From 5c77879ff9ab9e7dd5b4a78666a09af1a8854be9 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Wed, 5 Sep 2012 05:33:21 -0300
Subject: [PATCH] [media] v4l2-dev: add new VFL_DIR_ defines

These will be used by v4l2-dev.c to improve ioctl checking.
I.e. ioctls for capture should return -ENOTTY when called for
an output device.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 include/media/v4l2-dev.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 6ee8897c47e9..95d1c91770f4 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -26,6 +26,12 @@
 #define VFL_TYPE_SUBDEV		3
 #define VFL_TYPE_MAX		4
 
+/* Is this a receiver, transmitter or mem-to-mem? */
+/* Ignored for VFL_TYPE_SUBDEV. */
+#define VFL_DIR_RX		0
+#define VFL_DIR_TX		1
+#define VFL_DIR_M2M		2
+
 struct v4l2_ioctl_callbacks;
 struct video_device;
 struct v4l2_device;
@@ -105,7 +111,8 @@ struct video_device
 
 	/* device info */
 	char name[32];
-	int vfl_type;
+	int vfl_type;	/* device type */
+	int vfl_dir;	/* receiver, transmitter or m2m */
 	/* 'minor' is set to -1 if the registration failed */
 	int minor;
 	u16 num;
-- 
2.34.1