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--- en:bpi-r3:wlan [2022/10/02 13:38] – [Wifi] frank
+++ en:bpi-r3:wlan [2023/06/08 17:06] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== WLAN ======
+see too (especially for hostapd config):
+[[..:bpi-r2:wlan]]
+  apt install hostapd iw wireless-regdb crda dnsmasq rfkill
+  iw reg set DE
+WiFi connectors are U.FL
+without rfkill hostapd does not start and prints this error:
+  Feb 12 09:56:39 bpi-r3 hostapd[2764]: wlan1: IEEE 802.11 Configured channel (40) not found from the channel list of current mode (2) IEEE 802.11a
+  Feb 12 09:56:39 bpi-r3 hostapd[2764]: wlan1: IEEE 802.11 Hardware does not support configured channel
+and iw shows "(no IR)" after all channels
+ubuntu does not have the crda tool and so cfg80211 needs the regulatory.db
+it can be installed with wireless-regdb or copy  regulatory.db and regulatory.db.p7s from https://mirrors.edge.kernel.org/pub/software/network/wireless-regdb/
+to load the file cfg80211 needs to be compiled as module and it needs the CONFIG_CFG80211_WEXT option (else you get the error "nl80211 not found" error when using iw).
 ===== BPI-R3 internal wifi =====
+  modprobe mt7915e
 <code>
@@ Line 771: / Line 793: @@
                 * [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
 </code>
+==== hostapd-config ====
+g4-config (wlan0):
+<code>
+#ctrl_interface=/var/run/hostapd
+#ctrl_interface_group=0 # These 2 are just parameters so that the hostap daemon
+runs.
+interface=wlan0
+driver=nl80211
+ssid=r3_AP0
+hw_mode=g
+#channel=2
+#channel=4
+channel=1
+#macaddr_acl=0
+auth_algs=1
+#ignore_broadcast_ssid=0
+wpa=2
+wmm_enabled=1
+wpa_passphrase=12345678
+wpa_key_mgmt=WPA-PSK
+wpa_pairwise=TKIP
+rsn_pairwise=CCMP
+</code>
+g-config (wlan1):
+<code>
+ctrl_interface=/var/run/hostapd_2
+#ctrl_interface_group=0 # These 2 are just parameters so that the hostap daemon
+runs.
+interface=wlan1
+driver=nl80211
+ssid=r3_AP1
+#2.4G
+hw_mode=g
+channel=1
+#5G-Support
+country_code=DE
+ieee80211n=1
+ieee80211d=1
+hw_mode=a
+#34-50 step 2
+channel=36
+#channel=149
+ieee80211h=1
+require_vht=1
+ht_capab=[GF][HT40+][SHORT-GI-20][SHORT-GI-40][RX-STBC1][DSSS_CCK-40]
+vht_oper_chwidth=1
+vht_capab=[SHORT-GI-80][RX-STBC-1][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN]
+#42 would be the centered frequency center channel number for 36 primary
+#channel only if this were a 80 MHz channel, so the combination here is
+#invalid. You would either need to change this to use vht_oper_chwidth=1
+#or set vht_oper_centr_freq_seg0_idx=0 if you want to use a 40 MHz
+#channel.
+#for ch36:
+vht_oper_centr_freq_seg0_idx=42
+#for ch149:
+#vht_oper_centr_freq_seg0_idx=155
+#channel=60
+ieee80211ac=1
+wmm_enabled=1
+#security
+wpa=2
+wpa_passphrase=12345678
+wpa_key_mgmt=WPA-PSK
+wpa_pairwise=TKIP CCMP
+#ignore_broadcast_ssid=0
+auth_algs=1
+#rsn_pairwise=CCMP
+#macaddr_acl=0
+#accept_mac_file=/etc/hostapd/acl_accept
+#deny_mac_file=/etc/hostapd/acl_deny
+#macaddr_acl=1
+#accept_mac_file=/etc/hostapd/hostapd.allow
+</code>
+running hostapd:
+  hostapd -d hostapd_wlan0.conf &> /tmp/hostapd_wlan0.log &
+  hostapd -d hostapd_wlan1.conf &> /tmp/hostapd_wlan1.log &
+Leds are not yet working properly (2g4 is mapped by mt76 driver and can be switched on manually but not off,5g led is still missing)
+=== Virtual SSID ===
+https://medium.com/@renaudcerrato/how-to-setup-a-virtual-ssid-with-hostapd-804c13c9a3c2