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  5. How to install and build Raspberry Pi Kernel Driver for Arducam Pivariety Camera

How to install and build Raspberry Pi Kernel Driver for Arducam Pivariety Camera

Table Of Contents

In order to ensure the normal working of the hardware, the driver needs to operate according to standard procedures. These operations are cumbersome. Generally, only the hardware manufacturer understands the specific details. One of the main tasks of the driver is to ensure that the hardware works as expected according to the standard procedure and hardware communication.

1. How to install Raspberry Pi Kernel Driver for Arducam Pivariety Camera

Note

The Pivariety V4L2 kernel driver only supports the 5.10 version of Raspberry Pi OS (The release date is March 4th, 2021).
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If you want to compile the kernel driver by yourself, please follow the chapter on How to build Raspberry Pi Kernel Driver-Pivariety Camera.

1.1 Download V4L2 Pivariety driver

wget https://github.com/ArduCAM/Arducam-Pivariety-V4L2-Driver/releases/download/Arducam_pivariety_v4l2_v1.0/arducam_pivariety_v4l2.tar.gz
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1.2 Decompress V4L2 Pivariety driver

tar -zxvf arducam_pivariety_v4l2.tar.gz Release/
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1.3 Install V4L2 Pivariety driver

cd Release/
./install_driver.sh
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After pressing y to reboot, driver installation is complete.

Note

Please make sure the camera is connected correctly before rebooting, otherwise, you will not detect the camera.
If you want to upgrade the version of Raspberry Pi(for example you want to upgrade your pi3 or Pi3B+ to pi4 ), please reinstall the driver. Each version of Raspberry Pi when you use needs to be installed V4L2 Pivariety driver once.

1.4. V4L2 Pivariety driver detection

Note

You can not use the official code(vcgencmd get_camera) to detect the camera! Please following our DOC to detect the camera!

1.4.1 View V4L2 Pivariety driver status

dmesg | grep arducam

The driver is installed successfully if output arducam-pivariety and the camera has been detected if output firmware version.

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Note

[ 31.835619] arducam_vddl: disabling
[ 31.835638] arducam_vdig: disabling
[ 31.835657] arducam_vana: disabling
does not mean your driver installation is failing, please skip it.

By the way, it means that the camera is not detected if the probe failed is displayed, please check the camera connection.
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You can see the following video nodes When everything is normal.

ls /dev/video* -l
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1.4.2 View device node information

v4l2-ctl --list-formats-ext
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1.5 Failed to Install V4L2 Pivariety Driver

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Please check the kernel version, we only provide the driver for the latest official kernel version image when this Pivariety camera is released.

Note

If you want to compile the kernel driver by yourself, please please follow the chapter on How to build Raspberry Pi Kernel Driver-Pivariety Camera.
If you want to switch to the native camera please go here to uninstall the V4L2 Pivariety Driver.

1.6 What is the next?

You can following the DOC to access the camera.

If you encounter any trouble, please following the DOC to troubleshooting.

2. How to build Raspberry Pi Kernel Driver for Arducam Pivariety Camera

We only provide the driver for the latest official kernel version image when the Pivariety camera is released. Please check the kernel version if the driver installation fails. You can choose to compile the kernel yourself if the kernel version used is not provided by us.

There are two compilation methods:

2.1 The first way-Build from the kernel source

Please refer to the official documentation to compile the kernel.

NOTE

The instructions are divided into native builds and cross-compilation.

After obtaining the linux source code, add the arducam driver and device tree code through apply patch.

git clone https://github.com/ArduCAM/Arducam-Pivariety-V4L2-Driver.git
cd <path>/linux
patch -p1 -i <path>/Arducam-Pivariety-V4L2-Driver/patchs/arducam_driver.patch

At this point, your kernel driver building is complete! You can go to the canpter on What’s the next.

2.2. The second way-Build from the kernel headers

2.2.1 Download the kernel source code

cd ~
sudo apt update && sudo apt install git bc bison flex libssl-dev
sudo wget https://raw.githubusercontent.com/RPi-Distro/rpi-source/master/rpi-source -O /usr/local/bin/rpi-source && sudo chmod +x /usr/local/bin/rpi-source && /usr/local/bin/rpi-source -q --tag-update
mkdir $(uname -r)
rpi-source -d $(uname -r)

2.2.2 Compile the driver and device tree

cd ~
git clone https://github.com/ArduCAM/Arducam-Pivariety-V4L2-Driver.git
cd Arducam-Pivariety-V4L2-Driver/src

# compile dtbo
patch -p1 -d /lib/modules/$(uname -r)/build -i $(pwd)/../patchs/arducam_device_tree.patch
make -C /lib/modules/$(uname -r)/build  dtbs
sudo cp /lib/modules/$(uname -r)/build/arch/arm/boot/dts/overlays/arducam.dtbo /boot/overlays/arducam.dtbo

# manully add dtoverlay=arducam in /boot/config.txt

# compile arducam.ko
make && sudo make install
sudo depmod
sudo modprobe arducam

At this point, your kernel driver building is complete!

2.3 What is the next?

You can following the DOC to access the camera.

If you encounter any trouble, please following the DOC to troubleshooting.

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