Linux Archives - Embedded Artistry

22 March 201815 December 2021

Getting Started with the Snapdragon Flight: Driver Development

Earlier this year I was tasked with figuring out how to write a custom device driver for the Snapdragon Flight. While the process ended up being straightforward, documentation and pointers are largely lacking for the Snapdragon Flight environment. What follows is a summary of the information I learned on my driver development journey. I hope …

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25 January 201815 December 2021

Getting Started with Snapdragon Flight: Dev Environment Setup & Useful Resources

I recently started working with Qualcomm's Snapdragon Flight kit. The platform looks pretty interesting, but instructions for getting started are scattered around various locations. I've been compiling the disparate instructions and will be sharing simplified guides for anyone else who's annoyed by the unorganized documentation. First things first: let's walk through the development environment setup. …

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11 January 201815 December 2021

Jenkins: Configuring a Linux Slave Node

Most Jenkins instances start out by using only a single build node. Many teams will quickly outgrow this limit for any number of reasons, such as: Increasing build throughput due to long build times Increasing the number of concurrent builds that can run Building and testing software on multiple architectures (e.g. x86, ARM) Building and …

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8 January 201815 December 2021

Installing ROS on an NVIDIA Tegra TX2

I've recently configured Jenkins slave nodes for a client. One of their build configurations is targeted for a Tegra TX2, so I was configuring a new TX2 build machine to generate ARM images. I was following my usual steps for configuring a Linux slave node, but quickly ran into trouble. Many of the dependencies, particularly …

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16 November 201715 December 2021

Jenkins: Running Steps as sudo

I came across a situation recently where I needed my Jenkins user to be able to run commands as sudo. I have a job that is scheduled nightly to install and update dependencies prior to running my builds. Since apt-get needs to be run with sudo, I needed some way to workaround the password input …

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24 May 201715 December 2021

Getting Started with the Raspberry Pi Compute Module 3: Buildroot Setup, Configuration, and Flashing

I recently encountered the Raspberry Pi Compute Module 3 (CM3) while prototyping with one of my clients. I wanted to share my notes for getting Buildroot configured for CM3 builds. Getting Buildroot You can find Buildroot in the official repository or on the Buildroot Github mirror. To create your project, either fork the buildroot repository …

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26 October 201614 December 2021

Tip: Getting Your Linux Kernel Source

If you're ever using a Linux environment and need the source for your kernel version, simply use apt-get and run the following: apt-get source linux-image-$(uname -r) This command will download the kernel source into the current directory. The apt-get source command will work to get the source for any binary package when available.

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