After update from armbian5.23 to armbian5.25 driver for gc2035 not work. The device isn't defined.
=========== Armbian 5.25 ==============
root@orangepipc:~# ls /dev/video*
/dev/video0 /dev/video1
Where: /dev/video0 and /dev/video1 - v4l2loopback
root@orangepipc:~# cat /etc/modules
#8189es
#rfcomm
#w1-sunxi
#w1-gpio
#w1-therm
gc2035
vfe_v4l2
#sunxi-cir
v4l2loopback
root@orangepipc:~# modinfo vfe_v4l2
filename: /lib/modules/3.4.113-sun8i/kernel/drivers/media/video/sunxi-vfe/vfe_v4l2
I had solved this problem by my friend.
Run this script
sunxi-pio -m "PG11<1><0><1><1>"
modprobe gc2035
modprobe vfe_v4l2
The most import is that don't load gc2035 & vfe_v4l2 before. So you had better remove it in /etc/modules
This is my /etc/modules
#w1-sunxi
#w1-gpio
#w1-therm
#gc2035
#vfe_v4l2
#sunxi-cir
#v4l2loopback
you may see /dev/video0, but when you reboot, it lose again
I add my scrip to /etc/rc.local
this is my /etc/rc.loca