USB驱动问题：插入USB设备后发送事件的次数

[kshongmo]

android设备在机身旁边的usb插入时 会发送多次CONFIGED通知，还有多次CONNECTED通知
651.111175] PC detected
[ 651.345611] android_work: sent uevent USB_STATE=CONNECTED
[ 651.352996] android_work: sent uevent USB_STATE=DISCONNECTED
[ 651.429107] android_work: sent uevent USB_STATE=CONNECTED
[ 651.455627] android_usb gadget: high speed config #1: android
[ 651.464385] android_work: sent uevent USB_STATE=CONFIGURED
[ 655.198364] omap_hdq omap_hdq.0: TX wait elapsed
[ 655.331176] omap_hdq omap_hdq.0: TX wait elapsed
[ 655.463165] omap_hdq omap_hdq.0: TX wait elapsed
[ 655.596038] omap_hdq omap_hdq.0: TX wait elapsed
[ 655.729553] omap_hdq omap_hdq.0: TX wait elapsed
[ 655.862335] omap_hdq omap_hdq.0: TX wait elapsed
[ 655.995208] omap_hdq omap_hdq.0: TX wait elapsed
[ 656.128143] omap_hdq omap_hdq.0: TX wait elapsed
[ 656.215637] android_work: sent uevent USB_STATE=DISCONNECTED
[ 656.275207] android_work: sent uevent USB_STATE=CONNECTED
[ 656.283355] android_work: sent uevent USB_STATE=DISCONNECTED
[ 656.356811] android_work: sent uevent USB_STATE=CONNECTED
[ 656.825592] android_usb gadget: high speed config #1: android
[ 656.832855] android_work: sent uevent USB_STATE=CONFIGURED

即使把ADB关掉，也还是有两次的CONNECTED和CONFIGURED事件。请问这要怎么理解？

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