你好， 我想咨询一下AM437X上的USB0休眠唤醒的问题。
AM437x,有两个usb接口，我用的是usb0接4G模块。现在的问题是系统唤醒起来后，usb0上的设备感觉像是复位了一次一样。
其实就想问下下面log的红色字体的出现是否正常？如果我接的是u盘，是否会将u盘断开一次再重新挂载？
LOG：
9008.422315] PM: Syncing filesystems ... done.
[ 9008.428362] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 9008.437807] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 9008.454342] PM: suspend of devices complete after 6.479 msecs
[ 9008.462624] PM: late suspend of devices complete after 2.460 msecs
[ 9008.471767] PM: noirq suspend of devices complete after 2.894 msecs
[ 9008.478148] PM: Successfully put all powerdomains to target state
[ 9008.496823] PM: noirq resume of devices complete after 18.576 msecs
[ 9008.506372] PM: early resume of devices complete after 2.667 msecs
[ 9008.576832] usb usb1: root hub lost power or was reset
[ 9008.582028] usb usb2: root hub lost power or was reset
[ 9008.932746] usb 1-1: reset high-speed USB device number 2 using xhci-hcd
[ 9009.104320] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 9009.112912] option 1-1:2.2: device disconnected
[ 9009.118142] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 9009.126414] option 1-1:2.3: device disconnected
[ 9009.131536] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 9009.139786] option 1-1:2.4: device disconnected
[ 9009.144969] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 9009.153206] option 1-1:2.5: device disconnected
[ 9009.158298] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 9009.166527] option 1-1:2.6: device disconnected
[ 9009.171943] PM: resume of devices complete after 659.259 msecs
[ 9009.180091] option 1-1:2.2: GSM modem (1-port) converter detected
[ 9009.187029] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 9009.194280] option 1-1:2.3: GSM modem (1-port) converter detected
[ 9009.200785] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 9009.207836] option 1-1:2.4: GSM modem (1-port) converter detected
[ 9009.214344] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 9009.221334] option 1-1:2.5: GSM modem (1-port) converter detected
[ 9009.227846] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB4
[ 9009.234864] option 1-1:2.6: GSM modem (1-port) converter detected
[ 9009.241366] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB5
望不吝赐教，谢谢！！！
