Controller input mapping works in Emulation Station but not in emulators

[mcpat]

@mitu
yes it's solved by now, but I am interested in how to solve it for the future and what is causing this +2 shift. If you are not willing to further support, I fully unterstand. It's more my personal interest to find and solve the bug so others don't have this problems.
I was googling a while to find it out, even I am not a beginner (in linux).

[mitu]

@mcpat said in Controller input mapping works in Emulation Station but not in emulators:

If you are not willing to further support, I fully unterstand.

I would if I could :).

[mcpat]

@mitu
I solved the problem. It was in the source code of hid-nx....

see here. It was the BTN_0 and BTN_1

I modified the code like this for both controllers and they are now working correctly!

Can be found starting here

static const struct nx_con_button_mapping gencon_button_mappings[] = {
	{ BTN_SOUTH,	NX_CON_BTN_A,		},
	{ BTN_EAST,	NX_CON_BTN_B,		},
	{ BTN_WEST,	NX_CON_BTN_R,		},
	{ BTN_DPAD_LEFT,	NX_CON_BTN_X,		},
	{ BTN_DPAD_UP,		NX_CON_BTN_Y,		},
	{ BTN_DPAD_RIGHT,	NX_CON_BTN_L,		},
	{ BTN_THUMBL,	NX_CON_BTN_ZR,		},
	{ BTN_START,	NX_CON_BTN_PLUS,	},
	{ BTN_SELECT,	NX_CON_BTN_HOME,	},
	{ BTN_MODE,	NX_CON_BTN_CAP,		},
	{ /* sentinel */ },
};

/*
 * N64's C buttons get assigned to d-pad directions and registered as buttons.
 */
static const struct nx_con_button_mapping n64con_button_mappings[] = {
	{ BTN_A,		NX_CON_BTN_A,		},
	{ BTN_B,		NX_CON_BTN_B,		},
	{ BTN_Z,		NX_CON_BTN_ZL,		},
	{ BTN_TL,		NX_CON_BTN_L,		},
	{ BTN_TR,		NX_CON_BTN_R,		},
	{ BTN_TR2,		NX_CON_BTN_LSTICK,	},
	{ BTN_START,		NX_CON_BTN_PLUS,	},
	{ BTN_DPAD_UP,		NX_CON_BTN_Y,		},
	{ BTN_DPAD_DOWN,	NX_CON_BTN_ZR,		},
	{ BTN_DPAD_LEFT,	NX_CON_BTN_X,		},
	{ BTN_DPAD_RIGHT,	NX_CON_BTN_MINUS,	},
	{ BTN_THUMBL,		NX_CON_BTN_HOME,	},
	{ BTN_MODE,		NX_CON_BTN_CAP,		},
	{ /* sentinel */ },
};