Ioctl

ioctl_chardev/test.c

@@ -0,0 +1,40 @@
+#include <stdio.h>
+// #include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <linux/ioctl.h>
+#include <sys/ioctl.h>
+#include "my-ioctl.h"
+
+int main(int argc, char **argv)
+{
+	int fd;
+
+	if (argc < 2) {
+		printf("I need the file to open as an argument!\n");
+		return 0;
+	}
+
+	fd = open(argv[1], O_RDWR);
+	if (fd < 0) {
+		perror("open");
+		return 1;
+	}
+
+	if (ioctl(fd, MY_IOCTL_FILL)) {
+		perror("ioctl");
+		close(fd);
+		return 1;
+	}
+
+	if (ioctl(fd, MY_IOCTL_WIPE)) {
+		perror("ioctl");
+		close(fd);
+		return 1;
+	}
+
+	printf("ioctl successful\n");
+
+	close(fd);
+	return 0;
+}