Identify and Set Maximum values for ABS_X/ABS_Y OR ABS_MT_POSITION_X / ABS_MT_POSITION_Y
When we are writing input driver (touchpad / touchscreen) in Linux, we need to first initialize and … Read more
Linux Device Drivers
Linux Device Drivers
Understanding use of ABS_MT_TRACKING_ID in Multi-touch Driver
Multitouch tracking ID defines the touch starting and touch end ( one touch session from start to … Read more
Understanding Android Touch Event , onTouchEvent ( Motion Event )
When we just touched the touchscreen and printed the logs in application using “onTouchEvent” it printed following … Read more
How to get Android Display Resolution using adb shell command ?
Display resolution indicates the height and width of the physical display which the android device is using. … Read more
How to identify and change input device location in Android ?
Identify what is the current location of the input device using getvent command as, So, the output … Read more
Identify Input Device Information in Android
To identify the information about the input device connected to Android platform, we can use “getevent” as … Read more
How to install Minicom on Linux / Ubuntu ?
Minicom is a text-based serial port communications program. It is used to talk to external RS-232 devices … Read more
Solved: brltty – USB COM Port Gets Immediately Disconnected
When we connected our USB to Serial converter to Ubuntu 22.04, it got detected as ttyUSB0 but … Read more
Ubuntu doesn’t detect WiFi Access Point
Recently I came across very different problem when I moved to a place where there was few … Read more
Understanding wireless beacon packet ( captured using pcap API’s )
As per Wikipedia, Beacon frame is one of the management frames in IEEE 802.11 based WLANs. It contains all the … Read more