1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
// SPDX-License-Identifier: GPL-2.0
//
// Audio Mute LED trigger
//
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/module.h>
static struct led_trigger *ledtrig_audio[NUM_AUDIO_LEDS];
static enum led_brightness audio_state[NUM_AUDIO_LEDS];
enum led_brightness ledtrig_audio_get(enum led_audio type)
{
return audio_state[type];
}
EXPORT_SYMBOL_GPL(ledtrig_audio_get);
void ledtrig_audio_set(enum led_audio type, enum led_brightness state)
{
audio_state[type] = state;
led_trigger_event(ledtrig_audio[type], state);
}
EXPORT_SYMBOL_GPL(ledtrig_audio_set);
static int __init ledtrig_audio_init(void)
{
led_trigger_register_simple("audio-mute",
&ledtrig_audio[LED_AUDIO_MUTE]);
led_trigger_register_simple("audio-micmute",
&ledtrig_audio[LED_AUDIO_MICMUTE]);
return 0;
}
module_init(ledtrig_audio_init);
static void __exit ledtrig_audio_exit(void)
{
led_trigger_unregister_simple(ledtrig_audio[LED_AUDIO_MUTE]);
led_trigger_unregister_simple(ledtrig_audio[LED_AUDIO_MICMUTE]);
}
module_exit(ledtrig_audio_exit);
MODULE_DESCRIPTION("LED trigger for audio mute control");
MODULE_LICENSE("GPL v2");
|
