Can I use OV5640 on Nanopi Duo2 with armbian now?

Hi everyone.

I bought an ov5640 camera for my Nanopi Duo2. As their wiki clearly showed ov5640 plug and play, I thought I am facing no problems.

That's not the case. Armbian seems not to support ov5640 by defualt.

My problem:

OV5640 do not work on nanopi duo2 with latest armbian.

What did I try:

I searched for answers online, but they are old (years ago), saying I have to edit some dts files to get the cam work.

I tried some of them, then I messed up my system and have to re-flash the sd card again and again. I guess they might won't apply to the latest image.

I wonder:

• Is the camera ov5640 on Nanopi Duo2 supported by armbian by default now?
• If not, how exactly can I make it work?

Thanks for reading , looking for solutions.

--------------------------------------------------

Additional info (on a fresh image from armbian, only did "apt upgrade" and changed some armbian-config)

I am on linux 5.10.60-sunxi:

root@nanopiduo2:~# uname -a
Linux nanopiduo2 5.10.60-sunxi #21.08.1 SMP Wed Aug 25 18:19:32 UTC 2021 armv7l armv7l armv7l GNU/Linux

What I did to armbian-config:

 lqqqqToggle hardware configurationqqqqqqk
 x                                       x
 x Use <space> to toggle functions and   x
 x save them. Exit when you are done.    x
 x                                       x
 x lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk x
 x x   [ ] analog-codec                x x
 x x   [*] cir                         x x
 x x   [ ] cpu-clock-1.2GHz-1.3v       x x
 x x   [*] cpu-clock-1.368GHz-1.3v     x x
 x x   [ ] cpu-clock-1.3GHz-1.3v       x x
 x x   [*] i2c0                        x x
 x x   [*] i2c1                        x x
 x x   [*] i2c2                        x x
 x x   [*] pps-gpio                    x x
 x x   [*] pwm                         x x
 x x   [*] spdif-out                   x x
 x x   [*] spi-add-cs1                 x x
 x x   [ ] spi-jedec-nor               x x
 x x   [*] spi-spidev                  x x
 x x   [ ] uart1                       x x
 x x   [ ] uart2                       x x
 x x   [ ] uart3                       x x
 x x   [*] usbhost0                    x x
 x x   [ ] usbhost1                    x x
 x x   [*] usbhost2                    x x
 x x   [*] usbhost3                    x x
 x x   [*] w1-gpio                     x x
 x mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj x
 x                                       x
 x                                       x
 tqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqu
 x         < Save >     < Back >         x
 mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj

/dev/video0 exists no matter the camera is connected or not, but can't open by ffmpeg or fswebcam.

root@nanopiduo2:~# ls /dev/video*
/dev/video0
root@nanopiduo2:~# fswebcam a.png
--- Opening /dev/video0...
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
Unable to query input 0.
VIDIOC_ENUMINPUT: Inappropriate ioctl for device

dmesg never mention 5640.

root@nanopiduo2:~# dmesg|grep 5640
root@nanopiduo2:~#

Some says I need to load vfe_v4l2, but failed:

root@nanopiduo2:~# modprobe vfe_v4l2
modprobe: FATAL: Module vfe_v4l2 not found in directory /lib/modules/5.10.60-sunxi

Edited December 18, 20214 yr by developer_ken