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echo /dev/ttyUSB$(grep Sub=ff /proc/bus/usb/devices | grep ' 3 ' | cut -f3 -d' ')
# echo /dev/ttyUSB$(grep Sub=ff /proc/bus/usb/devices | grep ' 3 ' | cut -f3 -d' ')/dev/ttyUSB3 4 0#
# ./modem_port #
KERNEL=="ttyUSB*", SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ATTRS{bNumEndpoints}=="03", SYMLINK+="modem"
udevadm info -a -p $(udevadm info -q path -n /dev/ttyACM0)
Так никто и не отважился испытать правило udev?
Код# udevadm info -a -p $(udevadm info -q path -n /dev/ttyACM0) Udevadm info starts with the device specified by the devpath and thenwalks up the chain of parent devices. It prints for every devicefound, all possible attributes in the udev rules key format.A rule to match, can be composed by the attributes of the deviceand the attributes from one single parent device. looking at device '/devices/pci0000:00/0000:00:02.0/usb2/2-4/2-4:1.0/tty/ttyACM0': KERNEL=="ttyACM0" SUBSYSTEM=="tty" DRIVER=="" looking at parent device '/devices/pci0000:00/0000:00:02.0/usb2/2-4/2-4:1.0': KERNELS=="2-4:1.0" SUBSYSTEMS=="usb" DRIVERS=="cdc_acm" ATTRS{bInterfaceNumber}=="00" ATTRS{bAlternateSetting}==" 0" ATTRS{bNumEndpoints}=="01" ATTRS{bInterfaceClass}=="02" ATTRS{bInterfaceSubClass}=="02" ATTRS{bInterfaceProtocol}=="01" ATTRS{supports_autosuspend}=="1" ATTRS{bmCapabilities}=="15" looking at parent device '/devices/pci0000:00/0000:00:02.0/usb2/2-4': KERNELS=="2-4" SUBSYSTEMS=="usb" DRIVERS=="usb" ATTRS{configuration}=="" ATTRS{bNumInterfaces}==" 3" ATTRS{bConfigurationValue}=="1" ATTRS{bmAttributes}=="80" ATTRS{bMaxPower}=="100mA" ATTRS{urbnum}=="10841" ATTRS{idVendor}=="16d8" ATTRS{idProduct}=="5533" ATTRS{bcdDevice}=="0000" ATTRS{bDeviceClass}=="02" ATTRS{bDeviceSubClass}=="00" ATTRS{bDeviceProtocol}=="00" ATTRS{bNumConfigurations}=="1" ATTRS{bMaxPacketSize0}=="16" ATTRS{speed}=="12" ATTRS{busnum}=="2" ATTRS{devnum}=="2" ATTRS{devpath}=="4" ATTRS{version}==" 2.00" ATTRS{maxchild}=="0" ATTRS{quirks}=="0x0" ATTRS{avoid_reset_quirk}=="0" ATTRS{authorized}=="1" ATTRS{manufacturer}=="CMOTECH CO., LTD." ATTRS{product}=="CMOTECH CDMA Technologies" ATTRS{serial}=="Serial Number" looking at parent device '/devices/pci0000:00/0000:00:02.0/usb2': KERNELS=="usb2" SUBSYSTEMS=="usb" DRIVERS=="usb" ATTRS{configuration}=="" ATTRS{bNumInterfaces}==" 1" ATTRS{bConfigurationValue}=="1" ATTRS{bmAttributes}=="e0" ATTRS{bMaxPower}==" 0mA" ATTRS{urbnum}=="57" ATTRS{idVendor}=="1d6b" ATTRS{idProduct}=="0001" ATTRS{bcdDevice}=="0302" ATTRS{bDeviceClass}=="09" ATTRS{bDeviceSubClass}=="00" ATTRS{bDeviceProtocol}=="00" ATTRS{bNumConfigurations}=="1" ATTRS{bMaxPacketSize0}=="64" ATTRS{speed}=="12" ATTRS{busnum}=="2" ATTRS{devnum}=="1" ATTRS{devpath}=="0" ATTRS{version}==" 1.10" ATTRS{maxchild}=="8" ATTRS{quirks}=="0x0" ATTRS{avoid_reset_quirk}=="0" ATTRS{authorized}=="1" ATTRS{manufacturer}=="Linux 3.2.8-ski ohci_hcd" ATTRS{product}=="OHCI Host Controller" ATTRS{serial}=="0000:00:02.0" ATTRS{authorized_default}=="1" looking at parent device '/devices/pci0000:00/0000:00:02.0': KERNELS=="0000:00:02.0" SUBSYSTEMS=="pci" DRIVERS=="ohci_hcd" ATTRS{vendor}=="0x10de" ATTRS{device}=="0x03f1" ATTRS{subsystem_vendor}=="0x1565" ATTRS{subsystem_device}=="0x3407" ATTRS{class}=="0x0c0310" ATTRS{irq}=="21" ATTRS{local_cpus}=="ff" ATTRS{local_cpulist}=="0-7" ATTRS{dma_mask_bits}=="32" ATTRS{consistent_dma_mask_bits}=="32" ATTRS{enable}=="1" ATTRS{broken_parity_status}=="0" ATTRS{msi_bus}=="" looking at parent device '/devices/pci0000:00': KERNELS=="pci0000:00" SUBSYSTEMS=="" DRIVERS==""#
