Linumiz participated in the OSSummit organized by The Linux Foundation in Dublin, Ireland on Sept 12-16, 2022. Out of 5 talks, 3 talks proposed by Linumiz engineers have been accepted: Dinesh Kumar K discussed the topic of — Interfacing Sensor with Zephyr for IoT Devices – Youtube Parthiban discussed the topic of — Contributing to Zephyr vs (Linux…
In our previous post, we have explored basic details about Introduction to Provisioning and it’s needs. In this post we will narrow down our use case and experiment how it works. As mentioned in our previous post, we will use Hardware: Phytec Phycore imx6UL/ULL SoM Storage: eMMC We will assume that the hardware…
Development of various Embedded Hardware in market based on various architectures are currently available as various consumer to industrial solutions. Hardware manufacturer also provide Board Supported Package (BSP) to get the hardware up and running with basic system software. Based on various requirements and use cases, these software are engineered in various ways and customized…
uhubctl is utility to control USB power per-port on smart USB hubs. Smart hub is defined as one that implements per-port power switching. This utility can be build in Yocto using the below recipe. View the code on Gist. Above is the bitbake recipe for version 2.0.0. View the code on Gist. Above is the…
BeagleBone Black serial peripheral boot: BBB supports many peripheral boot options which can be choosen by the SYSBOOT button projected out near p8 header. Button pressed the sequence is spi0 | mmc0 | usb0 | uart0 Button released the sequence is mmc1 | mmc0 | uart0 | usb0 so we have uart0 in both the…
Source code browsing in large projects is always tedious job to narrow down. In repositories like Linux Kernel, where the source code grows everyday needs regular updating and indexing to keep the search efficient and correct. For browsing the source code in Linux Kernel, there are few options and built-in ways to remember when using…
UART is the traditional serial communication protocol used. It offers only two pins RX and TX for sending and receiving characters serially. A microcontroller can have more than one UART. For instance MSP430F5418 microcontroller has two UART’s (UART and enhanced UART). Just read the desired controller datasheet for getting the info. There are two methods…
It took some time and effort to list the directories alone using ‘ls‘ command. The below option helps in showing that. ls -d */ Here is the working video of Listing only the directories using ls command
To re-run the previous command, we can use the below special way in bash. !! #This re-runs the previous command But the question is, why should i run ‘!!’ instead of using up arrow for previous command. One quick use case would be for running ‘sudo’. We often end up in ‘Permission denied’ error and…
We often used to type a lengthy command and realize the error after running the command. To correct this error, either we used to re-type the whole command or edit (after up arrow). This can be easily handled with bash tricks by using ‘^’. Example: cp /some/very/long/path/for/the/source /some/extra/loong/path/for/destination Note the wrong spell ‘loong’ in…
