#WPS stuff
# Enable control interface for PBC/PIN entry
wpa_psk_file=/etc/hostapd/hostapd.psk
ctrl_interface=/var/run/hostapd
eap_server=1
wps_state=2
ap_setup_locked=1
wps_pin_requests=/var/run/hostapd.pin-req
config_methods=label display push_button keypad
#WPS model info stuff change to suit your needs
device_name=Your Device Name
manufacturer=Company
model_name=Model
model_number=ModelNum
touch /etc/hostapd/hostapd.psk
systemctl restart hostapd
hostapd_cli wps_pbc
Then you should get this and your device should be able to connect now.
Once you see the below, the device has 2 minutes to connect.
Selected interface 'wlan0'
OK