Bitbake Example Recipes

Single File C Recipe meta-newlayer/recipes-example/example/example_0.1.bb: meta-newlayer/recipes-example/example/files/example.c: Setting-up New Recipe using devtool DevTool is a tool shipped by Yocto used to help with many operations. One of such operations is creating a Recipe from git repository. To register a repository we... Read more

Building crosstool-ng on CentOS-7

Crosstool-ng is a project that simplifies building of c/c++ toolchains for many hosts/targets. For this particular project vendor only provided cygwin build, but I had to run the compiler on linux. As toolchain was build using crosstool-ng-1.13.1, I simply check-outed... Read more

Creating AWS EKS Cluster in Terraform

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Let’s Encrypt Single Domain Issuing

Installation Issuing certificate (DNS challenge) Read more

USB Descriptors

Setup data bytes Read more

STM32 USB Device Interface

Device Class Initialization (WORK IN PROGRESS) Setting endpoint FIFO buffers If we wish to use certain endpoints for transfer, we first must assign FIFO buffer sizes. Otherwise, the transfer wont work. Example code: Device class specification struct Device class initialization... Read more

Letsencrypt Manual Wildcard Certificate Issuing

Copy file from https://raw.githubusercontent.com/joohoi/acme-dns-certbot-joohoi/master/acme-dns-auth.py to /etc/letsencrypt/acme-dns-auth.py and change user to root and chmod to 0755. Also adjust script to appropriate python version. Then simply add record to DNS system, and continue execution of script. Single domain issuing using DNS TXT... Read more

Datadog Synthetic Tests with Terraform

To simplify management of Datadog synthetic tests, I decided to use Terraform. After playing with it a bit, I came with following module structure which covers few cases that I needed to handle. HTTP Status Monitoring To cover HTTP status... Read more

USB FS/HS cheat sheet

When I was learning USB 2.0 I struggled with some concepts because a lot of things need to be remembered without having any usable visualization tool. I looked at Beagle board and similar devices, but because of their cost they... Read more

Kubectl tips/tricks

List all resources under namespace Read more