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diff --git a/kernel/include/uapi/linux/ivtv.h b/kernel/include/uapi/linux/ivtv.h
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+/*
+ Public ivtv API header
+ Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
+ Copyright (C) 2004-2007 Hans Verkuil <hverkuil@xs4all.nl>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __LINUX_IVTV_H__
+#define __LINUX_IVTV_H__
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+/* ivtv knows several distinct output modes: MPEG streaming,
+ YUV streaming, YUV updates through user DMA and the passthrough
+ mode.
+
+ In order to clearly tell the driver that we are in user DMA
+ YUV mode you need to call IVTV_IOC_DMA_FRAME with y_source == NULL
+ first (althrough if you don't then the first time
+ DMA_FRAME is called the mode switch is done automatically).
+
+ When you close the file handle the user DMA mode is exited again.
+
+ While in one mode, you cannot use another mode (EBUSY is returned).
+
+ All this means that if you want to change the YUV interlacing
+ for the user DMA YUV mode you first need to do call IVTV_IOC_DMA_FRAME
+ with y_source == NULL before you can set the correct format using
+ VIDIOC_S_FMT.
+
+ Eventually all this should be replaced with a proper V4L2 API,
+ but for now we have to do it this way. */
+
+struct ivtv_dma_frame {
+ enum v4l2_buf_type type; /* V4L2_BUF_TYPE_VIDEO_OUTPUT */
+ __u32 pixelformat; /* 0 == same as destination */
+ void __user *y_source; /* if NULL and type == V4L2_BUF_TYPE_VIDEO_OUTPUT,
+ then just switch to user DMA YUV output mode */
+ void __user *uv_source; /* Unused for RGB pixelformats */
+ struct v4l2_rect src;
+ struct v4l2_rect dst;
+ __u32 src_width;
+ __u32 src_height;
+};
+
+#define IVTV_IOC_DMA_FRAME _IOW ('V', BASE_VIDIOC_PRIVATE+0, struct ivtv_dma_frame)
+
+/* Select the passthrough mode (if the argument is non-zero). In the passthrough
+ mode the output of the encoder is passed immediately into the decoder. */
+#define IVTV_IOC_PASSTHROUGH_MODE _IOW ('V', BASE_VIDIOC_PRIVATE+1, int)
+
+/* Deprecated defines: applications should use the defines from videodev2.h */
+#define IVTV_SLICED_TYPE_TELETEXT_B V4L2_MPEG_VBI_IVTV_TELETEXT_B
+#define IVTV_SLICED_TYPE_CAPTION_525 V4L2_MPEG_VBI_IVTV_CAPTION_525
+#define IVTV_SLICED_TYPE_WSS_625 V4L2_MPEG_VBI_IVTV_WSS_625
+#define IVTV_SLICED_TYPE_VPS V4L2_MPEG_VBI_IVTV_VPS
+
+#endif /* _LINUX_IVTV_H */