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Commit ced321bf authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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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
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+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) }