How to begin writing drivers for an analog PS2 joystick module?
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I have a PS2 joystick module, from SunFounder that has analog input for the x and y axis as well as a press-button. I know a bit of wiringPI, but how would I pass the inputs from the C program to retropie?
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Just implement a standard joystick/gamepad driver and it should be detected automatically. Take a look at
xboxdrv's sources to see how it's done from userspace. -
But it's not a USB input, it goes to BCM pins IO2 and IO3 on my RPi 3B.
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xboxdrvis not limited to USB only controllers, it is just an example on how to write a joystick/gamepad driver.
Maybe something like https://github.com/tuomasjjrasanen/python-uinput would be simpler - read the inputs from your device and create a virtual joystick/gamepad which should be read by any programs supporting the standardevdevinterface. -
Alright, I appreciate the help!
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Bumping because I honestly can't find a good starting point. I need to first figure out how to read analog input, because whatever I try seems to fail.
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@ian-rosenberg Don't bump topics for no reason, it's rude.
If you can't figure out how to do things, try to find and example - did you look at the Adafruit's code ?
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