From 937ba8f2a0dc3b8cdb98de9a48c256ad24427ac9 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Fri, 29 Aug 2008 22:31:35 +0200
Subject: v4l2: use register_chrdev_region instead of register_chrdev

From: Hans Verkuil <hverkuil@xs4all.nl>

Replace the old register_chrdev with the more flexible register_chrdev_region.

Ensure that the release() is called when the very last chardev usage was
released, and not when the sysfs devices were removed. This should simplify
hotpluggable drivers considerably.


Tested-by: Mike Isely <isely@isely.net>
Tested-by: Laurent Pinchart <laurent.pinchart@skynet.be>

Priority: normal

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: David Ellingsworth <david@identd.dyndns.org>
Reviewed-by: Hans de Goede <j.w.r.degoede@hhs.nl>
---
 linux/include/media/v4l2-dev.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'linux/include')

diff --git a/linux/include/media/v4l2-dev.h b/linux/include/media/v4l2-dev.h
index ba05b8164..9158ad8b5 100644
--- a/linux/include/media/v4l2-dev.h
+++ b/linux/include/media/v4l2-dev.h
@@ -12,6 +12,7 @@
 #include <linux/poll.h>
 #include <linux/fs.h>
 #include <linux/device.h>
+#include <linux/cdev.h>
 #include <linux/mutex.h>
 #include <linux/videodev2.h>
 
@@ -51,6 +52,8 @@ struct video_device
 #else
 	struct class_device dev;
 #endif
+	struct cdev cdev;		/* character device */
+	void (*cdev_release)(struct kobject *kobj);
 	struct device *parent;		/* device parent */
 
 	/* device info */
-- 
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