AR0234 kernel driver for NVIDIA Jetson

NVIDIA Jetson kernel driver for Onsemi AR0234, a 2.3 MP global shutter 1/2.6" CMOS sensor.

• 2-lane MIPI CSI-2
• 10-bit RAW output
• 1920×1200 @ 60 fps

Setup

Install required tools:

sudo apt install -y --no-install-recommends dkms

Clone this repository:

cd ~
git clone https://github.com/Kurokesu/ar0234-jetson-driver.git
cd ar0234-jetson-driver/

Run setup script:

sudo ./setup.sh

Setup script:

• Fetches NVIDIA device tree headers required for build
• Builds and installs kernel module via DKMS
• Builds and copies device tree overlay (.dtbo) to /boot

Optionally, install the ISP tuning file:

sudo cp ./tuning/camera_overrides.isp /var/nvidia/nvcam/settings

To restore default ISP parameters, remove the overrides file:

sudo rm /var/nvidia/nvcam/settings/camera_overrides.isp

Use Jetson-IO to configure the CSI connector:

sudo /opt/nvidia/jetson-io/jetson-io.py

Navigate through the menu:

1. Configure Jetson CSI Connector (named "22pin" on 6.2.2, "24pin" on 6.2.1)
2. Configure for compatible hardware
3. Select port configuration:
   • Camera AR0234-A - cam0
   • Camera AR0234-C - cam1
   • Camera AR0234 Dual - cam0 + cam1

4. Save pin changes
5. Save and reboot to reconfigure pins

After reboot, verify sensor is detected:

sudo dmesg | grep ar0234

Image output

GStreamer

Single:

gst-launch-1.0 -e nvarguscamerasrc sensor-id=0 ! \
   'video/x-raw(memory:NVMM),width=1920,height=1200,framerate=30/1' ! \
   queue ! nvvidconv ! queue ! nveglglessink

Dual:

gst-launch-1.0 -e \
   nvarguscamerasrc sensor-id=0 ! \
      'video/x-raw(memory:NVMM),width=1920,height=1200,framerate=30/1' ! \
      queue ! nvvidconv ! queue ! nveglglessink \
   nvarguscamerasrc sensor-id=1 ! \
      'video/x-raw(memory:NVMM),width=1920,height=1200,framerate=30/1' ! \
      queue ! nvvidconv ! queue ! nveglglessink

NVIDIA sample camera capture application

nvgstcapture-1.0 --sensor-id 0

Test mode

AR0234 has a built-in test pattern generator for verifying data validity.

Enable test pattern:

# 100% color-bar test pattern (test_mode = 2)
echo 2 | sudo tee /sys/module/nv_ar0234/parameters/test_mode

Turn test pattern off:

echo 0 | sudo tee /sys/module/nv_ar0234/parameters/test_mode

Test pattern code	Description
0	Off (normal operation)
1	Solid color
2	100% color bar
3	Fade-to-grey color bar
256	Walking 1s (10-bit)

Development builds

For manual builds without DKMS:

make              # build everything (dtbo + kernel module)
sudo make install # copy dtbo to /boot, rmmod + insmod

Note

Module is loaded immediately via insmod but won't persist across reboots. Use sudo ./setup.sh for permanent installation via DKMS.

Individual targets:

make dtbo      # build only the device tree overlay
make module    # build only the kernel module
make clean     # remove build artifacts

Build artifacts are placed in ./build.