In this recipe, we will learn about the evtest Linux tool. This tool is used to monitor the input device events.
evtest
is a command-line tool. It will display the information on the input device. It will display all the events supported by the device. Then, it will monitor the device. We just need to run the evtest
command with super user privilege. Run the command as follows:
$ sudo evtest /dev/input/event3
The evtest
command will produce output as follows:
Input driver version is 1.0.1 Input device ID: bus 0x11 vendor 0x2 product 0x13 version 0x6 Input device name: "VirtualPS/2 VMware VMMouse" Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 272 (BTN_LEFT) Event code 273 (BTN_RIGHT) Event type 2 (EV_REL) Event code 0 (REL_X) Event code 1 (REL_Y) Event code 8 (REL_WHEEL...