测试bug 重现

USB functions configurable through configfs
[*] USB Webcam function

USB Gadget Drivers
< > Ethernet Gadget (with CDC Ethernet support)

Mass Storage Gadget
< > Serial Gadget (with CDC ACM and CDC OBEX support)

Multifunction Composite Gadget
[] RNDIS + CDC Serial + Storage configuration (NEW)
PHY Subsystem —->
<> HISI USB2 PHY Driver
[] Hisilicon USB related configuration —->
[] USB DRD0 Mode Select HOST
[ ] USB DRD0 Mode Select DEVICE
File systems —->
Pseudo filesystems —->
{*} Userspace-driven configuration filesystem

insmod libcomposite.ko
insmod usb_f_mass_storage.ko
insmod g_mass_storage.ko file=/dev/mmcblk1p1 luns=1 stall=0 removable=1

这样操作以后，终端没有报错，但是连PC没有反应，是什么原因啊？如何解决？
/usr/ko # sh usb_storage.sh start
Mass Storage Function, version: 2009/09/11
LUN: removable file: (no medium)
LUN: removable file: /dev/mmcblk1p1
Number of LUNs=1
g_mass_storage gadget: Mass Storage Gadget, version: 2009/09/11
g_mass_storage gadget: userspace failed to provide iSerialNumber
g_mass_storage gadget: g_mass_storage ready

USB functions configurable through configfs
[*] USB Webcam function