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authorJiri Kosina <jkosina@suse.cz>2014-11-20 14:42:02 +0100
committerJiri Kosina <jkosina@suse.cz>2014-11-20 14:42:02 +0100
commita02001086bbfb4da35d1228bebc2f1b442db455f (patch)
tree62ab47936cef06fd08657ca5b6cd1df98c19be57 /include/linux/leds.h
parenteff264efeeb0898408e8c9df72d8a32621035bed (diff)
parentfc14f9c1272f62c3e8d01300f52467c0d9af50f9 (diff)
Merge Linus' tree to be be to apply submitted patches to newer code than
current trivial.git base
Diffstat (limited to 'include/linux/leds.h')
-rw-r--r--include/linux/leds.h18
1 files changed, 15 insertions, 3 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 0287ab29668..a57611d0c94 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -13,8 +13,8 @@
#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>
@@ -31,8 +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 */
@@ -63,6 +63,8 @@ struct led_classdev {
unsigned long *delay_off);
struct device *dev;
+ const struct attribute_group **groups;
+
struct list_head node; /* LED Device list */
const char *default_trigger; /* Trigger to use */
@@ -138,6 +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