Add buffer size field to struct v4l2_sdr_format. It is used for
negotiate streaming buffer size between application and driver.

Cc: Hans Verkuil <hverk...@xs4all.nl>
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
 include/uapi/linux/videodev2.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 25ab057..0dd5ffb 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1724,10 +1724,12 @@ struct v4l2_pix_format_mplane {
 /**
  * struct v4l2_sdr_format - SDR format definition
  * @pixelformat:       little endian four character code (fourcc)
+ * @buffersize:                maximum size in bytes required for data
  */
 struct v4l2_sdr_format {
        __u32                           pixelformat;
-       __u8                            reserved[28];
+       __u32                           buffersize;
+       __u8                            reserved[24];
 } __attribute__ ((packed));
 
 /**
-- 
1.9.3

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