Hello all,
As I'm trying to find some use to a dead laptop sitting around here, I came up with the idea to use it as a KVM for a server.
With the help of a dedicated controller board, I got the original LCD to display the server image via a standard VGA connection.
But now, I'm moving on to the keyboard and trackpad on it. Looking at the various parts on the motherboard, I discovered the following details:
The keyboard has a set of rows and columns connected to a specialized chip that talks directly to the CPU via the internal bus (National Semiconductor PC87570)
The trackpad uses a 5V chipset that outputs a PS/2 signal that is connected to the same specialized chip.
Clearly, I can't scavenge this chip but doing searches on the web, I stumbled across the use of a Teensy++ 2.0 board with the TMK keyboard firmware collection. It appears to be quite versatile and I believe it could be the solution for me because the homepage for the project on GitHub mentions "PS/2 mouse support as composite device"
However, I could not confirm this would indeed working fine, mostly because I could not find any configuration examples for such a situation.
Would any of you have any hints as to what I should be looking at?
Thanks a lot for your answers.