我已经连接了两个USB摄像头,一个是USB3,另一个是USB2,如果我运行lsusb -t,我可以看到端口连接树: /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd, If 0, Class=Miscellaneous Device, Driver=, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd
=01 MxPS=64 #Cfgs= 1S: Manufacturer=Linux 5.3.0-19-generic xhci-hcd=03 MxPS= 9 #Cfgs= 1S: Manufacturer=Linux 5.3.0-19-generic xhci-hcdcache line size of 64 is not supported
[ 0.991645] usb usb1: Ma
information will be missingCurrent status for hub 3 [1d6b:0003 Linux 5.8.0-50-generic xhci-hcdRx.DetectCurrent status for hub 2 [1d6b:0002 Linux 5.8.0-50-generic xhci-hcd