| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | bt819.h - bt819 notifications |
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| 4 | |
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| 5 | Copyright (C) 2009 Hans Verkuil (hverkuil@xs4all.nl) |
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| 6 | |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef _BT819_H_ |
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| 10 | #define _BT819_H_ |
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| 11 | |
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| 12 | #include <linux/ioctl.h> |
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| 13 | |
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| 14 | /* v4l2_device notifications. */ |
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| 15 | |
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| 16 | /* Needed to reset the FIFO buffer when changing the input |
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| 17 | or the video standard. |
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| 18 | |
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| 19 | Note: these ioctls that internal to the kernel and are never called |
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| 20 | from userspace. */ |
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| 21 | #define BT819_FIFO_RESET_LOW _IO('b', 0) |
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| 22 | #define BT819_FIFO_RESET_HIGH _IO('b', 1) |
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| 23 | |
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| 24 | #endif |
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| 25 | |
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