Re: Nitrogen6x w/ OV5642

[Eric Nelson <eric.nelson@boundarydevices.com>]

Hi Sébastien,

On 05/22/2013 01:57 PM, Sébastien Taylor wrote:
> I am having issues interfacing the OV5642 sensor with the Nitrogen6x board using the fsl-community-bsp.
>
> On bootup I see that the OV5642 driver is installed, but doing a modprobe mxc_v4l2_capture gives me a no slaves found error.
>
> Module                  Size  Used by
> wl12xx_sdio             3523  0
> ov5642_camera          74186  0
> camera_sensor_clock      721  1 ov5642_camera
>
> root@nitrogen6x:~# modprobe mxc_v4l2_capture
> root@nitrogen6x:~# ERROR: v4l2 capture: slave not found!
>

I've confirmed this as well. It used to work, and I'll try to piece
together what happened...

Oh. Never mind.

For me at least, the error messages about missing slaves are
meaningless, and the mxc_v4l2_capture module continues
to load:

	root@nitrogen6x:~# lsmod
	Module                  Size  Used by
	mxc_v4l2_capture       21077  1
	ipu_bg_overlay_sdc      3929  1 mxc_v4l2_capture
	ipu_still               1707  1 mxc_v4l2_capture
	ipu_prp_enc             4685  1 mxc_v4l2_capture
	ipu_csi_enc             2941  1 mxc_v4l2_capture
	ipu_fg_overlay_sdc      4760  1 mxc_v4l2_capture
	ov5642_camera          74186  0
	camera_sensor_clock      721  1 ov5642_camera
	vivante                  943  1
	drm                   140600  2 vivante

I can also verify camera preview using the trivial
gst-launch command:

	root@nitrogen6x:~# gst-launch mfw_v4lsrc ! mfw_v4lsink

Which branch are you using?

Please advise,


Eric