and the attributes from one single parent device.
A rule to match, can be composed by the attributes of the device
    ATTRS{ari_enabled}=="0"
    ATTRS{authorized}=="1"
    ATTRS{authorized}=="1"
    ATTRS{authorized}=="1"
    ATTRS{authorized}=="1"
    ATTRS{authorized_default}=="1"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{bAlternateSetting}==" 0"
    ATTRS{bcdDevice}=="0100"
    ATTRS{bcdDevice}=="0254"
    ATTRS{bcdDevice}=="0419"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{bDeviceClass}=="09"
    ATTRS{bDeviceClass}=="09"
    ATTRS{bDeviceClass}=="ff"
    ATTRS{bDeviceProtocol}=="00"
    ATTRS{bDeviceProtocol}=="01"
    ATTRS{bDeviceProtocol}=="02"
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{bInterfaceClass}=="ff"
    ATTRS{bInterfaceNumber}=="00"
    ATTRS{bInterfaceProtocol}=="02"
    ATTRS{bInterfaceSubClass}=="01"
    ATTRS{bmAttributes}=="80"
    ATTRS{bmAttributes}=="e0"
    ATTRS{bmAttributes}=="e0"
    ATTRS{bMaxPacketSize0}=="64"
    ATTRS{bMaxPacketSize0}=="64"
    ATTRS{bMaxPacketSize0}=="8"
    ATTRS{bMaxPower}=="0mA"
    ATTRS{bMaxPower}=="100mA"
    ATTRS{bMaxPower}=="96mA"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bNumEndpoints}=="03"
    ATTRS{bNumInterfaces}==" 1"
    ATTRS{bNumInterfaces}==" 1"
    ATTRS{bNumInterfaces}==" 1"
    ATTRS{broken_parity_status}=="0"
    ATTRS{busnum}=="1"
    ATTRS{busnum}=="1"
    ATTRS{busnum}=="1"
    ATTRS{class}=="0x0c0330"
    ATTRS{configuration}==""
    ATTRS{configuration}==""
    ATTRS{configuration}==""
    ATTRS{consistent_dma_mask_bits}=="64"
    ATTRS{d3cold_allowed}=="1"
    ATTRS{device}=="0x22b5"
    ATTRS{devnum}=="1"
    ATTRS{devnum}=="3"
    ATTRS{devnum}=="5"
    ATTRS{devpath}=="0"
    ATTRS{devpath}=="3"
    ATTRS{devpath}=="3.2"
    ATTRS{dma_mask_bits}=="64"
    ATTRS{driver_override}=="(null)"
    ATTRS{enable}=="1"
    ATTRS{idProduct}=="0002"
    ATTRS{idProduct}=="0101"
    ATTRS{idProduct}=="7523"
    ATTRS{idVendor}=="1a40"
    ATTRS{idVendor}=="1a86"
    ATTRS{idVendor}=="1d6b"
    ATTRS{interface_authorized_default}=="1"
    ATTRS{irq}=="117"
    ATTRS{local_cpulist}=="0-3"
    ATTRS{local_cpus}=="f"
    ATTRS{ltm_capable}=="no"
    ATTRS{ltm_capable}=="no"
    ATTRS{ltm_capable}=="no"
    ATTRS{manufacturer}=="Linux 4.19.0-5-amd64 xhci-hcd"
    ATTRS{maxchild}=="0"
    ATTRS{maxchild}=="4"
    ATTRS{maxchild}=="7"
    ATTRS{msi_bus}=="1"
    ATTRS{numa_node}=="-1"
    ATTRS{port_number}=="0"
    ATTRS{product}=="USB 2.0 Hub [MTT]"
    ATTRS{product}=="USB2.0-Serial"
    ATTRS{product}=="xHCI Host Controller"
    ATTRS{quirks}=="0x0"
    ATTRS{quirks}=="0x0"
    ATTRS{quirks}=="0x4000"
    ATTRS{removable}=="fixed"
    ATTRS{removable}=="unknown"
    ATTRS{removable}=="unknown"
    ATTRS{revision}=="0x35"
    ATTRS{rx_lanes}=="1"
    ATTRS{rx_lanes}=="1"
    ATTRS{rx_lanes}=="1"
    ATTRS{serial}=="0000:00:14.0"
    ATTRS{speed}=="12"
    ATTRS{speed}=="480"
    ATTRS{speed}=="480"
    ATTRS{subsystem_device}=="0x7270"
    ATTRS{subsystem_vendor}=="0x8086"
    ATTRS{supports_autosuspend}=="1"
    ATTRS{tx_lanes}=="1"
    ATTRS{tx_lanes}=="1"
    ATTRS{tx_lanes}=="1"
    ATTRS{urbnum}=="1013"
    ATTRS{urbnum}=="260"
    ATTRS{urbnum}=="384082"
    ATTRS{vendor}=="0x8086"
    ATTRS{version}==" 1.10"
    ATTRS{version}==" 2.00"
    ATTRS{version}==" 2.00"
    DRIVER==""
    DRIVERS==""
    DRIVERS=="ch341"
    DRIVERS=="ch341-uart"
    DRIVERS=="usb"
    DRIVERS=="usb"
    DRIVERS=="usb"
    DRIVERS=="xhci_hcd"
found, all possible attributes in the udev rules key format.
    KERNELS=="0000:00:14.0"
    KERNELS=="1-3"
    KERNELS=="1-3.2"
    KERNELS=="1-3.2:1.0"
    KERNELS=="pci0000:00"
    KERNELS=="ttyUSB1"
    KERNELS=="usb1"
    KERNEL=="ttyUSB1"
  looking at device '/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3.2/1-3.2:1.0/ttyUSB1/tty/ttyUSB1':
  looking at parent device '/devices/pci0000:00':
  looking at parent device '/devices/pci0000:00/0000:00:14.0':
  looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1':
  looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1/1-3':
  looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3.2':
  looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3.2/1-3.2:1.0':
  looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3.2/1-3.2:1.0/ttyUSB1':
    SUBSYSTEMS==""
    SUBSYSTEMS=="pci"
    SUBSYSTEMS=="usb"
    SUBSYSTEMS=="usb"
    SUBSYSTEMS=="usb"
    SUBSYSTEMS=="usb"
    SUBSYSTEMS=="usb-serial"
    SUBSYSTEM=="tty"
Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device