From 26d1d420808007b9d2fb2d883d35d7ea840045d9 Mon Sep 17 00:00:00 2001
From: Vincent Batts <vbatts@redhat.com>
Date: Thu, 2 Oct 2014 22:26:28 -0400
Subject: [PATCH] a simple tool to poke the new device

---
 helloctl/hellctl.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 helloctl/hellctl.c

diff --git a/helloctl/hellctl.c b/helloctl/hellctl.c
new file mode 100644
index 0000000..480c3d4
--- /dev/null
+++ b/helloctl/hellctl.c
@@ -0,0 +1,27 @@
+#include <stdio.h> 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <string.h>
+#include <unistd.h>
+
+#define HELLOCTL "/dev/helloctl"
+
+int main(int argc, char ** argv) {
+	int fd = -1;
+	fd = open(HELLOCTL, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Could not open %s\n", HELLOCTL);
+		_exit(1);
+	}
+
+	int ret;
+	if (ret = ioctl(fd, 1, 1) < 0) {
+		fprintf(stderr, "ioctl failed with: %s\n", strerror(ret));
+		goto done;
+	}
+done:
+	close(fd);
+}