2 * Author: Brendan Le Foll <brendan.le.foll@intel.com>
3 * Copyright (c) 2014 Intel Corporation.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 #define DEFAULT_IOPIN 8
39 sig_handler(int signo)
41 if (signo == SIGINT) {
42 printf("closing IO%d nicely\n", iopin);
48 main(int argc, char** argv)
50 mraa_result_t r = MRAA_SUCCESS;
51 iopin = DEFAULT_IOPIN;
54 printf("Provide an int arg if you want to flash on something other than %d\n", DEFAULT_IOPIN);
56 iopin = strtol(argv[1], NULL, 10);
60 fprintf(stdout, "MRAA Version: %s\nStarting Blinking on IO%d\n", mraa_get_version(), iopin);
62 mraa_gpio_context gpio;
63 gpio = mraa_gpio_init(iopin);
65 fprintf(stderr, "Are you sure that pin%d you requested is valid on your platform?", iopin);
68 printf("Initialised pin%d\n", iopin);
70 // set direction to OUT
71 r = mraa_gpio_dir(gpio, MRAA_GPIO_OUT);
72 if (r != MRAA_SUCCESS) {
76 signal(SIGINT, sig_handler);
78 while (running == 0) {
79 r = mraa_gpio_write(gpio, 0);
80 if (r != MRAA_SUCCESS) {
88 r = mraa_gpio_write(gpio, 1);
89 if (r != MRAA_SUCCESS) {
98 r = mraa_gpio_close(gpio);
99 if (r != MRAA_SUCCESS) {
100 mraa_result_print(r);