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/*
* sys/sysmacros.h
*
* Constructs to create and pick apart dev_t. This applies to the Linux 2.6
* 32-bit dev_t format.
*/
#ifndef _SYS_SYSMACROS_H
#define _SYS_SYSMACROS_H
#ifndef _SYS_TYPES_H
# include <sys/types.h>
#endif
static __inline__ int major(dev_t __d)
{
return (__d >> 8) & 0xfff;
}
static __inline__ int minor(dev_t __d)
{
return (__d & 0xff) | ((__d >> 12) & 0xfff00);
}
static __inline__ dev_t makedev(int __ma, int __mi)
{
return ((__ma & 0xfff) << 8) | (__mi & 0xff) | ((__mi & 0xfff00) << 12);
}
#endif /* _SYS_SYSMACROS_H */
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