プラグを差し込むと、2つの異なるコア（たとえば、および. /dev/ttyUSB01/dev/ttyUSB1つは構成ポート、もう1つはデータポートと呼ばれます。）構成には、常にデータの前に最初の番号が割り当てられます。
ポートをシンボリックリンクし、異なるデバイスを区別するudevルールを作成しようとしています。残念ながら、差別化機能は、データ対構成の1つの親エントリと、デバイスとデバイスの別の親エントリにあるようです。
データの観点から前の構成を利用する方法がわかりません。ハードコーディングなしでどのようにこれを行うことができますか？目的の結果が次のようになるとします。
/dev/device0_config
/dev/device0_data
/dev/device1_config
/dev/device1_data
attribute-walkデバイスを接続すると、それぞれ次の構成とデータ結果が生成されます。
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/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/ttyUSB1/tty/ttyUSB1':
KERNEL=="ttyUSB1"
SUBSYSTEM=="tty"
DRIVER==""
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/ttyUSB1':
KERNELS=="ttyUSB1"
SUBSYSTEMS=="usb-serial"
DRIVERS=="cp210x"
ATTRS{port_number}=="0"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0':
KERNELS=="3-2:1.0"
SUBSYSTEMS=="usb"
DRIVERS=="cp210x"
ATTRS{supports_autosuspend}=="1"
ATTRS{bNumEndpoints}=="02"
ATTRS{bInterfaceProtocol}=="00"
ATTRS{bInterfaceSubClass}=="00"
ATTRS{bInterfaceClass}=="ff"
ATTRS{interface}=="Enhanced Com Port"
ATTRS{bInterfaceNumber}=="00"
ATTRS{authorized}=="1"
ATTRS{bAlternateSetting}==" 0"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-2':
KERNELS=="3-2"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{bConfigurationValue}=="1"
ATTRS{bNumConfigurations}=="1"
ATTRS{quirks}=="0x0"
ATTRS{devnum}=="9"
ATTRS{version}==" 2.00"
ATTRS{bcdDevice}=="0100"
ATTRS{bNumInterfaces}==" 2"
ATTRS{bDeviceProtocol}=="00"
ATTRS{speed}=="12"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{urbnum}=="22"
ATTRS{maxchild}=="0"
ATTRS{product}=="CP2105 Dual USB to UART Bridge Controller"
ATTRS{bmAttributes}=="80"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bMaxPower}=="100mA"
ATTRS{configuration}==""
ATTRS{idProduct}=="ea70"
ATTRS{idVendor}=="10c4"
ATTRS{ltm_capable}=="no"
ATTRS{busnum}=="3"
ATTRS{removable}=="removable"
ATTRS{avoid_reset_quirk}=="0"
ATTRS{rx_lanes}=="1"
ATTRS{manufacturer}=="Silicon Labs"
ATTRS{authorized}=="1"
ATTRS{bDeviceClass}=="00"
ATTRS{serial}=="00E25BEB"
ATTRS{tx_lanes}=="1"
ATTRS{devpath}=="2"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3':
KERNELS=="usb3"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{speed}=="480"
ATTRS{bcdDevice}=="0515"
ATTRS{authorized_default}=="1"
ATTRS{busnum}=="3"
ATTRS{interface_authorized_default}=="1"
ATTRS{bConfigurationValue}=="1"
ATTRS{version}==" 2.00"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{bmAttributes}=="e0"
ATTRS{bNumInterfaces}==" 1"
ATTRS{bNumConfigurations}=="1"
ATTRS{tx_lanes}=="1"
ATTRS{avoid_reset_quirk}=="0"
ATTRS{bDeviceClass}=="09"
ATTRS{maxchild}=="12"
ATTRS{bMaxPower}=="0mA"
ATTRS{product}=="xHCI Host Controller"
ATTRS{serial}=="0000:00:14.0"
ATTRS{bDeviceProtocol}=="01"
ATTRS{devnum}=="1"
ATTRS{configuration}==""
ATTRS{idVendor}=="1d6b"
ATTRS{devpath}=="0"
ATTRS{quirks}=="0x0"
ATTRS{urbnum}=="144"
ATTRS{removable}=="unknown"
ATTRS{bDeviceSubClass}=="00"
ATTRS{idProduct}=="0002"
ATTRS{authorized}=="1"
ATTRS{rx_lanes}=="1"
ATTRS{ltm_capable}=="no"
ATTRS{manufacturer}=="Linux 5.15.0-58-generic xhci-hcd"
looking at parent device '/devices/pci0000:00/0000:00:14.0':
KERNELS=="0000:00:14.0"
SUBSYSTEMS=="pci"
DRIVERS=="xhci_hcd"
ATTRS{consistent_dma_mask_bits}=="64"
ATTRS{enable}=="1"
ATTRS{ari_enabled}=="0"
ATTRS{local_cpulist}=="0-7"
ATTRS{label}=="Onboard - Other"
ATTRS{dbc}=="disabled"
ATTRS{device}=="0xa0ed"
ATTRS{local_cpus}=="ff"
ATTRS{subsystem_device}=="0x3002"
ATTRS{irq}=="147"
ATTRS{vendor}=="0x8086"
ATTRS{power_state}=="D0"
ATTRS{d3cold_allowed}=="1"
ATTRS{class}=="0x0c0330"
ATTRS{index}=="6"
ATTRS{driver_override}=="(null)"
ATTRS{numa_node}=="-1"
ATTRS{dma_mask_bits}=="64"
ATTRS{msi_bus}=="1"
ATTRS{subsystem_vendor}=="0x8086"
