diff --git a/device/generic/br_overlay/common/etc/run_usb.sh b/device/generic/br_overlay/common/etc/run_usb.sh
index 760c70284..91e1f5cd0 100755
--- a/device/generic/br_overlay/common/etc/run_usb.sh
+++ b/device/generic/br_overlay/common/etc/run_usb.sh
@@ -5,12 +5,14 @@ MSC_PID=0x1008
 RNDIS_PID=0x1009
 UVC_PID=0x100A
 UAC_PID=0x100B
+NCM_PID=0x100C
 ADB_VID=0x18D1
 ADB_PID=0x4EE0
 ADB_PID_M1=0x4EE2
 ADB_PID_M2=0x4EE4
 MANUFACTURER="Cvitek"
 PRODUCT="USB Com Port"
+PRODUCT_NCM="NCM"
 PRODUCT_RNDIS="RNDIS"
 PRODUCT_UVC="UVC"
 PRODUCT_UAC="UAC"
@@ -39,6 +41,11 @@ case "$2" in
   cvg)
 	CLASS=cvg
 	;;
+  ncm)
+	CLASS=ncm
+	PID=$NCM_PID
+	PRODUCT=$PRODUCT_NCM
+	;;
   rndis)
 	CLASS=rndis
 	PID=$RNDIS_PID
@@ -62,7 +69,7 @@ case "$2" in
 	;;
   *)
 	if [ "$1" = "probe" ] ; then
-	  echo "Usage: $0 probe {acm|msc|cvg|rndis|uvc|uac1|adb}"
+	  echo "Usage: $0 probe {acm|msc|cvg|ncm|rndis|uvc|uac1|adb}"
 	  exit 1
 	fi
 esac
@@ -86,6 +93,11 @@ res_check() {
   EP_IN=$(($EP_IN+$TMP_NUM))
   EP_OUT=$(($EP_OUT+$TMP_NUM))
   INTF_NUM=$(($INTF_NUM+$TMP_NUM))
+  TMP_NUM=$(find $CVI_GADGET/functions/ -name "ncm*" | wc -l)
+  TMP_NUM=$(($TMP_NUM * 2))
+  EP_IN=$(($EP_IN+$TMP_NUM))
+  EP_OUT=$(($EP_OUT+$TMP_NUM))
+  INTF_NUM=$(($INTF_NUM+$TMP_NUM))
   TMP_NUM=$(find $CVI_GADGET/functions/ -name "rndis*" | wc -l)
   EP_OUT=$(($EP_OUT+$TMP_NUM))
   TMP_NUM=$(($TMP_NUM * 2))
@@ -117,6 +129,10 @@ res_check() {
     EP_IN=$(($EP_IN+1))
     EP_OUT=$(($EP_OUT+1))
   fi
+  if [ "$CLASS" = "ncm" ] ; then
+    EP_IN=$(($EP_IN+1))
+    EP_OUT=$(($EP_OUT+1))
+  fi
   if [ "$CLASS" = "rndis" ] ; then
     EP_IN=$(($EP_IN+2))
     EP_OUT=$(($EP_OUT+1))
@@ -197,6 +213,9 @@ probe() {
   if [ "$CLASS" = "mass_storage" ] ; then
     echo $MSC_FILE >$CVI_GADGET/functions/$CLASS.usb$FUNC_NUM/lun.0/file
   fi
+  if [ "$CLASS" = "ncm" ] ; then
+    ln -s $CVI_FUNC/ncm.usb$FUNC_NUM $CVI_GADGET/configs/c.1
+  fi
   if [ "$CLASS" = "rndis" ] ; then
     #OS STRING
     echo 1 >$CVI_GADGET/os_desc/use
@@ -284,7 +303,7 @@ case "$1" in
 	ls /sys/class/udc/ >$CVI_GADGET/UDC
 	;;
   *)
-	echo "Usage: $0 probe {acm|msc|cvg|uvc|uac1} {file (msc)}"
+	echo "Usage: $0 probe {acm|msc|cvg|ncm|uvc|uac1} {file (msc)}"
 	echo "Usage: $0 start"
 	echo "Usage: $0 stop"
 	exit 1
diff --git a/device/generic/rootfs_overlay/common/mnt/system/usb.sh b/device/generic/rootfs_overlay/common/mnt/system/usb.sh
index 3827f5be8..f947e921e 120000
--- a/device/generic/rootfs_overlay/common/mnt/system/usb.sh
+++ b/device/generic/rootfs_overlay/common/mnt/system/usb.sh
@@ -1 +1 @@
-usb-rndis.sh
\ No newline at end of file
+usb-ncm.sh
\ No newline at end of file
diff --git a/device/milkv-duo256m-glibc-arm64-sd/overlay/mnt/system/usb-ncm.sh b/device/milkv-duo256m-glibc-arm64-sd/overlay/mnt/system/usb-ncm.sh
new file mode 100755
index 000000000..ec5be6625
--- /dev/null
+++ b/device/milkv-duo256m-glibc-arm64-sd/overlay/mnt/system/usb-ncm.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+/etc/uhubon.sh device >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh probe ncm >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh start ncm >> /tmp/ncm.log 2>&1
+
+sleep 0.5
+ifconfig usb0 192.168.42.1
+
+count=`ps | grep dnsmasq | grep -v grep | wc -l`
+if [ ${count} -lt 1 ] ;then
