fs.h File Reference

#include <stdint.h>
#include <stddef.h>

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Classes
struct	poll_table_struct
struct	file_operations
struct	file
struct	inode
struct	cdev
struct	device

Macros
#define	MKDEV(ma, mi)   (((unsigned int)(ma) << 20) | ((unsigned int)(mi)))
#define	MAJOR(dev)   ((unsigned int)(dev) >> 20)
#define	MINOR(dev)   ((unsigned int)(dev) & 0xFFFFFu)
#define	DCL_MAX_ERRNO   4095
#define	ERR_PTR(err)   ((void*)(long)(err))
#define	PTR_ERR(ptr)   ((long)(ptr))
#define	IS_ERR(ptr)   dcl_is_err(ptr)

Typedefs
typedef unsigned int	fop_flags_t
typedef unsigned int	__poll_t

Functions
int	register_chrdev_region (unsigned int from, unsigned int count, const char *name)
void	unregister_chrdev_region (unsigned int from, unsigned int count)

Macro Definition Documentation

DCL_MAX_ERRNO

#define DCL_MAX_ERRNO   4095

ERR_PTR

#define ERR_PTR

(

err

)

((void*)(long)(err))

IS_ERR

#define IS_ERR

(

ptr

)

dcl_is_err(ptr)

MAJOR

#define MAJOR

(

dev

)

((unsigned int)(dev) >> 20)

MINOR

#define MINOR

(

dev

)

((unsigned int)(dev) & 0xFFFFFu)

MKDEV

#define MKDEV	(		ma,
			mi
	)		(((unsigned int)(ma) << 20) | ((unsigned int)(mi)))

PTR_ERR

#define PTR_ERR

(

ptr

)

((long)(ptr))

Typedef Documentation

__poll_t

typedef unsigned int __poll_t

fop_flags_t

typedef unsigned int fop_flags_t

Function Documentation

register_chrdev_region()

int register_chrdev_region	(	unsigned int	from,
		unsigned int	count,
		const char *	name
	)

unregister_chrdev_region()

void unregister_chrdev_region	(	unsigned int	from,
		unsigned int	count
	)