How to declare a new joystick on an existing controller

prog-amateur

Hello everyone, I am presenting my problem so that I hope to find an easy solution !
I have a bartop.

As you can see, it contains:
- 1 Sanwa joystick (so it is a digital, not analog joystick)
- 6 buttons

I'm very satisfied with it, but for racing games or games like Zelda/Mario 64, I end up with an "all or nothing" joystick. The Sanwa Joystick does not know the difference between walking and running. same for racing games I can't make any sensitivity between turning slowly or turning completely at a turn (it is always MAX by default).

So I programmed a mini analog thumbstick with arduino :

But it doesn't contain any button. It is therefore impossible for me to setup this thumbstick on EmulationStation even if it is detected as a new gamepad (you have to press a button to setup the gamepad, which is impossible in my case).

QUESTION :
My question is: how to use this analog joystick with the bartop Gamepad? Is there any configuration file in Batocera to make it work (if yes, how to) ?

Thank you very much for your help!

nadenislamarre

very nice.
my understanding is that the current pad has no analogic (ie, if you check with sdl2joy or evtest, you'll get only 0/1 events).
i guess the 2nd pad is discovered as a 2nd joystick, not a merge between the two joysticks. To be confirmed with evtest
the solution (if the 2 previous assertions are ok) is to find a linux driver for merging events sources (event2+event3 => event4 seen as only 1 source)

nadenislamarre

it looks like you need that : http://hetgrotebos.org/wiki/uinput-mapper

prog-amateur

nadenislamarre Thank you, yes it is true that both pads are discovered as 2 separates gamepads.
I will try to take time to read the documentation you have sent (I see the 1st chapter is titled "Motivation" !, I will try to have motivation while learning this uinput-mapper command hehe! ).