[bzzb]

This is a great tutorial. I did it yesterday and everything is working, except one thing : I can’t configure the emulator exit button and the hotkey for mame4all (start + select).
I tried several configurations, including configuring the “retroarch.cfg” and “Xin-Mo Xin-Mo Dual Arcade.cfg” manually with:

input_start_btn = "8"
input_exit_emulator_btn = "8"

and

input_select_btn = "9"
input_enable_hotkey_btn = "9"

The emulator exit button (start+select) works well if a use a 8BitdoNES30Pro8BitdoNES30Pro controller. The 8BitdoNES30Pro8BitdoNES30Pro.cfg is exactly the same above, only the button numbers are diferente, of course.

– Yes, the buttons are working
– Yes, the buttons are mapped

Is there any other place that may be misconfigured ?
On the mame4all <TAB> menu, there is not mapping to a exit button. Should be one available there ?

Any help is appreciate.

[bzzb]

You probably need to make the configuration for the mama4all. The easy way is to connect a USB keyboard, enter in a game and hit the <TAB> key.
You will see a menu, select the 1st option and configure your controller. To setup a button, hit <ENTER> on the keyboard then the controller button. To remove/del a setup, hit <ENTER> on the option you want to remove then <TAB><TAB>.
If this does not work, may be you need to config your Xin-Mo : https://www.petrockblock.com/forums/topic/how-to-get-xin-mo-dual-arcade-working-with-retropie-easy-guide/

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