| 1 | |
| 2 | |
| 3 | * Camera Flash and Torch On/Off Trigger
|
| 4 | *
|
| 5 | * based on ledtrig-ide-disk.c
|
| 6 | *
|
| 7 | * Copyright 2013 Texas Instruments
|
| 8 | *
|
| 9 | * Author: Milo(Woogyom) Kim <[email protected]>
|
| 10 |
|
| 11 |
|
| 12 | #include <linux/module.h>
|
| 13 | #include <linux/kernel.h>
|
| 14 | #include <linux/init.h>
|
| 15 | #include <linux/leds.h>
|
| 16 |
|
| 17 | DEFINE_LED_TRIGGER(ledtrig_flash);
|
| 18 | DEFINE_LED_TRIGGER(ledtrig_torch);
|
| 19 |
|
| 20 | void ledtrig_flash_ctrl(bool on)
|
| 21 | {
|
| 22 | enum led_brightness brt = on ? LED_FULL : LED_OFF;
|
| 23 |
|
| 24 | led_trigger_event(ledtrig_flash, brt);
|
| 25 | }
|
| 26 | EXPORT_SYMBOL_GPL(ledtrig_flash_ctrl);
|
| 27 |
|
| 28 | void ledtrig_torch_ctrl(bool on)
|
| 29 | {
|
| 30 | enum led_brightness brt = on ? LED_FULL : LED_OFF;
|
| 31 |
|
| 32 | led_trigger_event(ledtrig_torch, brt);
|
| 33 | }
|
| 34 | EXPORT_SYMBOL_GPL(ledtrig_torch_ctrl);
|
| 35 |
|
| 36 | static int __init ledtrig_camera_init(void)
|
| 37 | {
|
| 38 | led_trigger_register_simple("flash", &ledtrig_flash);
|
| 39 | led_trigger_register_simple("torch", &ledtrig_torch);
|
| 40 | return 0;
|
| 41 | }
|
| 42 | module_init(ledtrig_camera_init);
|
| 43 |
|
| 44 | static void __exit ledtrig_camera_exit(void)
|
| 45 | {
|
| 46 | led_trigger_unregister_simple(ledtrig_torch);
|
| 47 | led_trigger_unregister_simple(ledtrig_flash);
|
| 48 | }
|
| 49 | module_exit(ledtrig_camera_exit);
|
| 50 |
|
| 51 | MODULE_DESCRIPTION("LED Trigger for Camera Flash/Torch Control");
|
| 52 | MODULE_AUTHOR("Milo Kim");
|
| 53 | MODULE_LICENSE("GPL v2");
|