diff options
Diffstat (limited to 'include/linux/leds.h')
| -rw-r--r-- | include/linux/leds.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h index 3aade1d8f41..0d9b5eed714 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -16,6 +16,7 @@ #include <linux/spinlock.h> #include <linux/rwsem.h> #include <linux/timer.h> +#include <linux/workqueue.h> struct device; /* @@ -69,6 +70,9 @@ struct led_classdev { struct timer_list blink_timer; int blink_brightness; + struct work_struct set_brightness_work; + int delayed_set_value; + #ifdef CONFIG_LEDS_TRIGGERS /* Protects the trigger data below */ struct rw_semaphore trigger_lock; @@ -175,6 +179,23 @@ extern void led_trigger_blink_oneshot(struct led_trigger *trigger, unsigned long *delay_on, unsigned long *delay_off, int invert); +/** + * led_trigger_rename_static - rename a trigger + * @name: the new trigger name + * @trig: the LED trigger to rename + * + * Change a LED trigger name by copying the string passed in + * name into current trigger name, which MUST be large + * enough for the new string. + * + * Note that name must NOT point to the same string used + * during LED registration, as that could lead to races. + * + * This is meant to be used on triggers with statically + * allocated name. + */ +extern void led_trigger_rename_static(const char *name, + struct led_trigger *trig); #else @@ -237,4 +258,20 @@ struct gpio_led_platform_data { struct platform_device *gpio_led_register_device( int id, const struct gpio_led_platform_data *pdata); +enum cpu_led_event { + CPU_LED_IDLE_START, /* CPU enters idle */ + CPU_LED_IDLE_END, /* CPU idle ends */ + CPU_LED_START, /* Machine starts, especially resume */ + CPU_LED_STOP, /* Machine stops, especially suspend */ + CPU_LED_HALTED, /* Machine shutdown */ +}; +#ifdef CONFIG_LEDS_TRIGGER_CPU +extern void ledtrig_cpu(enum cpu_led_event evt); +#else +static inline void ledtrig_cpu(enum cpu_led_event evt) +{ + return; +} +#endif + #endif /* __LINUX_LEDS_H_INCLUDED */ |