On 6/19/22 02:33, Laurent Pinchart wrote:
On Sun, Jun 19, 2022 at 02:28:55AM +0200, Marek Vasut wrote:
On 6/19/22 01:20, Laurent Pinchart wrote:
Hi Marek,
Thank you for the patch.
On Sun, Jun 19, 2022 at 12:23:35AM +0200, Marek Vasut wrote:
Unless the V4L2 device calls v4l2_device_register_subdev_nodes(),
the /dev/v4l-subdev* sub-device nodes are not registered and thus
not created. Add the missing call.
This driver configures the subdevs internally. Exposing the subdev nodes
to userspace would conflict with driver operation.
If you need the subdev nodes only to query subdev information, you can
use v4l2_device_register_ro_subdev_nodes(). Ideally I'd prefer this
driver to expose subdev nodes to userspace and stop propagating formats
internally, but that may break applications :-(
I need those subdevs to configure e.g. test pattern on the sensor side.
Doesn't the dcmi driver expose the sensor controls on the video node ?
Apparently it does, so, discard this patch.