+  echo "/etc/init.d/S80dnsmasq start" >> /tmp/ncm.log 2>&1
+  /etc/init.d/S80dnsmasq start >> /tmp/ncm.log 2>&1
+fi
+
diff --git a/device/milkv-duo256m-musl-riscv64-sd/overlay/mnt/system/usb-ncm.sh b/device/milkv-duo256m-musl-riscv64-sd/overlay/mnt/system/usb-ncm.sh
new file mode 100755
index 000000000..ec5be6625
--- /dev/null
+++ b/device/milkv-duo256m-musl-riscv64-sd/overlay/mnt/system/usb-ncm.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+/etc/uhubon.sh device >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh probe ncm >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh start ncm >> /tmp/ncm.log 2>&1
+
+sleep 0.5
+ifconfig usb0 192.168.42.1
+
+count=`ps | grep dnsmasq | grep -v grep | wc -l`
+if [ ${count} -lt 1 ] ;then
+  echo "/etc/init.d/S80dnsmasq start" >> /tmp/ncm.log 2>&1
+  /etc/init.d/S80dnsmasq start >> /tmp/ncm.log 2>&1
+fi
+
diff --git a/device/milkv-duos-glibc-arm64-sd/overlay/mnt/system/usb-ncm.sh b/device/milkv-duos-glibc-arm64-sd/overlay/mnt/system/usb-ncm.sh
new file mode 100755
index 000000000..bf9193936
--- /dev/null
+++ b/device/milkv-duos-glibc-arm64-sd/overlay/mnt/system/usb-ncm.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+usb_en=453
+usb_select=510
+
+function set_gpio()
+{
+	local gpio_num=$1
+	local gpio_val=$2
+	local gpio_path="/sys/class/gpio/gpio${gpio_num}"
+
+	if test -d ${gpio_path}; then
+		echo "GPIO ${gpio_num} already exported" >> /tmp/ncm.log 2>&1
+	else
+		echo ${gpio_num} > /sys/class/gpio/export
+	fi
+
+	echo out > ${gpio_path}/direction
+	sleep 0.1
+	echo ${gpio_val} > ${gpio_path}/value
+}
+
+set_gpio ${usb_en} 0
+sleep 0.5
+set_gpio ${usb_select} 0
+sleep 0.5
+
+/etc/uhubon.sh device >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh probe ncm >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh start ncm >> /tmp/ncm.log 2>&1
+
+sleep 0.5
+ifconfig usb0 192.168.42.1
+
+count=`ps | grep dnsmasq | grep -v grep | wc -l`
+if [ ${count} -lt 1 ] ;then
+  echo "/etc/init.d/S80dnsmasq start" >> /tmp/ncm.log 2>&1
+  /etc/init.d/S80dnsmasq start >> /tmp/ncm.log 2>&1
+fi
+
diff --git a/device/milkv-duos-musl-riscv64-sd/overlay/mnt/system/usb-ncm.sh b/device/milkv-duos-musl-riscv64-sd/overlay/mnt/system/usb-ncm.sh
new file mode 100755
index 000000000..bf9193936
--- /dev/null
+++ b/device/milkv-duos-musl-riscv64-sd/overlay/mnt/system/usb-ncm.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+usb_en=453
+usb_select=510
+
+function set_gpio()
+{
+	local gpio_num=$1
+	local gpio_val=$2
+	local gpio_path="/sys/class/gpio/gpio${gpio_num}"
+
+	if test -d ${gpio_path}; then
+		echo "GPIO ${gpio_num} already exported" >> /tmp/ncm.log 2>&1
+	else
+		echo ${gpio_num} > /sys/class/gpio/export
+	fi
+
+	echo out > ${gpio_path}/direction
+	sleep 0.1
+	echo ${gpio_val} > ${gpio_path}/value
+}
+
+set_gpio ${usb_en} 0
+sleep 0.5
+set_gpio ${usb_select} 0
+sleep 0.5
+
+/etc/uhubon.sh device >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh probe ncm >> /tmp/ncm.log 2>&1
+/etc/run_usb.sh start ncm >> /tmp/ncm.log 2>&1
+
+sleep 0.5
+ifconfig usb0 192.168.42.1
+
+count=`ps | grep dnsmasq | grep -v grep | wc -l`
+if [ ${count} -lt 1 ] ;then
+  echo "/etc/init.d/S80dnsmasq start" >> /tmp/ncm.log 2>&1
+  /etc/init.d/S80dnsmasq start >> /tmp/ncm.log 2>&1
+fi
+