diff options
Diffstat (limited to 'include/linux/leds.h')
| -rw-r--r-- | include/linux/leds.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h index 6a599dce7f9..a57611d0c94 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -13,8 +13,9 @@ #define __LINUX_LEDS_H_INCLUDED #include <linux/list.h> -#include <linux/spinlock.h> #include <linux/rwsem.h> +#include <linux/spinlock.h> +#include <linux/timer.h> #include <linux/workqueue.h> struct device; @@ -30,8 +31,8 @@ enum led_brightness { struct led_classdev { const char *name; - int brightness; - int max_brightness; + enum led_brightness brightness; + enum led_brightness max_brightness; int flags; /* Lower 16 bits reflect status */ @@ -68,7 +69,7 @@ struct led_classdev { const char *default_trigger; /* Trigger to use */ unsigned long blink_delay_on, blink_delay_off; - struct delayed_work blink_work; + struct timer_list blink_timer; int blink_brightness; struct work_struct set_brightness_work; @@ -139,6 +140,16 @@ extern void led_blink_set_oneshot(struct led_classdev *led_cdev, */ extern void led_set_brightness(struct led_classdev *led_cdev, enum led_brightness brightness); +/** + * led_update_brightness - update LED brightness + * @led_cdev: the LED to query + * + * Get an LED's current brightness and update led_cdev->brightness + * member with the obtained value. + * + * Returns: 0 on success or negative error value on failure + */ +extern int led_update_brightness(struct led_classdev *led_cdev); /* * LED Triggers |