Linux Device Drivers

Linux Device Drivers

Writing First Linux kernel Module

We will try to understand the simple kernel driver, its compilation and ways to load the kernel … Read more

Understanding Linux LED Sysfs Class architecture

The LED class just allows control of LEDs from userspace. LEDs appear in /sys/class/leds/. In this post … Read more

How to assign IDC File for Input Device in Android ?

As we have seen in “How to identify which IDC file used by Input Device in Android … Read more

How to identify which IDC file used by Input Device in Android ?

Input device configuration files (.idc files) contain device-specific configuration properties that affect the behavior of input devices. … Read more

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

Settings

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