hostapd.conf

interface=wlp2s0
bssid=02:16:3e:24:31:30
driver=nl80211
ssid=<the one SSID>
hw_mode=a
country_code=DE
ieee80211n=1
ieee80211d=1
#channel=6
macaddr_acl=0
auth_algs=1           # 1=wpa, 2=wep, 3=both
wpa=2                 # WPA2 only
wpa_key_mgmt=WPA-PSK  
rsn_pairwise=CCMP TKIP
wpa_passphrase=<your passphrase here>
ignore_broadcast_ssid=0
#to be able to do wps, we add this:
eap_server=1
wps_state=2
ctrl_interface=/var/run/hostapd
ap_setup_locked=1
wps_pin_requests=/var/run/hostapd.pin-req
config_methods=label display push_button keypad


bss=wlp2s0_0
ssid=<the other SSID>
hw_mode=g
channel=6
macaddr_acl=0
auth_algs=1           # 1=wpa, 2=wep, 3=both
wpa=2                 # WPA2 only
wpa_key_mgmt=WPA-PSK  
rsn_pairwise=CCMP TKIP
ignore_broadcast_ssid=0
#this allows unique pre shared keys per MAC address
wpa_psk_file=/etc/hostapd-psk