F5F Stay Refreshed Software Operating Systems QEMU/KVM USB hub device

QEMU/KVM USB hub device

QEMU/KVM USB hub device

M
Mineblockx
Junior Member
Find
12
03-01-2016, 03:03 AM
#1
You have two USB hubs listed as USB host devices in QEMU/KVM, even though you only have one physical hub. This might happen if the system is trying to recognize multiple hubs or if there are configuration settings enabling them. Check your device list and ensure only one active hub is selected.
Reply
Reply
M
Mineblockx
03-01-2016, 03:03 AM #1

You have two USB hubs listed as USB host devices in QEMU/KVM, even though you only have one physical hub. This might happen if the system is trying to recognize multiple hubs or if there are configuration settings enabling them. Check your device list and ensure only one active hub is selected.

Reply
Reply
S
Sussu
Senior Member
Find
708
03-07-2016, 10:06 AM
#2
Since your USB hub was built this way, its firmware must support it.
Reply
Reply
S
Sussu
03-07-2016, 10:06 AM #2

Since your USB hub was built this way, its firmware must support it.

Reply
Reply
J
JeeLeng
Junior Member
Find
7
03-11-2016, 08:20 AM
#3
I think the kernel interprets a USB 3.0 port as two distinct connections. In your list, "High-speed" refers to USB 2.0, and "SuperSpeed" means 3.0. These standards use different signal paths and controllers, even though they occupy the same physical slots. Although libvirt and QEMU treat them separately, it seems that the hardware is designed to clearly indicate both digital USB ports.
Reply
Reply
J
JeeLeng
03-11-2016, 08:20 AM #3

I think the kernel interprets a USB 3.0 port as two distinct connections. In your list, "High-speed" refers to USB 2.0, and "SuperSpeed" means 3.0. These standards use different signal paths and controllers, even though they occupy the same physical slots. Although libvirt and QEMU treat them separately, it seems that the hardware is designed to clearly indicate both digital USB ports.

Reply
Reply