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53 lines
1.2 KiB
53 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Camera Flash and Torch On/Off Trigger |
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* |
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* based on ledtrig-ide-disk.c |
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* |
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* Copyright 2013 Texas Instruments |
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* |
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* Author: Milo(Woogyom) Kim <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/leds.h> |
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DEFINE_LED_TRIGGER(ledtrig_flash); |
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DEFINE_LED_TRIGGER(ledtrig_torch); |
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void ledtrig_flash_ctrl(bool on) |
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{ |
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enum led_brightness brt = on ? LED_FULL : LED_OFF; |
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led_trigger_event(ledtrig_flash, brt); |
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} |
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EXPORT_SYMBOL_GPL(ledtrig_flash_ctrl); |
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void ledtrig_torch_ctrl(bool on) |
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{ |
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enum led_brightness brt = on ? LED_FULL : LED_OFF; |
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led_trigger_event(ledtrig_torch, brt); |
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} |
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EXPORT_SYMBOL_GPL(ledtrig_torch_ctrl); |
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static int __init ledtrig_camera_init(void) |
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{ |
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led_trigger_register_simple("flash", &ledtrig_flash); |
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led_trigger_register_simple("torch", &ledtrig_torch); |
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return 0; |
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} |
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module_init(ledtrig_camera_init); |
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static void __exit ledtrig_camera_exit(void) |
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{ |
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led_trigger_unregister_simple(ledtrig_torch); |
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led_trigger_unregister_simple(ledtrig_flash); |
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} |
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module_exit(ledtrig_camera_exit); |
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MODULE_DESCRIPTION("LED Trigger for Camera Flash/Torch Control"); |
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MODULE_AUTHOR("Milo Kim"); |
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MODULE_LICENSE("GPL v2");
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