我正在运行 11.10，想知道这是否意味着我有 USB 3.0

Question

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

Answer 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。

Answer 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。