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diff --git a/include/media/i2c/bt819.h b/include/media/i2c/bt819.h
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+++ b/include/media/i2c/bt819.h
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ bt819.h - bt819 notifications
+
+ Copyright (C) 2009 Hans Verkuil (hverkuil@xs4all.nl)
+
+*/
+
+#ifndef _BT819_H_
+#define _BT819_H_
+
+#include <linux/ioctl.h>
+
+/* v4l2_device notifications. */
+
+/* Needed to reset the FIFO buffer when changing the input
+ or the video standard.
+
+ Note: these ioctls that internal to the kernel and are never called
+ from userspace. */
+#define BT819_FIFO_RESET_LOW _IO('b', 0)
+#define BT819_FIFO_RESET_HIGH _IO('b', 1)
+
+#endif