On Tue, Jan 11, 2022 at 07:56:53PM -0500, James wrote: > $ lsusb -tv > /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M > ID 1d6b:0003 Linux Foundation 3.0 root hub > /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M > ID 1d6b:0002 Linux Foundation 2.0 root hub > /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M > ID 1d6b:0003 Linux Foundation 3.0 root hub > /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 480M > ID 1d6b:0002 Linux Foundation 2.0 root hub > |__ Port 5: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, > 1.5M > ID 04d9:1503 Holtek Semiconductor, Inc. Keyboard > |__ Port 5: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, > 1.5M > ID 04d9:1503 Holtek Semiconductor, Inc. Keyboard > |__ Port 6: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, > 1.5M > ID 30fa:0400 > > With my USB3 drive plugged in to the USB-C port which is supposed to be > USB3.1. > https://asrock.com/MB/AMD/B450M%20Pro4/index.us.asp > > $ lsusb -tv > /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M > ID 1d6b:0003 Linux Foundation 3.0 root hub > /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M > ID 1d6b:0002 Linux Foundation 2.0 root hub > /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M > ID 1d6b:0003 Linux Foundation 3.0 root hub > /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 480M > ID 1d6b:0002 Linux Foundation 2.0 root hub > |__ Port 1: Dev 4, If 0, Class=Mass Storage, Driver=uas, 480M > ID 0bc2:2321 Seagate RSS LLC Expansion Portable > |__ Port 5: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, > 1.5M > ID 04d9:1503 Holtek Semiconductor, Inc. Keyboard > |__ Port 5: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, > 1.5M > ID 04d9:1503 Holtek Semiconductor, Inc. Keyboard > |__ Port 6: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, > 1.5M > ID 30fa:0400 > > > Why are the hubs listed as Linux Foundation 3.0 root hubs and not 3.1 root > hubs? Because your devices do not advertise themselves as a USB 3.1 root hub. Perhaps the documentation is incorrect? thanks, greg k-h