ATTRS{broken_parity_status}=="0"
ATTRS{revision}=="0x20"
looking at parent device '/devices/pci0000:00':
KERNELS=="pci0000:00"
SUBSYSTEMS==""
DRIVERS==""
ATTRS{waiting_for_supplier}=="0"
そして
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/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.1/ttyUSB2/tty/ttyUSB2':
KERNEL=="ttyUSB2"
SUBSYSTEM=="tty"
DRIVER==""
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.1/ttyUSB2':
KERNELS=="ttyUSB2"
SUBSYSTEMS=="usb-serial"
DRIVERS=="cp210x"
ATTRS{port_number}=="0"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.1':
KERNELS=="3-2:1.1"
SUBSYSTEMS=="usb"
DRIVERS=="cp210x"
ATTRS{bNumEndpoints}=="02"
ATTRS{authorized}=="1"
ATTRS{bInterfaceProtocol}=="00"
ATTRS{bInterfaceNumber}=="01"
ATTRS{bInterfaceClass}=="ff"
ATTRS{bInterfaceSubClass}=="00"
ATTRS{bAlternateSetting}==" 0"
ATTRS{interface}=="Standard Com Port"
ATTRS{supports_autosuspend}=="1"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-2':
KERNELS=="3-2"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{devpath}=="2"
ATTRS{authorized}=="1"
ATTRS{manufacturer}=="Silicon Labs"
ATTRS{speed}=="12"
ATTRS{quirks}=="0x0"
ATTRS{bMaxPower}=="100mA"
ATTRS{bDeviceClass}=="00"
ATTRS{serial}=="00E25BEB"
ATTRS{removable}=="removable"
ATTRS{configuration}==""
ATTRS{bMaxPacketSize0}=="64"
ATTRS{ltm_capable}=="no"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bNumInterfaces}==" 2"
ATTRS{bcdDevice}=="0100"
ATTRS{busnum}=="3"
ATTRS{bmAttributes}=="80"
ATTRS{bNumConfigurations}=="1"
ATTRS{avoid_reset_quirk}=="0"
ATTRS{bConfigurationValue}=="1"
ATTRS{product}=="CP2105 Dual USB to UART Bridge Controller"
ATTRS{urbnum}=="22"
ATTRS{maxchild}=="0"
ATTRS{bDeviceProtocol}=="00"
ATTRS{tx_lanes}=="1"
ATTRS{idVendor}=="10c4"
ATTRS{idProduct}=="ea70"
ATTRS{rx_lanes}=="1"
ATTRS{devnum}=="9"
ATTRS{version}==" 2.00"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3':
KERNELS=="usb3"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bNumConfigurations}=="1"
ATTRS{bConfigurationValue}=="1"
ATTRS{product}=="xHCI Host Controller"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{bNumInterfaces}==" 1"
ATTRS{busnum}=="3"
ATTRS{version}==" 2.00"
ATTRS{tx_lanes}=="1"
ATTRS{idVendor}=="1d6b"
ATTRS{quirks}=="0x0"
ATTRS{removable}=="unknown"
ATTRS{authorized_default}=="1"
ATTRS{devnum}=="1"
ATTRS{devpath}=="0"
ATTRS{speed}=="480"
ATTRS{bcdDevice}=="0515"
ATTRS{urbnum}=="144"
ATTRS{rx_lanes}=="1"
ATTRS{bDeviceProtocol}=="01"
ATTRS{configuration}==""
ATTRS{serial}=="0000:00:14.0"
ATTRS{interface_authorized_default}=="1"
ATTRS{bDeviceClass}=="09"
ATTRS{maxchild}=="12"
ATTRS{manufacturer}=="Linux 5.15.0-58-generic xhci-hcd"
ATTRS{bmAttributes}=="e0"
ATTRS{idProduct}=="0002"
ATTRS{avoid_reset_quirk}=="0"
ATTRS{bMaxPower}=="0mA"
ATTRS{ltm_capable}=="no"
ATTRS{authorized}=="1"
looking at parent device '/devices/pci0000:00/0000:00:14.0':
KERNELS=="0000:00:14.0"
SUBSYSTEMS=="pci"
DRIVERS=="xhci_hcd"
ATTRS{dma_mask_bits}=="64"
ATTRS{broken_parity_status}=="0"
ATTRS{driver_override}=="(null)"
ATTRS{d3cold_allowed}=="1"
ATTRS{revision}=="0x20"
ATTRS{irq}=="147"
ATTRS{power_state}=="D0"
ATTRS{device}=="0xa0ed"
ATTRS{label}=="Onboard - Other"
ATTRS{dbc}=="disabled"
ATTRS{enable}=="1"
ATTRS{index}=="6"
ATTRS{local_cpulist}=="0-7"
ATTRS{subsystem_vendor}=="0x8086"
ATTRS{local_cpus}=="ff"
ATTRS{subsystem_device}=="0x3002"
ATTRS{msi_bus}=="1"
ATTRS{consistent_dma_mask_bits}=="64"
ATTRS{vendor}=="0x8086"
ATTRS{numa_node}=="-1"
ATTRS{class}=="0x0c0330"
ATTRS{ari_enabled}=="0"
looking at parent device '/devices/pci0000:00':
KERNELS=="pci0000:00"
SUBSYSTEMS==""
DRIVERS==""
ATTRS{waiting_for_supplier}=="0"
ATTRS{serial}==...利用可能なデバイスを区別するにはlooking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-2':