Thanks trimmtrabb. I’ve done some more tweaking and still can’t get player 2 controls to work. The file you mentioned (/opt/retropie/configs/all/retroarch.cfg) seems to only specify the keyboard controls. Then it has these two lines to fetch the configs for my Xin-Mo controller:

input_autodetect_enable = “true”
joypad_autoconfig_dir = “/opt/retropie/emulators/RetroArch/configs/”

I’ve looked in that folder and specifically found the Xin-Mo config which I can edit to my heart’s content. What I’m finding confusing is there seems to be three separate places where I could potentially put the code for player 2. Also I’m not sure whether I need to specify the input_player2_joypad_index, the input_device or the input_driver. I’ve tried putting my player 2 code in all these places to no avail:

/opt/retropie/configs/all/retroarch.cfg
/opt/retropie/emulators/RetroArch/retroarch.cfg
/opt/retropie/emulators/RetroArch/configs/Xin-MoXin-MoDualArcade.cfg

In the interest of completeness here’s the code I’ve been trying:

input_player2_b_axis = “-2”
input_player2_y_btn = “18”
input_player2_select_btn = “19”
input_player2_start_axis = “+3”
input_player2_up_btn = “12”
input_player2_down_btn = “13”
input_player2_left_btn = “11”
input_player2_right_btn = “14”
input_player2_a_axis = “+2”
input_player2_x_axis = “-3”

These inputs are definitely correct as I’ve successfully used them to control player one as a test that everything was working. No dice for player two though.

What am I doing wrong??