@mitu
I also installed Retropie 4.5.1 using same method as @kennex as there is no official image for RPI 4 releases yet.
Today I tried to configure wiimote for arcade shooting games using my wiimote as gun.
Thing is, in-game, crosshair is not moving, can only make it move with D-pad, and buttons A & B doesn't work aswell
I'am using official nintendo wiimote motion plus and dolphin bar (May Flash), wiimote is connected through dolphin bar not in bluetooth.
On raspbian desktop, everything is right, I can use my wiimote as mouse and buttons A & B works as right/left mouse click.
Command cat /dev/input/mouse0 shows me wiimote is sending signals, so it seems to be working, only by moving wrist not pushing any wiimote buttons..
But still didn't figured what was the issue in-game.
Could it be related to the use of RPI 4 and non-official install method ?
Thanks a lot.