Required input [A] not mapped!

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This topic contains 3 replies, has 2 voices, and was last updated by Profile photo of plonka2000 plonka2000 3 years, 3 months ago.

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  • #5189
    Profile photo of plonka2000
    plonka2000
    Participant

    Hi all,

    I’ve got my Raspberry Pi setup using RetroPie with 2 USB SNES controllers.

    I’ve got main menu controls setup, but when I configure controls for a game, I receive the error “Required input [A] not mapped!” when trying to save the configuration.

    I’ve gone back and remapped all the buttons and directions. Been through it a dozen times and can see all the buttons work in the ‘TEST’ function.

    Does anyone know why this is happening?

    Thanks.

    #5279
    Profile photo of plonka2000
    plonka2000
    Participant

    Hi,

    I’m still experiencing this issue, I suspect that I’ll need to generate my own controller config file.

    Does anyone have any idea where I can find the config file and any idea of the default layout or recommended configuration?

    Thanks.

    #5290
    Profile photo of trimmtrabb
    trimmtrabb
    Participant

    the file you need to look at is retroarch.cfg located in home/pi/RetroPie/configs/all/retroarch.cfg

    To determine buttons run:

    sudo apt-get install joystick

    then

    jstest /dev/input/js0

    Here is the joypad section of my retroarch.cfg configured for my Xbox pad for example:

    input_player1_joypad_index = "0"
    input_player1_b_btn = "1"
    input_player1_y_btn = "3"
    input_player1_select_btn = "8"
    input_player1_start_btn = "9"
    input_player1_up_axis = "-5"
    input_player1_down_axis = "+5"
    input_player1_left_axis = "-4"
    input_player1_right_axis = "+4"
    input_player1_a_btn = "0"
    input_player1_x_btn = "2"
    input_player1_l_btn = "4"
    input_player1_r_btn = "5"
    input_player1_l2_btn = "6"
    input_player1_r2_btn = "7"
    input_player1_l3_btn = "11"
    input_player1_r3_btn = "12"
    input_player1_l_x_plus_axis = "+0"
    input_player1_l_x_minus_axis = "-0"
    input_player1_l_y_plus_axis = "+1"
    input_player1_l_y_minus_axis = "-1"
    input_player1_r_x_plus_axis = "+2"
    input_player1_r_x_minus_axis = "-2"
    input_player1_r_y_plus_axis = "+3"
    input_player1_r_y_minus_axis = "-3"
    
    input_enable_hotkey_btn = "8"
    input_exit_emulator_btn = "9"
    input_save_state_btn = "5"
    input_load_state_btn = "4"
    input_state_slot_increase_btn = "7"
    input_state_slot_decrease_btn ="6"
    input_menu_toggle_btn = "3"
    

    For player 2 controls copy player 1 controls and change ‘joypad_index’ to 1 and ‘input_player1’ to 2 e.g. :

    input_player2_joypad_index = "1"
    input_player2_b_btn = "1"
    input_player2_y_btn = "3"

    etc

    Here is the skeleton config for retroarch.cfg:
    https://github.com/libretro/RetroArch/blob/master/retroarch.cfg

    If you have found the solution to your problem please mark the topic as resolved.

    #5296
    Profile photo of plonka2000
    plonka2000
    Participant

    Thanks, this is really useful.

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