设置wifi信道

cat > /usr/bin/setwifi <<'EOF'
#!/bin/sh

printf "请输入 WiFi 信道（例如 36、40、44、48）："
read channel

uci set wireless.radio1.channel="$channel"
uci set wireless.radio1.htmode='HT20'
uci commit wireless

sleep 5
wifi reload
EOF

chmod +x /usr/bin/setwifi