udev블루투스 장치가 연결될 때마다 스크립트를 호출하려고 합니다 . 지금까지 내가 한 일은 다음과 같습니다.
bluetooth.rules에 파일을 만들었 습니다 /etc/udev/rules.d. bluetooth.rules자체에는 한 줄만 포함됩니다.
SUBSYSTEM=="bluetooth", RUN+="/path/to/myscript"
블루투스 연결이 이루어질 때마다 실행하고 싶습니다.그리고종료; 문제는 전자가 아닌 후자의 경우에만 스크립트가 호출된다는 것입니다.
연결이 형성될 때의 출력은 다음 과 같습니다 udevadm monitor(실행 후 bluetoothctl connect <MAC address>).
KERNEL[71481.889315] add /devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0/bluetooth/hci0/hci0:256 (bluetooth)
UDEV [71481.903034] add /devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0/bluetooth/hci0/hci0:256 (bluetooth)
KERNEL[71482.495175] add /devices/virtual/input/input45 (input)
KERNEL[71482.495248] add /devices/virtual/input/input45/event24 (input)
UDEV [71482.496423] add /devices/virtual/input/input45 (input)
UDEV [71482.591539] add /devices/virtual/input/input45/event24 (input)
이제 장치 연결이 끊어졌습니다.
KERNEL[71553.849145] remove /devices/virtual/input/input45/event24 (input)
UDEV [71553.850872] remove /devices/virtual/input/input45/event24 (input)
KERNEL[71553.919022] remove /devices/virtual/input/input45 (input)
UDEV [71553.919624] remove /devices/virtual/input/input45 (input)
KERNEL[71556.168971] remove /devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0/bluetooth/hci0/hci0:256 (bluetooth)
UDEV [71556.179602] remove /devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0/bluetooth/hci0/hci0:256 (bluetooth)
실행 후 결과는 다음과 같습니다 udevadm info --attribute-walk --path.
$ udevadm info --attribute-walk --path=/devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0/bluetooth/hci0/hci0:256
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/usb3/3-11/3-11:1.0/bluetooth/hci0/hci0:256':
KERNEL=="hci0:256"
SUBSYSTEM=="bluetooth"
DRIVER==""
ATTR{power/control}=="auto"
ATTR{power/runtime_active_time}=="0"
ATTR{power/runtime_status}=="unsupported"
ATTR{power/runtime_suspended_time}=="0"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0/bluetooth/hci0':
KERNELS=="hci0"
SUBSYSTEMS=="bluetooth"
DRIVERS==""
ATTRS{power/control}=="auto"
ATTRS{power/runtime_active_time}=="0"
ATTRS{power/runtime_status}=="unsupported"
ATTRS{power/runtime_suspended_time}=="0"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0':
KERNELS=="3-11:1.0"
SUBSYSTEMS=="usb"
DRIVERS=="btusb"
ATTRS{authorized}=="1"
ATTRS{bAlternateSetting}==" 0"
ATTRS{bInterfaceClass}=="e0"
ATTRS{bInterfaceNumber}=="00"
ATTRS{bInterfaceProtocol}=="01"
ATTRS{bInterfaceSubClass}=="01"
ATTRS{bNumEndpoints}=="03"
ATTRS{supports_autosuspend}=="1"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3/3-11':
KERNELS=="3-11"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{authorized}=="1"
ATTRS{avoid_reset_quirk}=="0"
ATTRS{bConfigurationValue}=="1"
ATTRS{bDeviceClass}=="e0"
ATTRS{bDeviceProtocol}=="01"
ATTRS{bDeviceSubClass}=="01"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{bMaxPower}=="100mA"
ATTRS{bNumConfigurations}=="1"
ATTRS{bNumInterfaces}==" 2"
ATTRS{bcdDevice}=="0001"
ATTRS{bmAttributes}=="e0"
ATTRS{busnum}=="3"
ATTRS{configuration}==""
ATTRS{devnum}=="6"
ATTRS{devpath}=="11"
ATTRS{idProduct}=="07dc"
ATTRS{idVendor}=="8087"
ATTRS{ltm_capable}=="no"
ATTRS{maxchild}=="0"
ATTRS{power/active_duration}=="63390"
ATTRS{power/autosuspend}=="2"
ATTRS{power/autosuspend_delay_ms}=="2000"
ATTRS{power/connected_duration}=="327300"
ATTRS{power/control}=="auto"
ATTRS{power/level}=="auto"
ATTRS{power/persist}=="1"
ATTRS{power/runtime_active_time}=="63920"
ATTRS{power/runtime_status}=="suspended"
ATTRS{power/runtime_suspended_time}=="263050"
ATTRS{power/wakeup}=="disabled"
ATTRS{power/wakeup_abort_count}==""
ATTRS{power/wakeup_active}==""
ATTRS{power/wakeup_active_count}==""
ATTRS{power/wakeup_count}==""
ATTRS{power/wakeup_expire_count}==""
