openwrt，默认wifi功能是关闭的，可在web管理界面进行打开，也可修改源码，默认开启

• 进入目录package/kernel/mac80211/files/lib/wifi/mac80211.sh

  set wireless.radio${devidx}.disabled=1

  修改为：

  set wireless.radio${devidx}.disabled=0

detect_mac80211() {
	devidx=0
	config_load wireless
	while :; do
		config_get type "radio$devidx" type
		[ -n "$type" ] || break
		devidx=$(($devidx + 1))
	done

	for _dev in /sys/class/ieee80211/*; do
		[ -e "$_dev" ] || continue

		dev="${_dev##*/}"

		found=0
		config_foreach check_mac80211_device wifi-device
		[ "$found" -gt 0 ] && continue

		mode_band="g"
		channel="11"
		htmode=""
		ht_capab=""

		iw phy "$dev" info | grep -q 'Capabilities:' && htmode=HT20

		iw phy "$dev" info | grep -q '5180 MHz' && {
			mode_band="a"
			channel="36"
			iw phy "$dev" info | grep -q 'VHT Capabilities' && htmode="VHT80"
		}

		[ -n "$htmode" ] && ht_capab="set wireless.radio${devidx}.htmode=$htmode"

		path="$(mac80211_phy_to_path "$dev")"
		if [ -n "$path" ]; then
			dev_id="set wireless.radio${devidx}.path='$path'"
		else
			dev_id="set wireless.radio${devidx}.macaddr=$(cat /sys/class/ieee80211/${dev}/macaddress)"
		fi

		uci -q batch <<-EOF
			set wireless.radio${devidx}=wifi-device
			set wireless.radio${devidx}.type=mac80211
			set wireless.radio${devidx}.channel=${channel}
			set wireless.radio${devidx}.hwmode=11${mode_band}
			${dev_id}
			${ht_capab}
			set wireless.radio${devidx}.disabled=0

			set wireless.default_radio${devidx}=wifi-iface
			set wireless.default_radio${devidx}.device=radio${devidx}
			set wireless.default_radio${devidx}.network=lan
			set wireless.default_radio${devidx}.mode=ap
			set wireless.default_radio${devidx}.ssid=OpenWrt
			set wireless.default_radio${devidx}.encryption=none
EOF
		uci -q commit wireless

		devidx=$(($devidx + 1))
	done
}

以上可看出：
无线模式：AP
SSID:OpenWrt
加密方式：none

仅此记录