From 8e013700bc12806d80f31ebe360916987f0e03df Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 1 Jun 2018 11:03:13 -0400 Subject: media: vb2: add init_buffer buffer op We need to initialize the request_fd field in struct vb2_v4l2_buffer to -1 instead of the default of 0. So we need to add a new op that is called when struct vb2_v4l2_buffer is allocated. Signed-off-by: Hans Verkuil Reviewed-by: Mauro Carvalho Chehab Signed-off-by: Mauro Carvalho Chehab --- include/media/videobuf2-core.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/media') diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 15a14b1e5c0b..2eb24961183e 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -412,6 +412,9 @@ struct vb2_ops { * @verify_planes_array: Verify that a given user space structure contains * enough planes for the buffer. This is called * for each dequeued buffer. + * @init_buffer: given a &vb2_buffer initialize the extra data after + * struct vb2_buffer. + * For V4L2 this is a &struct vb2_v4l2_buffer. * @fill_user_buffer: given a &vb2_buffer fill in the userspace structure. * For V4L2 this is a &struct v4l2_buffer. * @fill_vb2_buffer: given a userspace structure, fill in the &vb2_buffer. @@ -422,6 +425,7 @@ struct vb2_ops { */ struct vb2_buf_ops { int (*verify_planes_array)(struct vb2_buffer *vb, const void *pb); + void (*init_buffer)(struct vb2_buffer *vb); void (*fill_user_buffer)(struct vb2_buffer *vb, void *pb); int (*fill_vb2_buffer)(struct vb2_buffer *vb, struct vb2_plane *planes); void (*copy_timestamp)(struct vb2_buffer *vb, const void *pb); -- cgit v1.2.1