leds/trigger/ledtrig-oneshot.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * One-shot LED Trigger
7  * Based on ledtrig-timer.c by Richard Purdie <rpurdie@openedhand.com>
32 			&led_cdev->blink_delay_on, &led_cdev->blink_delay_off,  in led_shot()
33 			oneshot_data->invert);  in led_shot()
43 	return sprintf(buf, "%u\n", oneshot_data->invert);  in led_invert_show()
58 	oneshot_data->invert = !!state;  in led_invert_store()
60 	if (oneshot_data->invert)  in led_invert_store()
73 	return sprintf(buf, "%lu\n", led_cdev->blink_delay_on);  in led_delay_on_show()
87 	led_cdev->blink_delay_on = state;  in led_delay_on_store()
97 	return sprintf(buf, "%lu\n", led_cdev->blink_delay_off);  in led_delay_off_show()
111 	led_cdev->blink_delay_off = state;  in led_delay_off_store()
119 static DEVICE_ATTR(shot, 0200, NULL, led_shot);
140 		dev_warn(led_cdev->dev,  in pattern_init()
146 	led_cdev->blink_delay_on = pattern[0];  in pattern_init()
147 	led_cdev->blink_delay_off = pattern[1];  in pattern_init()
154 	led_cdev->blink_delay_on = DEFAULT_DELAY;  in pattern_init()
155 	led_cdev->blink_delay_off = DEFAULT_DELAY;  in pattern_init()
164 		return -ENOMEM;  in oneshot_trig_activate()
168 	if (led_cdev->flags & LED_INIT_DEFAULT_TRIGGER) {  in oneshot_trig_activate()
174 		led_cdev->flags &= ~LED_INIT_DEFAULT_TRIGGER;  in oneshot_trig_activate()
199 MODULE_DESCRIPTION("One-shot LED trigger");