Commit ced321bf authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

driver core: device.h: add RW and RO attribute macros 



Make it easier to create attributes without having to always audit the
mode settings.

Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Tested-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e4b63603

include/linux/device.h

+21 −7
Original line number Diff line number Diff line
@@ -48,6 +48,10 @@ struct bus_attribute { 


#define BUS_ATTR(_name, _mode, _show, _store)	\

	struct bus_attribute bus_attr_##_name = __ATTR(_name, _mode, _show, _store)

#define BUS_ATTR_RW(_name) \

	struct bus_attribute bus_attr_##_name = __ATTR_RW(_name)

#define BUS_ATTR_RO(_name) \

	struct bus_attribute bus_attr_##_name = __ATTR_RO(_name)



extern int __must_check bus_create_file(struct bus_type *,

					struct bus_attribute *);
@@ -262,8 +266,11 @@ struct driver_attribute { 
};



#define DRIVER_ATTR(_name, _mode, _show, _store) \

struct driver_attribute driver_attr_##_name =		\

	__ATTR(_name, _mode, _show, _store)

	struct driver_attribute driver_attr_##_name = __ATTR(_name, _mode, _show, _store)

#define DRIVER_ATTR_RW(_name) \

	struct driver_attribute driver_attr_##_name = __ATTR_RW(_name)

#define DRIVER_ATTR_RO(_name) \

	struct driver_attribute driver_attr_##_name = __ATTR_RO(_name)



extern int __must_check driver_create_file(struct device_driver *driver,

					const struct driver_attribute *attr);
@@ -416,6 +423,10 @@ struct class_attribute { 


#define CLASS_ATTR(_name, _mode, _show, _store) \

	struct class_attribute class_attr_##_name = __ATTR(_name, _mode, _show, _store)

#define CLASS_ATTR_RW(_name) \

	struct class_attribute class_attr_##_name = __ATTR_RW(_name)

#define CLASS_ATTR_RO(_name) \

	struct class_attribute class_attr_##_name = __ATTR_RO(_name)



extern int __must_check class_create_file(struct class *class,

					  const struct class_attribute *attr);
@@ -423,7 +434,6 @@ extern void class_remove_file(struct class *class, 
			      const struct class_attribute *attr);



/* Simple class attribute that is just a static string */



struct class_attribute_string {

	struct class_attribute attr;

	char *str;
@@ -512,6 +522,10 @@ ssize_t device_store_bool(struct device *dev, struct device_attribute *attr, 


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

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

#define DEVICE_ATTR_RW(_name) \

	struct device_attribute dev_attr_##_name = __ATTR_RW(_name)

#define DEVICE_ATTR_RO(_name) \

	struct device_attribute dev_attr_##_name = __ATTR_RO(_name)

#define DEVICE_ULONG_ATTR(_name, _mode, _var) \

	struct dev_ext_attribute dev_attr_##_name = \

		{ __ATTR(_name, _mode, device_show_ulong, device_store_ulong), &(_var) }