diff --git a/motion_app.c b/motion_app.c new file mode 100644 index 0000000000000000000000000000000000000000..b42c58e2c80bc4c59973c04e357e90f079e1338d --- /dev/null +++ b/motion_app.c @@ -0,0 +1,51 @@ +#include <stdio.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdlib.h> + +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/ioctl.h> +#include <sys/sysmacros.h> + + +#define MOTION_MAJOR_NUMBER 500 +#define MOTION_MINOR_NUMBER 100 +#define MOTION_DEV_PATH_NAME "/dev/motion_ioctl" + +#define IOCTL_MAGIC_NUMBER 'm' +#define IOCTL_CMD_MOTION_ON _IO(IOCTL_MAGIC_NUMBER, 0) +#define IOCTL_CMD_MOTION_OFF _IO(IOCTL_MAGIC_NUMBER, 1) + +int main(void) { + dev_t motion_dev; + int fd; + motion_dev = makedev(MOTION_MAJOR_NUMBER, MOTION_MINOR_NUMBER); + mknod(MOTION_DEV_PATH_NAME, S_IFCHR | 0666, motion_dev); + + + fd = open(MOTION_DEV_PATH_NAME, O_RDWR); + + if (fd < 0) { + printf("fail to open motion\n"); + return -1; + } + + int i = 0; + + while (i < 100) { + if (ioctl(fd, IOCTL_CMD_MOTION_ON, 0) == 1) { + printf("HIGH\n"); + sleep(1); + i++; + } + else + printf("LOW\n"); + sleep(1); + i++; + } + + close(fd); + return 0; +}