diff options
Diffstat (limited to 'pingid.c')
-rw-r--r-- | pingid.c | 19 |
1 files changed, 14 insertions, 5 deletions
@@ -6,6 +6,14 @@ #include <sys/types.h> #include <linux/input.h> +#ifndef GPIO +#define GPIO 4 +#endif + +#define STRINGIFY(a) #a +#define STRINGIFY_HARDER(a) STRINGIFY(a) +#define GPIO_STR STRINGIFY_HARDER(GPIO) + char *names[KEY_MAX + 1] = { "", "", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "-", "=", "", @@ -132,16 +140,17 @@ main (int argc, char *argv[]) struct timeval tv; char ret[128]; - squirt ("/sys/class/gpio/export", "4"); - squirt ("/sys/class/gpio/gpio4/direction", "out"); - squirt ("/sys/class/gpio/gpio4/value", "0"); + + squirt ("/sys/class/gpio/export", GPIO_STR); + squirt ("/sys/class/gpio/gpio" GPIO_STR "/direction", "out"); + squirt ("/sys/class/gpio/gpio" GPIO_STR "/value", "0"); tv.tv_sec = 0; tv.tv_usec = 100; get_string_with_timeout (fd, &tv, NULL, 0); - squirt ("/sys/class/gpio/gpio4/value", "1"); + squirt ("/sys/class/gpio/gpio" GPIO_STR "/value", "1"); tv.tv_sec = 2; @@ -149,7 +158,7 @@ main (int argc, char *argv[]) get_string_with_timeout (fd, &tv, ret, sizeof (ret)); - squirt ("/sys/class/gpio/gpio4/value", "0"); + squirt ("/sys/class/gpio/gpio" GPIO_STR "/value", "0"); printf ("Access-Control-Allow-Origin: *\n"); printf ("Content-Type: text/plain\n\n%s\n", ret); |