device.h File Reference

#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/devres.h>
#include <linux/kobject.h>
#include <linux/fs.h>
#include <linux/sysfs.h>
#include <linux/property.h>
#include <linux/fwnode.h>

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Classes
struct	device_type
struct	class
struct	device_attribute

Macros
#define	__DEVICE_ATTR_RW_MODE(_name, _mode)    __ATTR(_name, _mode, _name##_show, _name##_store)
#define	__DEVICE_ATTR_RW(_name)   __DEVICE_ATTR_RW_MODE(_name, 0644)
#define	DEVICE_ATTR_RW(_name)    struct device_attribute dev_attr_##_name = __DEVICE_ATTR_RW(_name)
#define	DEVICE_ATTR_RO(_name)    struct device_attribute dev_attr_##_name = __ATTR_RO(_name)
#define	DEVICE_ATTR(_name, _mode, _show, _store)
#define	DEVICE_ATTR_WO(_name)    struct device_attribute dev_attr_##_name = __ATTR_WO(_name)
#define	dev_warn_once(dev, fmt, ...)

Functions
int	class_register (const void *cls)
void	class_unregister (const void *cls)
struct device *	device_create (const void *class, const void *parent, unsigned int devt, void *drvdata, const char *fmt,...)
void	device_destroy (const void *class, unsigned int devt)
int	device_add (struct device *dev)
void	device_del (struct device *dev)
void	device_initialize (struct device *dev)
int	dev_set_name (struct device *dev, const char *fmt,...)
void *	get_device (const void *dev)
void	put_device (const void *dev)
const char *	dev_driver_string (const struct device *dev)
int	dev_printk (const char *level, const struct device *dev, const char *fmt,...)
void	platform_device_unregister (struct platform_device *pdev)
struct dmem_cgroup_region *	dmem_cgroup_register_region (u64 size, const char *name_fmt,...)
void	dmem_cgroup_unregister_region (struct dmem_cgroup_region *region)
void	check_move_unevictable_folios (struct folio_batch *fbatch)

Macro Definition Documentation

__DEVICE_ATTR_RW

#define __DEVICE_ATTR_RW

(

_name

)

__DEVICE_ATTR_RW_MODE(_name, 0644)

__DEVICE_ATTR_RW_MODE

#define __DEVICE_ATTR_RW_MODE	(		_name,
			_mode
	)		__ATTR(_name, _mode, _name##_show, _name##_store)

dev_warn_once

#define dev_warn_once	(		dev,
			fmt,
			...
	)

Value:

    do {                                \
        static int __dcl_warned_once;               \
        if (!__dcl_warned_once) {               \
            __dcl_warned_once = 1;              \
            dev_warn((dev), fmt, ##__VA_ARGS__);        \
        }                           \
    } while (0)

DEVICE_ATTR

#define DEVICE_ATTR	(		_name,
			_mode,
			_show,
			_store
	)

Value:

    struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, \
                               _show, _store)

DEVICE_ATTR_RO

#define DEVICE_ATTR_RO

(

_name

)

struct device_attribute dev_attr_##_name = __ATTR_RO(_name)

DEVICE_ATTR_RW

#define DEVICE_ATTR_RW

(

_name

)

struct device_attribute dev_attr_##_name = __DEVICE_ATTR_RW(_name)

DEVICE_ATTR_WO

#define DEVICE_ATTR_WO

(

_name

)

struct device_attribute dev_attr_##_name = __ATTR_WO(_name)

Function Documentation

check_move_unevictable_folios()

void check_move_unevictable_folios

(

struct folio_batch *

fbatch

)

class_register()

int class_register

(

const void *

cls

)

class_unregister()

void class_unregister

(

const void *

cls

)

dev_driver_string()

const char * dev_driver_string

(

const struct device *

dev

)

dev_printk()

int dev_printk	(	const char *	level,
		const struct device *	dev,
		const char *	fmt,
			...
	)

dev_set_name()

int dev_set_name	(	struct device *	dev,
		const char *	fmt,
			...
	)

device_add()

int device_add

(

struct device *

dev

)

device_create()

struct device * device_create	(	const void *	class,
		const void *	parent,
		unsigned int	devt,
		void *	drvdata,
		const char *	fmt,
			...
	)

device_del()

void device_del

(

struct device *

dev

)

device_destroy()

void device_destroy	(	const void *	class,
		unsigned int	devt
	)

device_initialize()

void device_initialize

(

struct device *

dev

)

dmem_cgroup_register_region()

struct dmem_cgroup_region * dmem_cgroup_register_region	(	u64	size,
		const char *	name_fmt,
			...
	)

dmem_cgroup_unregister_region()

void dmem_cgroup_unregister_region

(

struct dmem_cgroup_region *

region

)

get_device()

void * get_device

(

const void *

dev

)

platform_device_unregister()

void platform_device_unregister

(

struct platform_device *

pdev

)

put_device()

void put_device

(

const void *

dev

)