# udevadm info -a -p $(udevadm info -q path -n /dev/ttyACM0) Udevadm info starts with the device specified by the devpath and thenwalks up the chain of parent devices. It prints for every devicefound, all possible attributes in the udev rules key format.A rule to match, can be composed by the attributes of the deviceand the attributes from one single parent device. looking at device '/devices/pci0000:00/0000:00:02.0/usb2/2-4/2-4:1.0/tty/ttyACM0': KERNEL=="ttyACM0" SUBSYSTEM=="tty" DRIVER=="" looking at parent device '/devices/pci0000:00/0000:00:02.0/usb2/2-4/2-4:1.0': KERNELS=="2-4:1.0" SUBSYSTEMS=="usb" DRIVERS=="cdc_acm" ATTRS{bInterfaceNumber}=="00" ATTRS{bAlternateSetting}==" 0" ATTRS{bNumEndpoints}=="01" ATTRS{bInterfaceClass}=="02" ATTRS{bInterfaceSubClass}=="02" ATTRS{bInterfaceProtocol}=="01" ATTRS{supports_autosuspend}=="1" ATTRS{bmCapabilities}=="15" looking at parent device '/devices/pci0000:00/0000:00:02.0/usb2/2-4': KERNELS=="2-4" SUBSYSTEMS=="usb" DRIVERS=="usb" ATTRS{configuration}=="" ATTRS{bNumInterfaces}==" 3" ATTRS{bConfigurationValue}=="1" ATTRS{bmAttributes}=="80" ATTRS{bMaxPower}=="100mA" ATTRS{urbnum}=="10841" ATTRS{idVendor}=="16d8" ATTRS{idProduct}=="5533" ATTRS{bcdDevice}=="0000" ATTRS{bDeviceClass}=="02" ATTRS{bDeviceSubClass}=="00" ATTRS{bDeviceProtocol}=="00" ATTRS{bNumConfigurations}=="1" ATTRS{bMaxPacketSize0}=="16" ATTRS{speed}=="12" ATTRS{busnum}=="2" ATTRS{devnum}=="2" ATTRS{devpath}=="4" ATTRS{version}==" 2.00" ATTRS{maxchild}=="0" ATTRS{quirks}=="0x0" ATTRS{avoid_reset_quirk}=="0" ATTRS{authorized}=="1" ATTRS{manufacturer}=="CMOTECH CO., LTD." ATTRS{product}=="CMOTECH CDMA Technologies" ATTRS{serial}=="Serial Number" looking at parent device '/devices/pci0000:00/0000:00:02.0/usb2': KERNELS=="usb2" SUBSYSTEMS=="usb" DRIVERS=="usb" ATTRS{configuration}=="" ATTRS{bNumInterfaces}==" 1" ATTRS{bConfigurationValue}=="1" ATTRS{bmAttributes}=="e0" ATTRS{bMaxPower}==" 0mA" ATTRS{urbnum}=="57" ATTRS{idVendor}=="1d6b" ATTRS{idProduct}=="0001" ATTRS{bcdDevice}=="0302" ATTRS{bDeviceClass}=="09" ATTRS{bDeviceSubClass}=="00" ATTRS{bDeviceProtocol}=="00" ATTRS{bNumConfigurations}=="1" ATTRS{bMaxPacketSize0}=="64" ATTRS{speed}=="12" ATTRS{busnum}=="2" ATTRS{devnum}=="1" ATTRS{devpath}=="0" ATTRS{version}==" 1.10" ATTRS{maxchild}=="8" ATTRS{quirks}=="0x0" ATTRS{avoid_reset_quirk}=="0" ATTRS{authorized}=="1" ATTRS{manufacturer}=="Linux 3.2.8-ski ohci_hcd" ATTRS{product}=="OHCI Host Controller" ATTRS{serial}=="0000:00:02.0" ATTRS{authorized_default}=="1" looking at parent device '/devices/pci0000:00/0000:00:02.0': KERNELS=="0000:00:02.0" SUBSYSTEMS=="pci" DRIVERS=="ohci_hcd" ATTRS{vendor}=="0x10de" ATTRS{device}=="0x03f1" ATTRS{subsystem_vendor}=="0x1565" ATTRS{subsystem_device}=="0x3407" ATTRS{class}=="0x0c0310" ATTRS{irq}=="21" ATTRS{local_cpus}=="ff" ATTRS{local_cpulist}=="0-7" ATTRS{dma_mask_bits}=="32" ATTRS{consistent_dma_mask_bits}=="32" ATTRS{enable}=="1" ATTRS{broken_parity_status}=="0" ATTRS{msi_bus}=="" looking at parent device '/devices/pci0000:00': KERNELS=="pci0000:00" SUBSYSTEMS=="" DRIVERS==""#
# readlink /dev/modemttyACM1# readlink /dev/modemttyUSB0
Надо проверить
#echo /dev/ttyUSB$(grep Sub=ff /proc/bus/usb/devices | grep ' 3 ' | cut -f3 -d' ')#/dev/ttyUSB0 1 3