Set the v4l2_buffer::length field when queueing a buffer

Userspace buffers size needs to be passed to drivers on VIDIOC_QBUF. Set
the v4l2_buffer::length field to the size of the allocated buffer before
calling VIDIOC_QBUF.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/yavta.c b/yavta.c
index 63d96e3..ae29bbe 100644
--- a/yavta.c
+++ b/yavta.c
@@ -385,6 +385,7 @@ static int video_queue_buffer(struct device *dev, int index)
 	buf.index = index;
 	buf.type = dev->type;
 	buf.memory = dev->memtype;
+	buf.length = dev->bufsize;
 	if (dev->memtype == V4L2_MEMORY_USERPTR)
 		buf.m.userptr = (unsigned long)dev->mem[index];