Luckfox Forums

Posted: **2025-12-30 3:20**

请问一些Luckfox Pico Pro Max使用sd卡启动，如何移植umptrd，
#!/bin/sh
set -e
LOG=/tmp/usb_mtp_adb.log
exec > >(tee -a $LOG) 2>&1

echo "=== USB MTP + ADB FunctionFS Gadget ==="

# Configfs base
CFGFS=/sys/kernel/config
GADGET=g1
USB_VID=0x2207
USB_PID=0x0011

# Paths
G=${CFGFS}/usb_gadget/${GADGET}
ADB_FFS=/dev/usb-ffs/adb
MTP_FFS=/dev/usb-ffs/mtp
UMTPD=/mnt/umtprd

# Clean existing
echo "Cleaning previous gadget (if exists)"
if [ -d $G ]; then
echo none > $G/UDC || true
sleep 1
rm -rf $G
fi

# Mount configfs
mount | grep -q configfs || {
echo "Mounting configfs..."
mount -t configfs none $CFGFS
}

# Create gadget
echo "Creating gadget"
mkdir -p $G
echo $USB_VID > $G/idVendor
echo $USB_PID > $G/idProduct
echo 0x0200 > $G/bcdUSB
echo 0x0100 > $G/bcdDevice

# Strings
mkdir -p $G/strings/0x409
echo "1234567890ABCDEF" > $G/strings/0x409/serialnumber
echo "rockchip" > $G/strings/0x409/manufacturer
echo "MTP+ADB Gadget" > $G/strings/0x409/product

# Create config
mkdir -p $G/configs/c.1
mkdir -p $G/configs/c.1/strings/0x409
echo "MTP+ADB config" > $G/configs/c.1/strings/0x409/configuration
echo 250 > $G/configs/c.1/MaxPower

# Create FunctionFS functions
echo "Setting up FunctionFS functions"
mkdir -p $G/functions/ffs.adb
mkdir -p $G/functions/ffs.mtp

# Link
ln -s $G/functions/ffs.adb $G/configs/c.1/
ln -s $G/functions/ffs.mtp $G/configs/c.1/

# Ensure ffs dirs exist
mkdir -p /dev/usb-ffs
mkdir -p $ADB_FFS
mkdir -p $MTP_FFS

# Mount FunctionFS
echo "Mounting FunctionFS for adb and mtp"
mount -t functionfs adb $ADB_FFS || true
mount -t functionfs mtp $MTP_FFS || true

# Start daemons

echo "Starting adbd..."
if ! command -v adbd >/dev/null; then
echo "WARNING: adbd not found!"
else
adbd &
fi

echo "Starting uMTP-Responder..."
if [ ! -x "$UMTPD" ]; then
echo "ERROR: uMTP-Responder binary not found at $UMTPD"
exit 1
fi
$UMTPD &

sleep 1

# Bind UDC
UDC=$(ls /sys/class/udc | head -n1)
echo "Binding UDC: $UDC"
echo $UDC > $G/UDC

echo "=== USB MTP+ADB ready ==="
以上是我的脚本配置，开启了adb，但是电脑不显示mtp设备。

Posted: **2026-01-04 10:55**

您好，USB 在设备模式下模拟高速设备（UVC UAC UMS MTP）的时候会占用高速节点, 相关细节请自行查阅资料或源码，ADB和 MTP 可能因为节点冲突无法同时使用

开启 MTP 功能示例操作如下：
1 SDK 下执行 ./build.sh buildrootconfig ，打开 BR2_PACKAGE_UMTPRD
2 重新打包 rootfs.img 并烧录
3 进入系统将默认配置 gadgetfs 的启动脚本 S50usbdevice S99usb0config删除或者移出 /etc/init.d 目录
4 重启
5 构建 umtprd 配置文件

Code: Select all

mkdir -p /etc/umtprd
vi /etc/umtprd/umtprd.conf

/etc/umtprd/umtprd.conf

Code: Select all

loop_on_disconnect 1
#将 /userdata 设置为共享目录
storage "/userdata"      "share folder" "rw"

manufacturer "MyCompany"  
product "MyMTP" 
serial "01234567"
firmware_version "Rev A"  
interface "MTP" 


usb_vendor_id  0x1D6B # Linux Foundation
usb_product_id 0x0100 # PTP Gadget                                           
usb_class 0x6         # Image                                
usb_subclass 0x1      # Still Imaging device                 
usb_protocol 0x1      # 

usb_dev_version 0x3008 


usb_functionfs_mode 0x1

usb_dev_path   "/dev/ffs-mtp/ep0"
usb_epin_path  "/dev/ffs-mtp/ep1"                 
usb_epout_path "/dev/ffs-mtp/ep2"
usb_epint_path "/dev/ffs-mtp/ep3"

usb_max_packet_size 0x200

6 配置 gadgetfs

Code: Select all

mount -t configfs none /sys/kernel/config
cd /sys/kernel/config/usb_gadget
mkdir g1
cd g1

echo 0x1d6b > idVendor 
echo 0x0100 > idProduct


mkdir strings/0x409
echo "01234567" > strings/0x409/serialnumber
echo "MyCompany" > strings/0x409/manufacturer
echo "MyMTP"     > strings/0x409/product

mkdir configs/c.1
mkdir functions/ffs.mtp
ln -s functions/ffs.mtp configs/c.1


mkdir -p /dev/ffs-mtp
mount -t functionfs mtp /dev/ffs-mtp

7 启动 umtprd

Code: Select all

umtprd &

8 启动 UDC

Code: Select all

ls /sys/class/udc/ > /sys/kernel/config/usb_gadget/g1/UDC

Luckfox Forums

Luckfox Pico Pro Max如何使用sd卡镜像使用umtprd？

Luckfox Pico Pro Max如何使用sd卡镜像使用umtprd？

Re: Luckfox Pico Pro Max如何使用sd卡镜像使用umtprd？