USB端口在Gentoo Linux中不起作用

Question

我有一块主板技嘉Z170-D3H ，安装了新的 Gentoo Linux（自编内核 4.9.6-gentoo-r1 ）和两个USB设备连接（Flashdrive和鼠标）。但USB端口不起作用。

当我输入lsblk时，只有我的系统磁盘sda。

lspci | grep USB返回：

00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31)

lsusb返回：

libusb: debug [libusb_init] created default context
libusb: debug [libusb_init] libusb v1.0.19.10903
libusb: error [op_init] could not find usbfs
unable to initialize libusb: -99

dmesg | grep 'USB\|usb'返回：

[    0.293570] ACPI: bus type USB registered
[    0.293665] usbcore: registered new interface driver usbfs
[    0.293756] usbcore: registered new interface driver hub
[    0.293850] usbcore: registered new device driver usb
[    0.987392] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.987449] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.987487] uhci_hcd: USB Universal Host Controller Interface driver
[    0.987548] usbcore: registered new interface driver usblp
[    0.987592] usbcore: registered new interface driver usb-storage
[    0.992362] usbcore: registered new interface driver usbhid
[    0.992376] usbhid: USB HID core driver

usb-devices不返回任何内容。

内核配置的屏幕截图：

USB支持

HID总线支持

Answer 1

对于XHCI HCD驱动程序，请将配置选项从M更改为*，看看是否有效？我建议的是不要将XHCI驱动程序作为可加载模块。