diff --git a/main.c b/main.c index 327f61e..6a09b71 100644 --- a/main.c +++ b/main.c @@ -1,7 +1,40 @@ #include +#include +#include int main(int argc, char *argv[]) { + int fd; + // EXPORT + fd = open("/sys/class/gpio/chip0/export", O_WRONLY); + write(fd, "17", 2); + close(fd); + // DIRECTION + fd = open("/sys/class/gpio/chip0/gpio17/direction", O_WRONLY); + write(fd, "out",3); + close(fd); + // VALUE + fd = open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY); + write(fd, "1", 1); + close(fd); + sleep(1); + // Unexport + fd = open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY); + write(fd, "0", 1); + close(fd); + sleep(1); + + + fd = open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY); + write(fd, "1", 1); + close(fd); + sleep(1); + + fd = open("/sys/class/gpio/chip0/gpio17/unexport", O_WRONLY); + write(fd, "17", 2); + close(fd); + + printf("Number of arguments: %d\n", argc); printf("Program is reciving: %s\n", argv[0]);