Adding more buttons via overlay

[mmelv]

Hello,

I am trying to use a membrane keypad that has 5 buttons. It's not a matrix keyboard so I was just going to add 5 buttons into whatever gpio pins I can spare, but I'm having trouble with the overlay file. It says the button needs a "compatible" property, but once I add that it gives me a different error. I've been playing whack-a-mole with errors for a while and not sure what I'm missing.

[WesC]

try an overlay with this

/ {
	buttons {
		compatible = "gpio-keys";
		button4: button_4 {
			gpios = <&gpio0 28 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "Push button switch 4";
			zephyr,code = <INPUT_KEY_4>;
		};
	};


	/* These aliases are provided for compatibility with samples */
	aliases {
		sw4 = &button4;
	};
};

[mmelv]

/{

    custom_buttons {

        compatible = "gpio-leds";

        button4: button_4 {

            gpios = <&gpio0 21 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>; //Pull down is very important

            label = "Custum button 4";

        };

        button5: button_5 {

            gpios = <&gpio0 17 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>; //Pull down is very important

            label = "Custom button 5";

        };

        button6: button_6 {

            gpios = <&gpio0 24 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>; //Pull down is very important

            label = "Custom button 6";

        };

    };

};

Thanks, I was able to get this to work yesterday. I think the problem was I didn't have the /{ for the root. Also I needed to set it to have GPIO_PULL_DOWN instead of GPIO_PULL_UP.