oops i just created a similar thread… having the same issue….

ive set it up in retroarch but unsure of how to set up the second. I do get yellow text coming at the bottom when i star i game.

Ive used filezilla to connect to my pi and in /opt/retropie/configs/all/retroarch-joypads is a file called Xin-MoXin-MoDualArcade.cfg

in it reads
input_device = “Xin-Mo Xin-Mo Dual Arcade”
input_driver = “udev”
input_r_btn = “13”
input_save_state_btn = “13”
input_start_btn = “17”
input_exit_emulator_btn = “17”
input_l_btn = “14”
input_load_state_btn = “14”
input_up_axis = “-1”
input_a_btn = “10”
input_b_btn = “11”
input_reset_btn = “11”
input_down_axis = “+0”
input_right_axis = “+1”
input_state_slot_increase_axis = “+1”
input_x_btn = “12”
input_menu_toggle_btn = “12”
input_select_btn = “16”
input_enable_hotkey_btn = “16”
input_y_btn = “15”
input_left_axis = “-0”
input_state_slot_decrease_axis = “-0”

how do i set up the second controllers?