如何使用 udev 查询 USB 设备信息
你可以使用 udevadm 查询给定 USB 设备（如 /dev/usbtmc0）的信息，如 USB 设备路径：
udevadm_info.sh
udevadm info -q all /dev/usbtmc0udevadm_query.sh
udevadm info -q all /dev/usbtmc0示例输出：
udevadm_output.txt
P: /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/usbmisc/usbtmc0
N: usbtmc0
L: 0
E: DEVPATH=/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/usbmisc/usbtmc0
E: DEVNAME=/dev/usbtmc0
E: MAJOR=180
E: MINOR=176
E: SUBSYSTEM=usbmiscudevadm_output.txt
P: /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/usbmisc/usbtmc0
N: usbtmc0
L: 0
E: DEVPATH=/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/usbmisc/usbtmc0
E: DEVNAME=/dev/usbtmc0
E: MAJOR=180
E: MINOR=176
E: SUBSYSTEM=usbmiscCheck out similar posts by category:
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