Buildroot

mscandal

I'm currently working with a system using Buildroot and would like to hook an OakD up to it. I've seen a few packages floating around for getting DepthAI on to a system built with Yocto and was hoping there was a DepthAI Buildroot package out there.

jakaskerl

mscandal

As of now, there isn't an official DepthAI Buildroot package provided by Luxonis (the creators of DepthAI). However, it is possible to integrate DepthAI into a Buildroot-based system by creating a custom Buildroot package. Here’s a general outline (GPTed 🙂)

1. Create a Custom Buildroot Package

You can create a custom Buildroot package for DepthAI. Here’s a step-by-step guide:

Step 1: Set Up Your Buildroot Environment

Download and set up Buildroot from the official repository.

Step 2: Create a Custom Package Directory

In the Buildroot directory, create a new directory for your DepthAI package inside package/.

mkdir -p package/depthai

Step 3: Write the `depthai.mk` File

Create a depthai.mk file inside the depthai directory with the following content:

# DepthAI Makefile

DEPTHAI_VERSION = 2.15.0.0 # Adjust the version accordingly
DEPTHAI_SITE = https://github.com/luxonis/depthai-core/archive/refs/tags/v$(DEPTHAI_VERSION).tar.gz
DEPTHAI_SITE_METHOD = tarball
DEPTHAI_LICENSE = MIT
DEPTHAI_LICENSE_FILES = LICENSE

# Define dependencies
DEPTHAI_DEPENDENCIES = host-cmake

# Extract and build steps
define DEPTHAI_BUILD_CMDS
	(cd $(@D) && mkdir build && cd build && \
	cmake -DCMAKE_INSTALL_PREFIX=$(TARGET_DIR)/usr .. && \
	$(MAKE) && $(MAKE) install)
endef

# Install step
define DEPTHAI_INSTALL_TARGET_CMDS
	$(INSTALL) -D -m 0755 $(@D)/build/depthai $(TARGET_DIR)/usr/bin/depthai
endef

# Register the package
$(eval $(generic-package))

This Makefile handles downloading, building, and installing the DepthAI core library.

Step 4: Create a `Config.in` File

Inside the depthai directory, create a Config.in file to allow enabling the package via Buildroot’s menu configuration:

config BR2_PACKAGE_DEPTHAI
    bool "DepthAI"
    help
      DepthAI is the core library for using Luxonis OAK devices.

Step 5: Integrate with Buildroot

Edit the package/Config.in file to include your DepthAI package:

source "package/depthai/Config.in"

Step 6: Configure and Build

Run make menuconfig in the Buildroot directory.
Navigate to your package and enable it.
Run make to build your system with the DepthAI package included.

make sure you change the build calls with the ones from luxonis/depthai-core

Thanks,
Jaka