以下是否意味着我的电脑上有 USB 3.0?
*-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
答案1
USB 3.0 使用的驱动程序与 USB 2.0(或 1.0)不同。我认为 3.0 驱动程序称为 xhci--- 并且您的打印输出显示 driver=ehci,这是 2.0 驱动程序,但我不记得 uhci 驱动程序。
答案2
从我看这里,它是 USB 2.0,而不是 3.0。如果您提到您的 PC 品牌、型号名称等,肯定会有所帮助。