How to capture Bluetooth packets on Android ?

Bluetooth

When we want to capture bluetooth packets for some debugging in Android, we can follow below procedure. … Read more

adb shell command to Turn ON Bluetooth & make it discoverable

bluetooth

We can turn on the Bluetooth using adb command as below, once you type this on your … Read more

Writing first Linux kernel Module

We will try to understand the simple kernel driver which initially we will compile for Ubuntu host … Read more

How to Enable and Disable Wireless / WiFi from command line ?

Rfkill is a tool for enabling and disabling wireless devices. We use “rfkill list” command as below … Read more

How to Turn ON and Turn OFF Bluetooth from command line ?

Rfkill is a tool for enabling and disabling wireless devices. Using “rfkill list” command we first check … Read more

How to stream microphone audio to laptop speaker on Linux / Ubuntu ?

pavucontrol

If you have a microphone with 2.5mm audio jack and don’t have a mixer which can play … Read more

How to extract files from jffs2 root filesystem image ?

[ Note: following commands has been tried on ubuntu 16.04, but should work on other Linux distros … Read more

Creating jffs2 filesystem image for embedded target platform

What is JFFS2 ?=> JFFS2 is a log-structured file system designed for use on flash devices in … Read more

insmod: ERROR: could not insert module hello.ko

We tried to write a simple class driver framework which will create a directory in /sys/class, we … Read more