Brief explanation for the new wifi interface

en/network-settings.md

@@ -5,6 +5,59 @@ A collection of practical networking settings
 ---------------------------------------------
 
 
+### /etc/network/netadapter
+
+Example how to convert wlan0 interface settings to the new wifi configuration script:
+
+```diff
+auto wlan0
+iface wlan0 inet dhcp
++   pre-up devmem 0x100C0080 32 0x530
++   pre-up echo 7 > /sys/class/gpio/export
++   pre-up echo out > /sys/class/gpio/gpio7/direction
++   pre-up echo 0 > /sys/class/gpio/gpio7/value
++   pre-up modprobe mt7601u
+    pre-up wpa_passphrase "SSID" "password" >/tmp/wpa_supplicant.conf
+    pre-up sed -i '2i \\tscan_ssid=1' /tmp/wpa_supplicant.conf
+    pre-up sleep 3
+    pre-up wpa_supplicant -B -D nl80211 -i wlan0 -c/tmp/wpa_supplicant.conf
+    post-down killall -q wpa_supplicant
+!   post-down echo 1 > /sys/class/gpio/gpio7/value
+!   post-down echo 7 > /sys/class/gpio/unexport
+```
+```diff
+# HI3516EV300 CamHi
+if lsusb | grep -q 7601; then
+	if [ $1 = "startup" ]; then
++		devmem 0x100C0080 32 0x530
++		echo 7 > /sys/class/gpio/export
++		echo out > /sys/class/gpio/gpio7/direction
++		echo 0 > /sys/class/gpio/gpio7/value
++		modprobe mt7601u
+	elif [ $1 = "shutdown" ]; then
+!		echo 1 > /sys/class/gpio/gpio7/value
+!		echo 7 > /sys/class/gpio/unexport
+	fi
+	exit 0
+fi
+```
+
+
+### Wireless credentials
+
+For the initial setup, the device will create an access point with the name OpenIPC and password 12345678.
+
+The accesspoint will be automatically closed after 5 minutes to prevent misuse.
+
+After connecting to the device, credentials can be changed with a builtin script:
+
+```
+wireless setup [SSID] [PASS]
+wireless connect
+wireless show
+```
+
+
 ### ETH0 | DHCP for all platforms
 
 ```