WhyCan Forum(哇酷开发者社区)

# depmod
# modprobe libcomposite.ko
# modprobe usb_f_mass_storage.ko
# modprobe g_mass_storage.ko file=/dev/mmcblk0 stall=0 removable=1
[   18.194531] Mass Storage Function, version: 2009/09/11
[   18.199697] LUN: removable file: (no medium)
[   18.204398] LUN: removable file: /dev/mmcblk0
[   18.208765] Number of LUNs=1
[   18.213551] g_mass_storage gadget: Mass Storage Gadget, version: 2009/09/11
[   18.220530] g_mass_storage gadget: userspace failed to provide iSerialNumber
[   18.227692] g_mass_storage gadget: g_mass_storage ready

请问这是什么意思

这里插拔USB的时候，nano主板是不是要一直供电5V，即外接电源

[22:49:52:591]# modprobe libcomposite.ko
[22:49:52:592][   77.033133] libcomposite: exports duplicate symbol usb_os_desc_prepare_interf_dir (owned by kernel)
[22:49:52:598][   77.048711] libcomposite: exports duplicate symbol usb_os_desc_prepare_interf_dir (owned by kernel)
[22:49:52:623]modprobe: can't load module libcomposite.ko (libcomposite.ko): invalid module format
[22:50:47:285]# modprobe usb_f_mass_storage.ko
[22:50:47:285][  131.726289] libcomposite: exports duplicate symbol usb_os_desc_prepare_interf_dir (owned by kernel)
[22:50:47:294][  131.740730] libcomposite: exports duplicate symbol usb_os_desc_prepare_interf_dir (owned by kernel)
[22:50:47:326]modprobe: can't load module libcomposite (libcomposite.ko): invalid module format
[22:51:07:690]# modprobe g_mass_storage.ko file=/dev/mmcblk0p1 stall=0 removable=1
[22:51:07:690][  152.134244] libcomposite: exports duplicate symbol usb_os_desc_prepare_interf_dir (owned by kernel)
[22:51:07:702][  152.149863] libcomposite: exports duplicate symbol usb_os_desc_prepare_interf_dir (owned by kernel)
[22:51:07:730]modprobe: can't load module libcomposite (libcomposite.ko): invalid module format
[22:51:19:891]# [  164.325223] random: crng init done

udc-core: couldn't find an available UDC - added [g_mass_storage] to list of pending drivers

报错

这样会不会导致系统崩溃，因为可能要持续1s