static_inline int _major(dev_t __d)
{
return __major(__d);
}
#define major(__d) _major(__d)
#define __minor(__d) ((int)(((__d) & 0xffU)|(((__d) >> 12) & 0xfff00U)))
__static_inline int _minor(dev_t __d)
{
return __minor(__d);
}
#define minor(__d) _minor(__d)
#define __makedev(__ma, __mi) \
((dev_t)((((__ma) & 0xfffU) << 8)| \
((__mi) & 0xffU)|(((__mi) & 0xfff00U) << 12)))
__static_inline dev_t _makedev(int __ma, int __mi)
{
return __makedev(__ma, __mi);
}
#define makedev(__ma, __mi) _makedev(__ma, __mi)
#endif /* _SYS_SYSMACROS_H */
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