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- 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/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/host12/target12:0:0/12:0:0:0/block/sdb':
- KERNEL=="sdb"
- SUBSYSTEM=="block"
- DRIVER==""
- ATTR{range}=="16"
- ATTR{ext_range}=="256"
- ATTR{removable}=="0"
- ATTR{ro}=="0"
- ATTR{size}=="1250263728"
- ATTR{alignment_offset}=="0"
- ATTR{discard_alignment}=="0"
- ATTR{capability}=="50"
- ATTR{stat}==" 167 243 1330 343 0 0 0 0 0 343 343"
- ATTR{inflight}==" 0 0"
- ATTR{events}==""
- ATTR{events_async}==""
- ATTR{events_poll_msecs}=="-1"
- looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/host12/target12:0:0/12:0:0:0':
- KERNELS=="12:0:0:0"
- SUBSYSTEMS=="scsi"
- DRIVERS=="sd"
- ATTRS{device_blocked}=="0"
- ATTRS{type}=="0"
- ATTRS{scsi_level}=="3"
- ATTRS{vendor}=="ST964032"
- ATTRS{model}=="2AS "
- ATTRS{rev}==" "
- ATTRS{state}=="running"
- ATTRS{timeout}=="30"
- ATTRS{iocounterbits}=="32"
- ATTRS{iorequest_cnt}=="0xc6"
- ATTRS{iodone_cnt}=="0xc6"
- ATTRS{ioerr_cnt}=="0x2"
- ATTRS{evt_media_change}=="0"
- ATTRS{queue_depth}=="1"
- ATTRS{queue_type}=="none"
- ATTRS{max_sectors}=="240"
- looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/host12/target12:0:0':
- KERNELS=="target12:0:0"
- SUBSYSTEMS=="scsi"
- DRIVERS==""
- looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/host12':
- KERNELS=="host12"
- SUBSYSTEMS=="scsi"
- DRIVERS==""
- looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0':
- KERNELS=="2-1:1.0"
- SUBSYSTEMS=="usb"
- DRIVERS=="usb-storage"
- ATTRS{bInterfaceNumber}=="00"
- ATTRS{bAlternateSetting}==" 0"
- ATTRS{bNumEndpoints}=="02"
- ATTRS{bInterfaceClass}=="08"
- ATTRS{bInterfaceSubClass}=="06"
- ATTRS{bInterfaceProtocol}=="50"
- ATTRS{supports_autosuspend}=="1"
- ATTRS{interface}=="MSC Bulk-Only Transfer"
- looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb2/2-1':
- KERNELS=="2-1"
- SUBSYSTEMS=="usb"
- DRIVERS=="usb"
- ATTRS{configuration}=="USB Mass Storage"
- ATTRS{bNumInterfaces}==" 1"
- ATTRS{bConfigurationValue}=="1"
- ATTRS{bmAttributes}=="c0"
- ATTRS{bMaxPower}==" 2mA"
- ATTRS{urbnum}=="617"
- ATTRS{idVendor}=="059f"
- ATTRS{idProduct}=="102a"
- ATTRS{bcdDevice}=="0100"
- ATTRS{bDeviceClass}=="00"
- ATTRS{bDeviceSubClass}=="00"
- ATTRS{bDeviceProtocol}=="00"
- ATTRS{bNumConfigurations}=="1"
- ATTRS{bMaxPacketSize0}=="64"
- ATTRS{speed}=="480"
- ATTRS{busnum}=="2"
- ATTRS{devnum}=="8"
- ATTRS{devpath}=="1"
- ATTRS{version}==" 2.00"
- ATTRS{maxchild}=="0"
- ATTRS{quirks}=="0x0"
- ATTRS{avoid_reset_quirk}=="0"
- ATTRS{authorized}=="1"
- ATTRS{manufacturer}=="LaCie"
- ATTRS{product}=="LaCie Device"
- ATTRS{serial}=="508FFFFFFFFF"
- looking at parent device '/devices/pci0000:00/0000:00:1d.7/usb2':
- KERNELS=="usb2"
- SUBSYSTEMS=="usb"
- DRIVERS=="usb"
- ATTRS{configuration}==""
- ATTRS{bNumInterfaces}==" 1"
- ATTRS{bConfigurationValue}=="1"
- ATTRS{bmAttributes}=="e0"
- ATTRS{bMaxPower}==" 0mA"
- ATTRS{urbnum}=="166"
- ATTRS{idVendor}=="1d6b"
- ATTRS{idProduct}=="0002"
- ATTRS{bcdDevice}=="0303"
- ATTRS{bDeviceClass}=="09"
- ATTRS{bDeviceSubClass}=="00"
- ATTRS{bDeviceProtocol}=="00"
- ATTRS{bNumConfigurations}=="1"
- ATTRS{bMaxPacketSize0}=="64"
- ATTRS{speed}=="480"
- ATTRS{busnum}=="2"
- ATTRS{devnum}=="1"
- ATTRS{devpath}=="0"
- ATTRS{version}==" 2.00"
- ATTRS{maxchild}=="6"
- ATTRS{quirks}=="0x0"
- ATTRS{avoid_reset_quirk}=="0"
- ATTRS{authorized}=="1"
- ATTRS{manufacturer}=="Linux 3.3.8-1-ARCH ehci_hcd"
- ATTRS{product}=="EHCI Host Controller"
- ATTRS{serial}=="0000:00:1d.7"
- ATTRS{authorized_default}=="1"
- looking at parent device '/devices/pci0000:00/0000:00:1d.7':
- KERNELS=="0000:00:1d.7"
- SUBSYSTEMS=="pci"
- DRIVERS=="ehci_hcd"
- ATTRS{vendor}=="0x8086"
- ATTRS{device}=="0x293a"
- ATTRS{subsystem_vendor}=="0x103c"
- ATTRS{subsystem_device}=="0x30dd"
- ATTRS{class}=="0x0c0320"
- ATTRS{irq}=="20"
- ATTRS{local_cpus}=="00000000,00000003"
- ATTRS{local_cpulist}=="0-1"
- ATTRS{numa_node}=="-1"
- ATTRS{dma_mask_bits}=="32"
- ATTRS{consistent_dma_mask_bits}=="32"
- ATTRS{broken_parity_status}=="0"
- ATTRS{msi_bus}==""
- ATTRS{companion}==""
- ATTRS{uframe_periodic_max}=="100"
- looking at parent device '/devices/pci0000:00':
- KERNELS=="pci0000:00"
- SUBSYSTEMS==""
- DRIVERS==""
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