INT_MODULE_PARM(sepDebug, 0x0);
MODULE_PARM_DESC(sepDebug, "Flag to enable SEP debug messages");
-/* major and minor device numbers */
-static dev_t g_sep_device_number;
-
-/* the files operations structure of the driver */
-static struct file_operations g_sep_fops;
-
-/* cdev struct of the driver */
-static struct cdev g_sep_cdev;
/*
mutex for the access to the internals of the sep driver
}
+/* major and minor device numbers */
+static dev_t sep_devno;
+
+/* the files operations structure of the driver */
+static struct file_operations sep_file_operations = {
+ .owner = THIS_MODULE,
+ .ioctl = sep_ioctl,
+ .poll = sep_poll,
+ .open = sep_open,
+ .release = sep_release,
+ .mmap = sep_mmap,
+};
+
+
+/* cdev struct of the driver */
+static struct cdev sep_cdev;
+
/*
this function registers the driver to the file system
*/
static int sep_register_driver_to_fs(void)
{
- int ret_val = alloc_chrdev_region(&g_sep_device_number, 0, 1, "sep_sec_driver");
+ int ret_val = alloc_chrdev_region(&sep_devno, 0, 1, "sep_sec_driver");
if (ret_val) {
edbg("sep_driver:major number allocation failed, retval is %d\n", ret_val);
goto end_function;
}
- /* set the files operations structure */
- g_sep_fops.owner = THIS_MODULE;
- g_sep_fops.ioctl = sep_ioctl;
- g_sep_fops.poll = sep_poll;
- g_sep_fops.open = sep_open;
- g_sep_fops.release = sep_release;
- g_sep_fops.mmap = sep_mmap;
-
/* init cdev */
- cdev_init(&g_sep_cdev, &g_sep_fops);
- g_sep_cdev.owner = THIS_MODULE;
+ cdev_init(&sep_cdev, &sep_file_operations);
+ sep_cdev.owner = THIS_MODULE;
/* register the driver with the kernel */
- ret_val = cdev_add(&g_sep_cdev, g_sep_device_number, 1);
+ ret_val = cdev_add(&sep_cdev, sep_devno, 1);
if (ret_val) {
edbg("sep_driver:cdev_add failed, retval is %d\n", ret_val);
end_function_unregister_devnum:
/* unregister dev numbers */
- unregister_chrdev_region(g_sep_device_number, 1);
+ unregister_chrdev_region(sep_devno, 1);
end_function:
return ret_val;
*/
static void sep_unregister_driver_from_fs(void)
{
- cdev_del(&g_sep_cdev);
+ cdev_del(&sep_cdev);
/* unregister dev numbers */
- unregister_chrdev_region(g_sep_device_number, 1);
+ unregister_chrdev_region(sep_devno, 1);
}