ARM&Linux环境搭建
lsusb & grep
2026-09-16
1
0
grep -i 忽略大小写
lsusb | grep -i myusb
Bus 003 Device 007: ID 2dc0:2241 Myusb USB2.0 HUB
Bus 004 Device 048: ID 2dc0:3143 Myusb USB3.0 HUB
lsusb -D 显示设备描述符（设备描述符、配置描述符）等信息
lsusb -D /dev/bus/usb/003/007
lsusb -t 显示设备链接速度
grep
查看系统的配置情况
grep -i xhci /boot/config-$(uname -r)
CONFIG_USB_XHCI_HCD=y
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=y
CONFIG_USB_XHCI_PCI_RENESAS=m
CONFIG_USB_XHCI_PLATFORM=y
`
