uti: Add/Modify test programs

Change-Id: I27a39d6b11af5243f93d07c31c2ef80f6727dd53

test/uti/driver/driver.c

@@ -0,0 +1,80 @@
+/*
+ * This file is created by mixing the following two codes.
+ *
+ * URL: https://www.apriorit.com/dev-blog/195-simple-driver-for-linux-os
+ * Author: Danil Ishkov, Apriorit
+ *
+ * URL: http://www.linuxdevcenter.com/pub/a/linux/2007/07/05/devhelloworld-a-simple-introduction-to-device-drivers-under-linux.html
+ * Author: Valerie Henson <val@nmt.edu>
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <asm/uaccess.h>
+#include <asm/errno.h>
+#include <linux/init.h>
+
+static int hello_open(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+static int hello_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+static long hello_ioctl(struct file *file, unsigned int request, unsigned long arg)
+{
+	return 0;
+}
+
+static struct file_operations fops = {
+	.open = hello_open,
+	.release = hello_release,
+	.unlocked_ioctl = hello_ioctl,
+};
+
+static int device_file_major_number = 0;
+static const char device_name[] = "hello";
+static int register_device(void)
+{
+	int result = 0;
+	result = register_chrdev( 0, device_name, &fops );
+	if( result < 0 ) {
+            printk( KERN_WARNING "hello: register_chrdev failed,result=%i", result );
+            return result;
+	}
+	device_file_major_number = result;
+	printk( KERN_NOTICE "hello: major number=%i,try \"grep hello /proc/devices\"", device_file_major_number );
+	return 0;
+}
+
+void unregister_device(void)
+{
+    printk( KERN_NOTICE "hello: unregister_device() is called" );
+    if(device_file_major_number != 0) {
+		unregister_chrdev(device_file_major_number, device_name);
+	}
+}
+
+static int __init hello_init(void)
+{
+	register_device();
+	return 0;
+}
+
+module_init(hello_init);
+
+static void __exit hello_exit(void)
+{
+	unregister_device();
+}
+
+module_exit(hello_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR(" Danil Ishkov, Apriorit and Valerie Henson");
+MODULE_DESCRIPTION("Module that does nothing");
+MODULE_VERSION("1.0");