[RFC 08/22] videodev2.h: Add request field to v4l2_pix_format_mplane

Sakari Ailus
2016-05-06T10:56:40Z

From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Let userspace specify a request ID when getting or setting formats. The
support is limited to the multi-planar API at the moment, extending it
to the single-planar API is possible if needed.

>From a userspace point of view the API change is also minimized and
doesn't require any new ioctl.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
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 ac28299..6260d0e 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1972,6 +1972,7 @@ struct v4l2_plane_pix_format {
* @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
* @quantization: enum v4l2_quantization, colorspace quantization
* @xfer_func: enum v4l2_xfer_func, colorspace transfer function
+ * @request: request ID
*/
struct v4l2_pix_format_mplane {
__u32 width;
@@ -1986,7 +1987,8 @@ struct v4l2_pix_format_mplane {
__u8 ycbcr_enc;
__u8 quantization;
__u8 xfer_func;
- __u8 reserved[7];
+ __u8 reserved[3];
+ __u32 request;
} __attribute__ ((packed));

/**
--
1.9.1