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/*
* device.h
*
* definitions for device ID
*/
#ifdef USEMKDEVH
#include <sys/mkdev.h>
#else /* !USEMKDEVH */
# ifdef USEMKNODH
# include <sys/mknod.h>
# else /* !USEMKNODH */
# ifdef SVR4
# include <sys/sysmacros.h>
# endif
# endif /* !USEMKNODH */
#endif /* !USEMKDEVH */
#ifdef SVR4
#define BIT_MAJOR 15
#define BIT_MINOR 18
#else
#define BIT_MAJOR 8
#define BIT_MINOR 8
#endif
#define MASK_MAJOR (((u_long)1 << BIT_MAJOR) - 1)
#define MASK_MINOR (((u_long)1 << BIT_MINOR) - 1)
#ifndef major
#define major(n) ((((u_long)(n)) >> BIT_MINOR) & MASK_MAJOR)
#endif
#ifndef minor
#define minor(n) (((u_long)(n)) & MASK_MINOR)
#endif
#ifndef makedev
#define makedev(ma, mi) (((((u_long)(ma)) & MASK_MAJOR) << BIT_MAJOR) \
| (((u_long)(mi)) & MASK_MINOR))
#endif
#if MSDOS
typedef short r_dev_t;
#else
typedef dev_t r_dev_t;
#endif
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