O USB 3.0 usa um driver diferente do USB 2.0 (ou 1.0). Eu acho que o driver 3.0 foi chamado xhci --- e sua impressão diz driver = ehci, que era o driver 2.0, mas não me lembro do driver uhci.
O seguinte significa que tenho USB 3.0 no meu PC?
*-usb:0
description: USB Controller
product: 82801I (ICH9 Family) USB UHCI Controller #4
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
***version: 03***
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:16 ioport:40e0(size=32)
*-usb:1
description: USB Controller
product: 82801I (ICH9 Family) USB UHCI Controller #5
vendor: Intel Corporation
physical id: 1a.1
bus info: pci@0000:00:1a.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:21 ioport:40c0(size=32)
*-usb:2
description: USB Controller
product: 82801I (ICH9 Family) USB2 EHCI Controller #2
vendor: Intel Corporation
physical id: 1a.7
bus info: pci@0000:00:1a.7
version: 03
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci_hcd latency=0
resources: irq:19 memory:d4505c00-d4505fff
O USB 3.0 usa um driver diferente do USB 2.0 (ou 1.0). Eu acho que o driver 3.0 foi chamado xhci --- e sua impressão diz driver = ehci, que era o driver 2.0, mas não me lembro do driver uhci.