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
Linux Device Drivers
Linux Device Drivers
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
How to measure Network Throughput using iperf ?
iPerf3 is a tool for active measurements of the maximum achievable bandwidth on IP networks. It supports … Read more
Enabling Serial Console on Raspberry Pi (RPi) using USB to TTL Serial Cable
For enabling Serial console on RPi, so that we can get serial console on RPi, we bought … Read more
How to resolve : fatal error: curses.h: No such file or directory
Whenever you are trying to do kernel menuconfig very first time after installation of Ubuntu, its chances … Read more
How to check if Bluetooth device is UP or NOT using l2ping ?
If you want to know the bluetooth device you want to connect to is alive or not, … Read more
Scan, Pair, Connect to Bluetooth device from Ubuntu from command line using bluetoothctl
bluetoothctl is bluetooth control tool which allows us to make the host discoverable, scan other devices, pair … Read more
Modifying bitbake/yocto initscripts to start wifi during boot
We will need to change the wpa-supplicant.conf file as below, by modifying poky/meta/recipes-connectivity/wpa-supplicant/wpa-supplicant/wpa_supplicant.conf-sane Now, once we modified … Read more
Simple wifi packet sniffer to capture every packet received on wlan0 interface
This program captures the network packets received on wifi interface. If you don’t know which interface to … Read more