Instead of filling in the struct v4l2_capability device_caps field, fill in the struct video_device device_caps field. That way the V4L2 core knows what the capabilities of the video device are. Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> --- Hi Andrey, I noticed this new staging V4L2 driver. FYI, please CC any future patches to this driver to the linux-media@xxxxxxxxxxxxxxx mailinglist as well so we can review it. I'll post a review of this driver later today as well. In the meantime, I'd like to get this patch in since during the upcoming 5.4 cycle we will require that the device_caps field of struct video_device is set correctly. Regards, Hans Changes since v1: - drop V4L2_CAP_TUNER since this device has no tuner. --- diff --git a/drivers/staging/most/video/video.c b/drivers/staging/most/video/video.c index adca250062e1..7d12ab6c60a1 100644 --- a/drivers/staging/most/video/video.c +++ b/drivers/staging/most/video/video.c @@ -250,11 +250,6 @@ static int vidioc_querycap(struct file *file, void *priv, strlcpy(cap->card, "MOST", sizeof(cap->card)); snprintf(cap->bus_info, sizeof(cap->bus_info), "%s", mdev->iface->description); - - cap->capabilities = - V4L2_CAP_READWRITE | - V4L2_CAP_TUNER | - V4L2_CAP_VIDEO_CAPTURE; return 0; } @@ -366,6 +361,7 @@ static const struct video_device comp_videodev_template = { .release = video_device_release, .ioctl_ops = &video_ioctl_ops, .tvnorms = V4L2_STD_UNKNOWN, + .device_caps = V4L2_CAP_READWRITE | V4L2_CAP_VIDEO_CAPTURE, }; /**************************************************************************/