include/linux/leds.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
11 #include <dt-bindings/leds/common.h>
28 /* This is obsolete/useless. We now support variable maximum brightness. */
40 	 * default <color:function> tuple, for backward compatibility
41 	 * with in-driver hard-coded LED names used as a fallback when
54 	 * only LEDs exposed by drivers of hot-pluggable devices should
66 	enum led_brightness	 brightness;  member
93 	/* Set LED brightness level
95 	 * that can sleep while setting brightness.
98 					  enum led_brightness brightness);
100 	 * Set LED brightness level immediately - it can block the caller for
104 				       enum led_brightness brightness);
105 	/* Get LED brightness level */
110 	 * and if both are zero then a sensible default should be chosen.
113 	 * Deactivate blinking again when the brightness is set to LED_OFF
146 	/* true if activated - deactivate routine uses it to do cleanup */
163  * led_classdev_register_ext - register a new object of LED class with
178  * led_classdev_register - register a new object of LED class
214  * led_blink_set - set blinking with software fallback
225  * led_cdev->brightness_set() will not stop the blinking,
231  * led_blink_set_oneshot - do a oneshot software blink
238  * delay_off time, ignoring the request if another one-shot
242  * delay_on and leave the led on after the on-off cycle.
248  * led_set_brightness - set LED brightness
250  * @brightness: the brightness to set it to
252  * Set an LED's brightness, and, if necessary, cancel the
257 			enum led_brightness brightness);
260  * led_set_brightness_sync - set LED brightness synchronously
262  * @value: the brightness to set it to
264  * Set an LED's brightness immediately. This function will block
274  * led_update_brightness - update LED brightness
277  * Get an LED's current brightness and update led_cdev->brightness
285  * led_get_default_pattern - return default pattern
287  * @led_cdev: the LED to get default pattern for
291  * Return:    Allocated array of integers with default pattern from device tree
297  * led_sysfs_disable - disable LED sysfs interface
305  * led_sysfs_enable - enable LED sysfs interface
313  * led_compose_name - compose LED class device name
328  * led_sysfs_is_disabled - check if LED sysfs interface is disabled
335 	return led_cdev->flags & LED_SYSFS_DISABLE;  in led_sysfs_is_disabled()
355 	/* LED-private triggers have this set */
400 	led_cdev->trigger_data = trigger_data;  in led_set_trigger_data()
405 	return led_cdev->trigger_data;  in led_get_trigger_data()
409  * led_trigger_rename_static - rename a trigger
485  * Generic LED platform data for describing LED names and default triggers.
512 /* For the leds-gpio driver */
568 	struct led_classdev *led_cdev, enum led_brightness brightness);
571 	struct led_classdev *led_cdev, enum led_brightness brightness) { }  in led_classdev_notify_brightness_hw_changed()  argument
575  * struct led_pattern - pattern interval settings
577  * @brightness: pattern interval brightness
581 	int brightness;  member