Hi, i discovered and solved incompatible gc2035 driver with some v4l2 applications.

 

I made some modifications to the 3.4.39-02 kernel-lobo:

 

gc2035: of 8fps to ~20fps eand improvements in the matter of light.

The original driver accepts only 800×600, added the following resolutions: 800×600/640×480/320×240

sunxi_wdt: builtin to module (greater flexibility to change the module options) / pr_info some functions, causing flood in kern.log (switched to pr_debug)

CONFIG_CMDLINE=â€earlyprintk=ttyS0,115200 loglevel=5 initcall_debug=0 console=ttyS0,115200 console=tty0 fsck.mode=force fsck.repair=yes init=/init ipv6.disable=1

kernel size: ~59mb

 

For more informations:

http://www.sistemasembarcados.org/2016/04/orange-pi-camera-with-v4l2loopback-vidcopy.html

That's great news!

 

Unfortunately in Armbian we still miss a few basic patches to get the camera working (please see the Known to NOT work (reliably) yet section). In case you're already using our build system pull request are welcomed

Hi my friend!!

 

I will make a kernel fork and apply the changes, basically just change the gc2035.c by https://github.com/lhelontra/OrangePI-Kernel/commit/cecec660a3af2f44b39791660f48df2b4367bef7

 

I also wrote a utility that can be useful in building images: https://github.com/lhelontra/embedtool

hello Leonardo

i have an orange pi pc and gc2035 camera and  i want to program with python using picamera package is that possible please ?

and for the OrangePI-Kernel i can't build it and i have always this message 

Error: KERNEL NOT BUILT

Thank you, for your input.

I have tried to make v42loopback, but it fails during make operation pointing to sun8i.110 kernel, with missing build folder. (As far as I understood correct one shold be 112 version, but don't know how to change symlink to it)

 

(I tried to deploy it on armbian 5.05)

Ok, some more progress using ff. instructions:

http://www.sistemasembarcados.org/orange-pi-camera-with-v4l2loopback-vidcopy.html

 

sudo apt-get install linux-headers-3.4.112-sun8i

sudo reboot

sudo sed -i '287d;' /usr/src/linux-headers-3.4.112-sun8i/fs/Kconfig

cd /usr/src/linux-headers-3.4.112-sun8i/

sudo make scripts

 

after these steps I was able to make and istall v4l2loopback

Hi my friend!!

 

I will make a kernel fork and apply the changes, basically just change the gc2035.c by https://github.com/lhelontra/OrangePI-Kernel/commit/cecec660a3af2f44b39791660f48df2b4367bef7

 

Leonardo,

 

I'm excited to try your patch. Have you had an opportunity to submit a pull request to the armbian project? i saw a a gc2035 patch in the unresolved folder but it didnt look like your changes

 

Sent from my SM-G920V using Tapatalk

AFAIK @lex provided a more improved version here (already as patch that should apply flawlessly). Thread/discussion here: http://forum.armbian.com/index.php/topic/996-gc2035-driver-update-320x240640x480-20-fps/

The sources repository show the inclusion of a patched gc2035 kernel module submitted on June 11.  Is there a way I can verify if this patch in included in my recently updated 5.16 system running on an orange pi one?  My csi cam on an external dongle is still causing problems and I'm not sure if I'm running this patch. How long do changes in the repository take to make into downstream systems on the street, and is there a way I can "check"?

Is there a way I can verify if this patch in included in my recently updated 5.16 system running on an orange pi one?

 

Sure, use uname and modinfo:

root@orangepipcplus:~# uname -a
Linux orangepipcplus 3.4.112-sun8i #2 SMP PREEMPT Wed Jul 13 16:38:07 CEST 2016 armv7l armv7l armv7l GNU/Linux
root@orangepipcplus:~# modinfo gc2035
filename:       /lib/modules/3.4.112-sun8i/kernel/drivers/media/video/sunxi-vfe/device/gc2035.ko
license:        GPL
description:    A low-level driver for GalaxyCore gc2035 sensors
author:         @lex
author:         leonardo lontra
author:         raymonxiu
alias:          i2c:gc2035
depends:        cci,vfe_subdev
intree:         Y
vermagic:       3.4.112-sun8i SMP preempt mod_unload modversions ARMv7 p2v8 
parm:           hres:hres=0 (640x480|1280x720|1600x1200 - 15 FPS), hres=1 (800x600|1600x1200 - 10 FPS), hres=2 (320x240|640x480|800x600 - 20 FPS), hres=3 (320x240|352x288|640x480 - 15 FPS) (default=0) (uint)
parm:           mclk:mclk override (default=0) (uint)
parm:           frate:frate override (default=0) (uint)