On Thu March 14 2013 15:07:00 Jon Arne Jørgensen wrote:
> This file is responsible for registering the device with the v4l2 subsystem,
> and the communication with v4l2.
> Most of the v4l2 ioctls are just passed on to vidbuf2.
>
> Signed-off-by: Jon Arne Jørgensen <jonarne@xxxxxxxxxx>
> ---
> drivers/media/usb/smi2021/smi2021_v4l2.c | 566 +++++++++++++++++++++++++++++++
> 1 file changed, 566 insertions(+)
> create mode 100644 drivers/media/usb/smi2021/smi2021_v4l2.c
>
> diff --git a/drivers/media/usb/smi2021/smi2021_v4l2.c b/drivers/media/usb/smi2021/smi2021_v4l2.c
> new file mode 100644
> index 0000000..d402093
> --- /dev/null
> +++ b/drivers/media/usb/smi2021/smi2021_v4l2.c
> @@ -0,0 +1,566 @@
...
> +int smi2021_vb2_setup(struct smi2021_dev *dev)
> +{
> + int rc;
> + struct vb2_queue *q;
> +
> + q = &dev->vb_vidq;
> + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
> + q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
> + q->drv_priv = dev;
> + q->buf_struct_size = sizeof(struct smi2021_buffer);
> + q->ops = &smi2021_video_qops;
> + q->mem_ops = &vb2_vmalloc_memops;
q->timestamp_type isn't filled in.
For that matter, neither the sequence number nor the timestamp are filled in
in v4l2_buffer during capturing.
You need to add a buf_finish op to fill those in (use v4l2_timestamp() for the
timestamp).
Regards,
Hans
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