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
Linux Kernel
Linux Kernel
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
Convert bitmap ( bmp ) files to raw 16 bit data using C program in Linux
bmptoraw is utility to convert bitmap files to raw 16 bit data. This program assumes a 24 … Read more
sniffex – C program to Capture wifi packets using libpcap
libpcap provides functions for user-level packet capture, used in low-level network monitoring. Following program captures the packets … Read more
How to invoke OOM Killer manually for understanding which process gets killed first ?
As we have seen in our previous post “Understanding Linux OOM Killer and avoiding perticular process from … Read more
How Android Bluetooth Profiles are enabled and Services are activated ?
How Android Bluetooth profiles are enabled ? Answer: Check packages/apps/Bluetooth/res/values/config.xml If you want to disable the above … Read more
Turn Your Linux PC Into Bluetooth Speakers For Your Mobile Phone
This post shows steps to Play Songs from mobile and listen on laptop/desktop speaker over Bluetooth. The … Read more
Configure Ubuntu 16.04 as Bluetooth A2DP Sink
This post shows steps configure Ubuntu 16.04 as Bluetooth A2DP Sink. When Ubuntu is acting as A2DP … Read more
Send and receive data from user space and kernel using Netlink sockets
As mentioned in Linux kernel souce code net/netlink/af_netlink.c, netlink is a Kernel-user communication protocol which allows user … Read more
Communication between user-space and kernel space using Netlink sockets
As mentioned in Linux kernel souce code net/netlink/af_netlink.c, netlink is a Kernel-user communication protocol which allows user … Read more