Hi Andrey,
Please start a new thread for Xavier.
the below works
cd /usr/src/linux-headers-4.9.108-tegra/kernel-4.9
mkdir v4l2loopback
cd v4l2loopback/
git clone https://github.com/umlaeute/v4l2loopback.git
cd v4l2loopback
make
make install
modprobe v4l2loopback devices=1 video_nr=2 exclusive_caps=1
echo options v4l2loopback devices=1 video_nr=2 exclusive_caps=1 > /etc/modprobe.d/v4l2loopback.conf
echo v4l2loopback > /etc/modules
update-initramfs -u
that works [thx to honey_patoceoul who helped determine that]:
sudo apt-get install v4l-utils
v4l2-ctl -d /dev/video2 --all
Driver Info (not using libv4l2):
Driver name : v4l2 loopback
Card type : Dummy video device (0x0000)
Bus info : platform:v4l2loopback-000
Driver version: 4.9.108
Capabilities : 0x85208002
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x85208002
Video Output
Video Memory-to-Memory
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Priority: 0
Video output: 0 (loopback in)
Format Video Output:
Width/Height : 8192/8192
Pixel Format : 'YVYU'
Field : None
Bytes per Line : 16384
Size Image : 134217728
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Limited Range)
Flags :
Streaming Parameters Video Capture:
Frames per second: 30.000 (30/1)
Read buffers : 8
Streaming Parameters Video Output:
Frames per second: 30.000 (30/1)
Write buffers : 8
User Controls
keep_format 0x0098f900 (bool) : default=0 value=0
sustain_framerate 0x0098f901 (bool) : default=0 value=0
timeout 0x0098f902 (int) : min=0 max=100000 step=1 default=0 value=0
timeout_image_io 0x0098f903 (bool) : default=0 value=0