I just obtained a X-BOX game controller and it responds with name "Microsoft X-Box One S pad". So looking just for "Controller won't work.
Also, the position order of the buttons for 3 and 4 is flipped
PS4 button #

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X-Box button #
X(Cross) #1 - Bottom of Diamond pattern - A #1
Circle #2 - Right of Diamond pattern - B #2
Triangle #3 - Top of Diamond pattern - Y #4
Square #4- Left of Diamond pattern - X #3

Not sure how people would prefer the button orders, but under PMC8 the STOP is #1 (Cross or A); Park is #2 (Circle or ; Un-park is #3 (Triangle or X).

For now I am just testing name for presence of either "Controller" or "X-Box and assigning a boolean PS1 to true.

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