求助，AIO-3399J 开发板 USB OTG功能

wdy

将内核中USB OTG的功能打开， DTS配置文件中，修改了dr_mode为otg
使用 如下命令创建U盘文件，插上电脑后，没有任何反应，请教各位大侠，如何配置和使用 AIO-3399J的USB OTG功能
cd /sys/kernel/config/usb_gadget

mkdir g.1/functions/mass_storage.0 -p
echo "/dev/sda" > g.1/functions/mass_storage.0/lun.0/file

mkdir g.1/strings/0x409
mkdir -p g.1/configs/c.1/strings/0x409

echo 0xa4a5 > g.1/idProduct
echo 0x0525 > g.1/idVendor

echo 12345 > g.1/strings/0x409/serialnumber
echo ntzyz > g.1/strings/0x409/manufacturer
echo "usb gadget" > g.1/strings/0x409/product

echo "cnf1" > g.1/configs/c.1/strings/0x409/configuration

ln -s g.1/functions/mass_storage.0 g.1/configs/c.1

echo fe800000.dwc3 > g.1/UDC

leung先森

http://wiki.t-firefly.com/zh_CN/AIO-3399J/adb_use.html