summaryrefslogtreecommitdiff
path: root/peripheral/libmraa/examples/gpio_read6.c
blob: 550484bd84ba0a0b30c7b19f3db2f86078618368 (plain)
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
45
46
47
48
49
50
51
52
/*
 * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
 * Copyright (c) 2014 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "stdio.h"
#include "unistd.h"

#include "mraa.h"

int
main(int argc, char** argv)
{
    mraa_init();
    fprintf(stdout, "MRAA Version: %s\nStarting Read on IO6\n", mraa_get_version());

    //! [Interesting]
    mraa_gpio_context gpio;

    gpio = mraa_gpio_init(6);

    mraa_gpio_dir(gpio, MRAA_GPIO_IN);

    for (;;) {
        fprintf(stdout, "Gpio is %d\n", mraa_gpio_read(gpio));
        sleep(1);
    }

    mraa_gpio_close(gpio);
    //! [Interesting]

    return 0;
}