ATTRS{power/wakeup_last_time_ms}==""
ATTRS{power/wakeup_max_time_ms}==""
ATTRS{power/wakeup_total_time_ms}==""
ATTRS{quirks}=="0x0"
ATTRS{removable}=="fixed"
ATTRS{remove}=="(not readable)"
ATTRS{rx_lanes}=="1"
ATTRS{speed}=="12"
ATTRS{tx_lanes}=="1"
ATTRS{urbnum}=="1227"
ATTRS{version}==" 2.00"
looking at parent device '/devices/pci0000:00/0000:00:14.0/usb3':
KERNELS=="usb3"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{authorized}=="1"
ATTRS{authorized_default}=="1"
ATTRS{avoid_reset_quirk}=="0"
ATTRS{bConfigurationValue}=="1"
ATTRS{bDeviceClass}=="09"
ATTRS{bDeviceProtocol}=="01"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{bMaxPower}=="0mA"
ATTRS{bNumConfigurations}=="1"
ATTRS{bNumInterfaces}==" 1"
ATTRS{bcdDevice}=="0515"
ATTRS{bmAttributes}=="e0"
ATTRS{busnum}=="3"
ATTRS{configuration}==""
ATTRS{devnum}=="1"
ATTRS{devpath}=="0"
ATTRS{idProduct}=="0002"
ATTRS{idVendor}=="1d6b"
ATTRS{interface_authorized_default}=="1"
ATTRS{ltm_capable}=="no"
ATTRS{manufacturer}=="Linux 5.15.68-1-lts xhci-hcd"
ATTRS{maxchild}=="15"
ATTRS{power/active_duration}=="1310670"
ATTRS{power/autosuspend}=="0"
ATTRS{power/autosuspend_delay_ms}=="0"
ATTRS{power/connected_duration}=="71736870"
ATTRS{power/control}=="auto"
ATTRS{power/level}=="auto"
ATTRS{power/runtime_active_time}=="1309771"
ATTRS{power/runtime_status}=="suspended"
ATTRS{power/runtime_suspended_time}=="70427094"
ATTRS{power/wakeup}=="disabled"
ATTRS{power/wakeup_abort_count}==""
ATTRS{power/wakeup_active}==""
ATTRS{power/wakeup_active_count}==""
ATTRS{power/wakeup_count}==""
ATTRS{power/wakeup_expire_count}==""
ATTRS{power/wakeup_last_time_ms}==""
ATTRS{power/wakeup_max_time_ms}==""
ATTRS{power/wakeup_total_time_ms}==""
ATTRS{product}=="xHCI Host Controller"
ATTRS{quirks}=="0x0"
ATTRS{removable}=="unknown"
ATTRS{remove}=="(not readable)"
ATTRS{rx_lanes}=="1"
ATTRS{serial}=="0000:00:14.0"
ATTRS{speed}=="480"
ATTRS{tx_lanes}=="1"
ATTRS{urbnum}=="4538"
ATTRS{version}==" 2.00"
looking at parent device '/devices/pci0000:00/0000:00:14.0':
KERNELS=="0000:00:14.0"
SUBSYSTEMS=="pci"
DRIVERS=="xhci_hcd"
ATTRS{ari_enabled}=="0"
ATTRS{broken_parity_status}=="0"
ATTRS{class}=="0x0c0330"
ATTRS{consistent_dma_mask_bits}=="64"
ATTRS{d3cold_allowed}=="1"
ATTRS{device}=="0x8c31"
ATTRS{dma_mask_bits}=="64"
ATTRS{driver_override}=="(null)"
ATTRS{enable}=="1"
ATTRS{irq}=="30"
ATTRS{local_cpulist}=="0-7"
ATTRS{local_cpus}=="ff"
ATTRS{msi_bus}=="1"
ATTRS{msi_irqs/30}=="msi"
ATTRS{numa_node}=="-1"
ATTRS{power/control}=="on"
ATTRS{power/runtime_active_time}=="71737713"
ATTRS{power/runtime_status}=="active"
ATTRS{power/runtime_suspended_time}=="0"
ATTRS{power/wakeup}=="enabled"
ATTRS{power/wakeup_abort_count}=="0"
ATTRS{power/wakeup_active}=="0"
ATTRS{power/wakeup_active_count}=="0"
ATTRS{power/wakeup_count}=="0"
ATTRS{power/wakeup_expire_count}=="0"
ATTRS{power/wakeup_last_time_ms}=="0"
ATTRS{power/wakeup_max_time_ms}=="0"
ATTRS{power/wakeup_total_time_ms}=="0"
ATTRS{power_state}=="D0"
ATTRS{remove}=="(not readable)"
ATTRS{rescan}=="(not readable)"
ATTRS{resource0}=="(not readable)"
ATTRS{revision}=="0x04"
ATTRS{subsystem_device}=="0x2211"
ATTRS{subsystem_vendor}=="0x17aa"
ATTRS{vendor}=="0x8086"
looking at parent device '/devices/pci0000:00':
KERNELS=="pci0000:00"
SUBSYSTEMS==""
DRIVERS==""
ATTRS{power/control}=="auto"
ATTRS{power/runtime_active_time}=="0"
ATTRS{power/runtime_status}=="unsupported"
ATTRS{power/runtime_suspended_time}=="0"
ATTRS{waiting_for_supplier}=="0"
호출된 스크립트는 그리 복잡하지 않습니다. 이는 기본적으로 pkill다른 프로세스에 신호를 보내는 호출을 포함하는 한 줄의 코드입니다 .
장치가 연결될 때 스크립트가 호출되지 않는 이유를 이해할 수 없습니다
내 직관에 따르면 이것이 udev 이벤트의 순서와 관련이 있다고 합니다( udevadm monitor의 출력에 따르면 LIFO 모델을 따르는 것 같습니다). 하지만 목표를 벗어났을 수도 있습니다.
내가 무엇을 놓치고 있나요?