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[PATCH/RFC,v2,29/56] videodev2.h: Add request field to v4l2_pix_format_mplane

Message ID 1453424245-18782-30-git-send-email-laurent.pinchart+renesas@ideasonboard.com (mailing list archive)
State RFC
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Laurent Pinchart Jan. 22, 2016, 12:56 a.m. UTC
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(-)
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diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 47c1b2733ecd..b776ff027f5a 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1977,6 +1977,7 @@  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;
@@ -1991,7 +1992,8 @@  struct v4l2_pix_format_mplane {
 	__u8				ycbcr_enc;
 	__u8				quantization;
 	__u8				xfer_func;
-	__u8				reserved[7];
+	__u8				reserved[3];
+	__u32				request;
 } __attribute__ ((packed));