kdev_t.h File Reference

#include <uapi/linux/kdev_t.h>

Go to the source code of this file.

Macros
#define	MINORBITS   20
#define	MINORMASK   ((1U << MINORBITS) - 1)
#define	MAJOR(dev)   ((unsigned int) ((dev) >> MINORBITS))
#define	MINOR(dev)   ((unsigned int) ((dev) & MINORMASK))
#define	MKDEV(ma, mi)   (((ma) << MINORBITS) | (mi))
#define	print_dev_t(buffer, dev)   sprintf((buffer), "%u:%u\n", MAJOR(dev), MINOR(dev))
#define	format_dev_t(buffer, dev)

Macro Definition Documentation

#define format_dev_t	(		buffer,
			dev
	)

Value:

({                              \
        sprintf(buffer, "%u:%u", MAJOR(dev), MINOR(dev));   \
		buffer;                           \
    })

Definition at line 16 of file kdev_t.h.

#define MAJOR

(

dev

)

((unsigned int) ((dev) >> MINORBITS))

Definition at line 9 of file kdev_t.h.

#define MINOR

(

dev

)

((unsigned int) ((dev) & MINORMASK))

Definition at line 10 of file kdev_t.h.

#define MINORBITS   20

Definition at line 6 of file kdev_t.h.

#define MINORMASK   ((1U << MINORBITS) - 1)

Definition at line 7 of file kdev_t.h.

#define MKDEV	(		ma,
			mi
	)		(((ma) << MINORBITS) | (mi))

Definition at line 11 of file kdev_t.h.

#define print_dev_t	(		buffer,
			dev
	)		sprintf((buffer), "%u:%u\n", MAJOR(dev), MINOR(dev))

Definition at line 13 of file kdev_t.h.