New working firmware for Teclast M40 PRO touchscreen

[rooi-oog]

Good day.

First of all, I would like to express my gratitude for this amazing repository. I have gleaned a vast amount of information from it.

I acquired a touchscreen from a Teclast M40 Pro tablet with a gsl3692 chip. I have tried all firmware versions for this chip from this repository under linux directory, but none of them worked correctly.
Unfortunately, I did not have a working tablet, only the touchscreen, so I had to search for the firmware for gsl3692 in the official tablet firmware.
I was able to find it in the boot.img.
This firmware works excellently, so I would like to share it with the community, but I am not sure how to do it properly.
Due to having only the touchscreen and not the tablet, I do not know the answers to some questions: Are the axes inverted, what is finger tracking, are there axis mirrored an so on.
Using evtest, I found only the maximum and minimum axis values, which is 2045 for X and 1520 for Y
Could you please advise whether it is worth adding the firmware without this data or not?

Thanks.