diff options
Diffstat (limited to 'include/linux/backlight.h')
-rw-r--r-- | include/linux/backlight.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/backlight.h b/include/linux/backlight.h index 0f5f57858a23..8c4f884db6b4 100644 --- a/include/linux/backlight.h +++ b/include/linux/backlight.h | |||
@@ -36,18 +36,18 @@ struct backlight_device; | |||
36 | struct fb_info; | 36 | struct fb_info; |
37 | 37 | ||
38 | struct backlight_ops { | 38 | struct backlight_ops { |
39 | unsigned int options; | 39 | const unsigned int options; |
40 | 40 | ||
41 | #define BL_CORE_SUSPENDRESUME (1 << 0) | 41 | #define BL_CORE_SUSPENDRESUME (1 << 0) |
42 | 42 | ||
43 | /* Notify the backlight driver some property has changed */ | 43 | /* Notify the backlight driver some property has changed */ |
44 | int (*update_status)(struct backlight_device *); | 44 | int (* const update_status)(struct backlight_device *); |
45 | /* Return the current backlight brightness (accounting for power, | 45 | /* Return the current backlight brightness (accounting for power, |
46 | fb_blank etc.) */ | 46 | fb_blank etc.) */ |
47 | int (*get_brightness)(struct backlight_device *); | 47 | int (* const get_brightness)(struct backlight_device *); |
48 | /* Check if given framebuffer device is the one bound to this backlight; | 48 | /* Check if given framebuffer device is the one bound to this backlight; |
49 | return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */ | 49 | return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */ |
50 | int (*check_fb)(struct fb_info *); | 50 | int (* const check_fb)(struct fb_info *); |
51 | }; | 51 | }; |
52 | 52 | ||
53 | /* This structure defines all the properties of a backlight */ | 53 | /* This structure defines all the properties of a backlight */ |
@@ -86,7 +86,7 @@ struct backlight_device { | |||
86 | registered this device has been unloaded, and if class_get_devdata() | 86 | registered this device has been unloaded, and if class_get_devdata() |
87 | points to something in the body of that driver, it is also invalid. */ | 87 | points to something in the body of that driver, it is also invalid. */ |
88 | struct mutex ops_lock; | 88 | struct mutex ops_lock; |
89 | struct backlight_ops *ops; | 89 | const struct backlight_ops *ops; |
90 | 90 | ||
91 | /* The framebuffer notifier block */ | 91 | /* The framebuffer notifier block */ |
92 | struct notifier_block fb_notif; | 92 | struct notifier_block fb_notif; |
@@ -103,7 +103,7 @@ static inline void backlight_update_status(struct backlight_device *bd) | |||
103 | } | 103 | } |
104 | 104 | ||
105 | extern struct backlight_device *backlight_device_register(const char *name, | 105 | extern struct backlight_device *backlight_device_register(const char *name, |
106 | struct device *dev, void *devdata, struct backlight_ops *ops); | 106 | struct device *dev, void *devdata, const struct backlight_ops *ops); |
107 | extern void backlight_device_unregister(struct backlight_device *bd); | 107 | extern void backlight_device_unregister(struct backlight_device *bd); |
108 | extern void backlight_force_update(struct backlight_device *bd, | 108 | extern void backlight_force_update(struct backlight_device *bd, |
109 | enum backlight_update_reason reason); | 109 | enum backlight_update_reason reason); |