backlight: backlight: Document inline functions in backlight.h (d160fd4e) · Commits · 戴 / test

include/linux/backlight.h

+16 −0

Original line number	Diff line number	Diff line
		@@ -268,6 +268,10 @@ struct backlight_device {
		int use_count;
		};

		/**
		* backlight_update_status - force an update of the backlight device status
		* @bd: the backlight device
		*/
		static inline int backlight_update_status(struct backlight_device *bd)
		{
		int ret = -ENOENT;
		@@ -361,6 +365,18 @@ extern int backlight_device_set_brightness(struct backlight_device *bd, unsigned

		#define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)

		/**
		* bl_get_data - access devdata
		* @bl_dev: pointer to backlight device
		*
		* When a backlight device is registered the driver has the possibility
		* to supply a void * devdata. bl_get_data() return a pointer to the
		* devdata.
		*
		* RETURNS:
		*
		* pointer to devdata stored while registering the backlight device.
		*/
		static inline void * bl_get_data(struct backlight_device *bl_dev)
		{
		return dev_get_drvdata(&bl_dev->dev);