include/linux/leds.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
11 #include <dt-bindings/leds/common.h>
32 /* This is obsolete/useless. We now support variable maximum brightness. */
47  * struct led_lookup_data - represents a single LED lookup entry
65 	 * default <color:function> tuple, for backward compatibility
66 	 * with in-driver hard-coded LED names used as a fallback when
79 	 * only LEDs exposed by drivers of hot-pluggable devices should
101 	unsigned int brightness;  member
128 	/* Brightness off also disables hw-blinking so it is a separate action */
133 	/* Set LED brightness level
135 	 * that can sleep while setting brightness.
138 					  enum led_brightness brightness);
140 	 * Set LED brightness level immediately - it can block the caller for
144 				       enum led_brightness brightness);
145 	/* Get LED brightness level */
150 	 * and if both are zero then a sensible default should be chosen.
153 	 * Deactivate blinking again when the brightness is set to LED_OFF
192 	/* true if activated - deactivate routine uses it to do cleanup */
204 	 * Return 0 on success. Return -EOPNOTSUPP when the passed flags are not
215 	 * Deactivate hardware blink control by setting brightness to LED_OFF via
252  * led_classdev_register_ext - register a new object of LED class with
267  * led_classdev_register - register a new object of LED class
321  * led_blink_set - set blinking with software fallback
334  * led_cdev->brightness_set() will not stop the blinking,
341  * led_blink_set_nosleep - set blinking, guaranteed to not sleep
353  * led_blink_set_oneshot - do a oneshot software blink
360  * delay_off time, ignoring the request if another one-shot
364  * delay_on and leave the led on after the on-off cycle.
372  * led_set_brightness - set LED brightness
374  * @brightness: the brightness to set it to
376  * Set an LED's brightness, and, if necessary, cancel the
380 void led_set_brightness(struct led_classdev *led_cdev, unsigned int brightness);
383  * led_set_brightness_sync - set LED brightness synchronously
385  * @value: the brightness to set it to
387  * Set an LED's brightness immediately. This function will block
396  * led_update_brightness - update LED brightness
399  * Get an LED's current brightness and update led_cdev->brightness
407  * led_get_default_pattern - return default pattern
409  * @led_cdev: the LED to get default pattern for
413  * Return:    Allocated array of integers with default pattern from device tree
419  * led_sysfs_disable - disable LED sysfs interface
427  * led_sysfs_enable - enable LED sysfs interface
435  * led_compose_name - compose LED class device name
450  * led_sysfs_is_disabled - check if LED sysfs interface is disabled
457 	return led_cdev->flags & LED_SYSFS_DISABLE;  in led_sysfs_is_disabled()
477 	/* LED-private triggers have this set */
522 	led_cdev->trigger_data = trigger_data;  in led_set_trigger_data()
527 	return led_cdev->trigger_data;  in led_get_trigger_data()
608  * Generic LED platform data for describing LED names and default triggers.
634 /* For the leds-gpio driver */
690 	struct led_classdev *led_cdev, unsigned int brightness);
693 	struct led_classdev *led_cdev, enum led_brightness brightness) { }  in led_classdev_notify_brightness_hw_changed()  argument
697  * struct led_pattern - pattern interval settings
699  * @brightness: pattern interval brightness
703 	int brightness;  member