https://asrock.com/MB/AMD/B450M%20Pro4/index.us.asp#Specification
- 2 x USB 2.0 Ports (Supports ESD Protection)
- 1 x USB 3.1 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
- 1 x USB 3.1 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection)
- 4 x USB 3.1 Gen1 Ports (Supports ESD Protection)
$ lsusb
Bus 004 Device 002: ID 13fe:6300 Kingston Technology Company Inc. USB
DISK 3.0
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 051d:0002 American Power Conversion
Uninterruptible Power Supply
Bus 003 Device 003: ID 04a9:190f Canon, Inc. CanoScan LiDE 220
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 0bc2:2321 Seagate RSS LLC Expansion Portable
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 1bcf:0005 Sunplus Innovation Technology Inc.
Optical Mouse
Bus 001 Device 005: ID 04d9:1503 Holtek Semiconductor, Inc. Keyboard
Bus 001 Device 004: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 003: ID 046d:082c Logitech, Inc. HD Webcam C615
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$ lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
|__ Port 2: Dev 3, If 0, Class=Vendor Specific Class, Driver=, 480M
|__ Port 4: Dev 4, If 0, Class=Human Interface Device,
Driver=usbfs, 1.5M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 10000M
|__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=uas, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 480M
|__ Port 5: Dev 3, If 0, Class=Audio, Driver=snd-usb-audio, 480M
|__ Port 5: Dev 3, If 1, Class=Audio, Driver=snd-usb-audio, 480M
|__ Port 5: Dev 3, If 2, Class=Video, Driver=uvcvideo, 480M
|__ Port 5: Dev 3, If 3, Class=Video, Driver=uvcvideo, 480M
|__ Port 6: Dev 4, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 6, If 0, Class=Human Interface Device,
Driver=usbhid, 1.5M
|__ Port 1: Dev 5, If 1, Class=Human Interface Device,
Driver=usbhid, 1.5M
|__ Port 1: Dev 5, If 0, Class=Human Interface Device,
Driver=usbhid, 1.5M
1. Does this mean the installer used the USB2 connections on the
motherboard even though it looks like USB3.1 Gen ones were available?
2. What is the number after the slash (4p) on xhci_hcd/4p?
3. Shouldn't "Linux Foundation 3.0 root hub" be "Linux Foundation 3.1
Gen 1 root hub"?
