mcctrl inital version (to be destroyed)

linux/mod_mcctrl/driver.c

@@ -0,0 +1,73 @@
+/*
+ *
+ */
+
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/slab.h>
+#include "mcctrl.h"
+
+extern long __mcctrl_control(struct mcctrl_priv *, unsigned int, unsigned long);
+
+static int mcctrl_open(struct inode *inode, struct file *file)
+{
+	struct mcctrl_priv *mcc_data;
+
+	mcc_data = kzalloc(sizeof(struct mcctrl_priv), GFP_KERNEL);
+	if (!mcc_data) {
+		return -ENOMEM;
+	}
+
+	file->private_data = mcc_data;
+	return 0;
+}
+
+static int mcctrl_release(struct inode *inode, struct file *file)
+{
+	struct mcctrl_priv *mcc_data = file->private_data;
+
+	if (mcc_data) {
+		if (mcc_data->desc) {
+			kfree(mcc_data->desc);
+		}
+		kfree(mcc_data);
+	}
+
+	return 0;
+}
+
+static long mcctrl_ioctl(struct file *file, unsigned int request,
+                         unsigned long arg)
+{
+	struct mcctrl_priv *mcc_data = file->private_data;
+
+	return __mcctrl_control(mcc_data, request, arg);
+}
+
+static struct file_operations mcctrl_ops = {
+	.open = mcctrl_open,
+	.unlocked_ioctl = mcctrl_ioctl,
+	.release = mcctrl_release,
+};
+
+static struct miscdevice mcctrl_dev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "mcctrl",
+	.fops = &mcctrl_ops,
+};
+
+static int __init mcctrl_init(void)
+{
+	return misc_register(&mcctrl_dev);
+}
+
+static void __exit mcctrl_exit(void)
+{
+	misc_deregister(&mcctrl_dev);
+}
+
+MODULE_LICENSE("GPL v2");
+module_init(mcctrl_init);
+module_exit(mcctrl_exit);