01-30-2018, 01:32 AM
I believe that you are on the right track here. As far as the code goes, then, I would suggest that you look at the GPIO controller driver code and just get an idea of how it works.
https://github.com/TheFlav/mk_arcade_joystick_rpi
There you can see the "mk_arcade_joystick_rpi.c" file and that the install.sh script adds this line into a "/etc/modprobe.d/mk_arcade_joystick.conf" file:
options mk_arcade_joystick_rpi map=4 gpio=4,17,6,5,19,26,16,24,23,18,15,14,-20
Maybe take a look at that and see if you can make sense of it.
https://github.com/TheFlav/mk_arcade_joystick_rpi
There you can see the "mk_arcade_joystick_rpi.c" file and that the install.sh script adds this line into a "/etc/modprobe.d/mk_arcade_joystick.conf" file:
options mk_arcade_joystick_rpi map=4 gpio=4,17,6,5,19,26,16,24,23,18,15,14,-20
Maybe take a look at that and see if you can make sense of it.
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