Mouse event handling in Kernel

Hi,
I want mouse events to be created automatically by a script such that it sends those events to Qt app. For this, I capture the touch screen events from the device file while touching the screen and then write those captured events to the same device file ("/dev/input/event0"). When I touch the screen, mouse cursor moves accordingly but when I write the same events to device file there is no movement in mouse cursor. Could anyone please help?
Thanks,
Sunil.

Actually, you probably need to inject the events into the X input event queue. It has been about 15 years, but back then I did something like what you want so I could use an analog joystick (plugged into the PC game port) to replace a mouse. It will take some time to dig out my code to do that, but it did work for me!