lkml.org 
[lkml]   [2018]   [Oct]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: i.MX6 MIPI-CSI2 OV5640 Camera testing on Mainline Linux
On Mon, Oct 22, 2018 at 7:40 AM Fabio Estevam <festevam@gmail.com> wrote:
>
> Hi Adam,
>
> On Mon, Oct 22, 2018 at 9:37 AM Adam Ford <aford173@gmail.com> wrote:
>
> > Thank you! This tutorial web site is exactly what I need. The
> > documentation page in Linux touched on the media-ctl links, but it
> > didn't explain the syntax or the mapping. This graphical
> > interpretation really helps it make more sense.
>
> Is capturing working well on your i.MX6 board now?

Fabio,

Unfortunately, no. I built the rootfs based on Jagan's instructions
at https://openedev.amarulasolutions.com/display/ODWIKI/i.CoreM6+1.5

I tried building both the 4.15-RC6 kernel, a 4.19 kernel and a 4.14 LTS kernel.

Using the suggested method of generating the graphical display of the
pipeline options, I am able to enable various pipeline options
connecting different /dev/videoX options tot he camera. I have tried
both the suggested method above as well as the instructions found in
Documentation/media/v4l-drivers/imx.rst for their respective kernels,
and I have tried multiple options to capture through
ipu1_csi1_capture, ipu2_csi1_capture, and ip1_ic_prepenc capture, and
all yield a broken pipe.

libv4l2: error turning on stream: Broken pipe
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could
not read from resource.
Additional debug info:
gstv4l2bufferpool.c(1064): gst_v4l2_buffer_pool_poll ():
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
poll error 1: Broken pipe (32)

I can hear the camera click when I start gstreamer and click again
when it stops trying to stream.

dmesg indicates a broken pipe as well..

[ 2419.851502] ipu2_csi1: pipeline start failed with -32

might you have any suggestions?

thanks,

adam

\
 
 \ /
  Last update: 2018-10-23 17:20    [W:1.097 / U:0.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site