cyber: initial releasev42.1337

1 files changed, 53 insertions, 0 deletions

diff --git a/src/cyber_device_character_device.c b/src/cyber_device_character_device.c
new file mode 100644
index 0000000..f99e97e
--- /dev/null
+++ b/src/cyber_device_character_device.c
@@ -0,0 +1,53 @@
+/*
+ * cyber - Add CYBER to your system
+ * Copyright (C) 2017 Felix Morgner
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cyber.h"
+#include "cyber_device.h"
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+extern struct cyber_device device;
+extern struct file_operations const cyber_operations;
+
+int cyber_device_init_character_device(void)
+{
+	int error = 0;
+
+	if((error = alloc_chrdev_region(&device.number, 0, 1, DEV_NAME)))
+	{
+		printk(KERN_ALERT DEV_NAME ": Failed to allocate character device!\n");
+	}
+
+	cdev_init(&device.character, &cyber_operations);
+	device.character.owner = THIS_MODULE;
+	device.character.ops = &cyber_operations;
+
+	if((error = cdev_add(&device.character, device.number, 1)))
+	{
+		printk(KERN_ALERT DEV_NAME ": Failed to add character device (Error: %d)!\n", error);
+	}
+
+	return error;
+}
+
+void cyber_device_shutdown_character_device(void)
+{
+	cdev_del(&device.character);
+	unregister_chrdev_region(device.number, 1);
+}