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"