How can I read the status of wps gpio pin 65 on EA8500

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how can I read the status of wps gpio pin 65 on EA8500

I found in the qcom-ipq8064-ea8500.dts file this part:

wps {
			label = "wps";
			gpios = <&qcom_pinmux 65 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_WPS_BUTTON>;
		};

I thought I could use something like this explained in the tutorial:
https://openwrt.org/docs/techref/hardware/port.gpio

But I can't find the defined gpio pin in /sys/class/gpio
If I try to create it I get the message

echo "65" > /sys/class/gpio/export
ash: write error: Resource busy

I found the file /etc/rc.button/wps which I edited and was able to write something into a file when I press the wps button successfully.

#!/bin/sh

[ "${ACTION}" = "pressed" -a "$BUTTON" = "wps" ]

{

echo "WPS pressed $(date) $BUTTON" >> /tmp/Button

}

[ "${ACTION}" = "releases" ] -a "$BUTTON" = "wps" {

echo "WPS released $(date) $BUTTON" >> /tmp/Button

}
return 0

Of course I could use my created file but I think this info should already be somewhere stored and I just need to find it.

Is there a file where I can just readout the status of pin65 called wps?

Am I missing here something?

Thanks for pointing me in the right direction.