udevadm命令查看usb设备信息

Love The Way You Lie 2022-04-23 11:02 755阅读 0赞

hugo@ubentu16:~$ udevadm info --query=all --name=/dev/video0  
P: /devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-2/3-2.1/3-2.1:1.0/video4linux/video0  
N: video0  
S: v4l/by-id/usb-Chicony\_Electronics\_Co.\_Ltd.\_Integrated\_Camera\_0001-video-index0  
S: v4l/by-path/pci-0000:03:00.0-usb-0:2.1:1.0-video-index0  
E: COLORD\_DEVICE=1  
E: COLORD\_KIND=camera  
E: DEVLINKS=/dev/v4l/by-path/pci-0000:03:00.0-usb-0:2.1:1.0-video-index0 /dev/v4l/by-id/usb-Chicony\_Electronics\_Co.\_Ltd.\_Integrated\_Camera\_0001-video-index0  
E: DEVNAME=/dev/video0  
E: DEVPATH=/devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-2/3-2.1/3-2.1:1.0/video4linux/video0  
E: ID\_BUS=usb  
E: ID\_FOR\_SEAT=video4linux-pci-0000\_03\_00\_0-usb-0\_2\_1\_1\_0  
E: ID\_MODEL=Integrated\_Camera  
E: ID\_MODEL\_ENC=Integrated\\x20Camera  
E: ID\_MODEL\_ID=b5c0  
E: ID\_PATH=pci-0000:03:00.0-usb-0:2.1:1.0  
E: ID\_PATH\_TAG=pci-0000\_03\_00\_0-usb-0\_2\_1\_1\_0  
E: ID\_REVISION=0005  
E: ID\_SERIAL=Chicony\_Electronics\_Co.\_Ltd.\_Integrated\_Camera\_0001  
E: ID\_SERIAL\_SHORT=0001  
E: ID\_TYPE=video  
E: ID\_USB\_DRIVER=uvcvideo  
E: ID\_USB\_INTERFACES=:0e0100:0e0200:  
E: ID\_USB\_INTERFACE\_NUM=00  
E: ID\_V4L\_CAPABILITIES=:capture:  
E: ID\_V4L\_PRODUCT=Integrated Camera  
E: ID\_V4L\_VERSION=2  
E: ID\_VENDOR=Chicony\_Electronics\_Co.\_Ltd.  
E: ID\_VENDOR\_ENC=Chicony\\x20Electronics\\x20Co.\\x2cLtd.  
E: ID\_VENDOR\_ID=04f2  
E: MAJOR=81  
E: MINOR=0  
E: SUBSYSTEM=video4linux  
E: TAGS=:seat:uaccess:  
E: USEC\_INITIALIZED=1845884507

hugo@ubentu16:~$ udevadm info -a -p /sys/class/usbmisc/lp0

Udevadm info starts with the device specified by the devpath and then  
walks up the chain of parent devices. It prints for every device  
found, all possible attributes in the udev rules key format.  
A rule to match, can be composed by the attributes of the device  
and the attributes from one single parent device.

looking at device '/devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-1/3-1.3/3-1.3:1.0/usbmisc/lp0':  
    KERNEL=="lp0"  
    SUBSYSTEM=="usbmisc"  
    DRIVER==""

looking at parent device '/devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-1/3-1.3/3-1.3:1.0':  
    KERNELS=="3-1.3:1.0"  
    SUBSYSTEMS=="usb"  
    DRIVERS=="usblp"  
    ATTRS\{authorized\}=="1"  
    ATTRS\{bAlternateSetting\}==" 0"  
    ATTRS\{bInterfaceClass\}=="07"  
    ATTRS\{bInterfaceNumber\}=="00"  
    ATTRS\{bInterfaceProtocol\}=="02"  
    ATTRS\{bInterfaceSubClass\}=="01"  
    ATTRS\{bNumEndpoints\}=="02"  
    ATTRS\{ieee1284\_id\}=="CLS:PRINTER;DES:Siupo;"  
    ATTRS\{supports\_autosuspend\}=="1"

looking at parent device '/devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-1/3-1.3':  
    KERNELS=="3-1.3"  
    SUBSYSTEMS=="usb"  
    DRIVERS=="usb"  
    ATTRS\{authorized\}=="1"  
    ATTRS\{avoid\_reset\_quirk\}=="0"  
    ATTRS\{bConfigurationValue\}=="1"  
    ATTRS\{bDeviceClass\}=="00"  
    ATTRS\{bDeviceProtocol\}=="00"  
    ATTRS\{bDeviceSubClass\}=="00"  
    ATTRS\{bMaxPacketSize0\}=="64"  
    ATTRS\{bMaxPower\}=="100mA"  
    ATTRS\{bNumConfigurations\}=="1"  
    ATTRS\{bNumInterfaces\}==" 1"  
    ATTRS\{bcdDevice\}=="0200"  
    ATTRS\{bmAttributes\}=="c0"  
    ATTRS\{busnum\}=="3"  
    ATTRS\{configuration\}==""  
    ATTRS\{devnum\}=="20"  
    ATTRS\{devpath\}=="1.3"  
    ATTRS\{idProduct\}=="2305"  
    ATTRS\{idVendor\}=="067b"  
    ATTRS\{ltm\_capable\}=="no"  
    ATTRS\{manufacturer\}=="SIUPO"  
    ATTRS\{maxchild\}=="0"  
    ATTRS\{product\}=="SIUPO USB Printer"  
    ATTRS\{quirks\}=="0x0"  
    ATTRS\{removable\}=="unknown"  
    ATTRS\{serial\}=="7362B6E81939"  
    ATTRS\{speed\}=="12"  
    ATTRS\{urbnum\}=="15"  
    ATTRS\{version\}==" 2.00"