Making USB touchpad from Synaptic device

Hi there!

I want to make a USB touchpad using an old one from Sony Vaio laptop.
The model number is TM-01571-001 and Synaptics number is TM1571 920-001769-01RevA

The problem is I cannot find the pinout of the touchpad anywhere. Is there anyone who is familiar with this model or can provide a datasheet?

Here is the image of the touchpad