mirror of https://github.com/merbanan/rtl_433.git
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/** @file
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Trigger output for rtl_433 events.
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Copyright (C) 2021 Christian Zuckschwerdt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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*/
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#ifndef INCLUDE_OUTPUT_TRIGGER_H_
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#define INCLUDE_OUTPUT_TRIGGER_H_
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#include "data.h"
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#include <stdio.h>
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/// Construct data output for a trigger stream.
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///
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/// This will print a `1` to the stream for every event.
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///
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/// Use e.g. on a Raspberry Pi to flash the LED:
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///
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/// $ sudo chmod a+w /sys/class/leds/led0/shot
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/// $ echo oneshot | sudo tee /sys/class/leds/led0/trigger
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/// $ rtl_433 ... -F trigger:/sys/class/leds/led0/shot
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///
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/// @param file a trigger output stream
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/// @return The initialized data output.
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/// You must release this object with data_output_free once you're done with it.
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struct data_output *data_output_trigger_create(FILE *file);
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#endif /* INCLUDE_OUTPUT_TRIGGER_H_ */
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