How many USB root hubs does the M4 have
Posted: Thu Feb 20, 2020 12:13 am
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user@nanopim4v2:~$ lsusb -t
/: Bus 07.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
/: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 4: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 3, If 2, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
user@nanopim4v2:~$