upm/examples/c/button.c
Mihai Tudor Panu 89d5de43e0 license: update to SPDX style license text throughout
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
2020-03-05 15:13:36 -08:00

47 lines
899 B
C

/*
* Authors: Abhishek Malik <abhishek.malik@intel.com>
* Copyright (c) 2016 Intel Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the The MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "button.h"
#include "upm_utilities.h"
#include "mraa.h"
int counter;
void button_isr(void *arg){
counter++;
}
int main()
{
counter = 0;
if (mraa_init() != MRAA_SUCCESS)
{
perror("Failed to initialize mraa\n");
return -1;
}
button_context dev = button_init(2);
button_install_isr(dev, MRAA_GPIO_EDGE_RISING, button_isr, NULL);
while(1){
printf("Interrupts: %d\n", counter);
upm_delay(3);
}
return 0;
}