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![Yu Watanabe](/assets/img/avatar_default.png)
xHCI host controller may register two (or more?) USB root hubs for USB 2.0 and USB 3.0, and devices under the hubs may have same ID_PATH. So, to avoid the conflict, let's introduce ID_PATH_WITH_USB_REVISION that includes the USB revision. Closes #19406.
29 lines
1.4 KiB
Plaintext
29 lines
1.4 KiB
Plaintext
# do not edit this file, it will be overwritten on update
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ACTION=="remove", GOTO="serial_end"
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SUBSYSTEM!="tty", GOTO="serial_end"
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SUBSYSTEMS=="usb", IMPORT{builtin}="usb_id", IMPORT{builtin}="hwdb --subsystem=usb"
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SUBSYSTEMS=="pci", ENV{ID_BUS}=="", ENV{ID_BUS}="pci", \
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ENV{ID_VENDOR_ID}="$attr{vendor}", ENV{ID_MODEL_ID}="$attr{device}", \
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IMPORT{builtin}="hwdb --subsystem=pci"
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# /dev/serial/by-path/, /dev/serial/by-id/ for USB devices
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KERNEL!="ttyUSB[0-9]*|ttyACM[0-9]*", GOTO="serial_end"
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SUBSYSTEMS=="usb-serial", ENV{.ID_PORT}="$attr{port_number}"
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IMPORT{builtin}="path_id"
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ENV{ID_PATH}=="?*", ENV{.ID_PORT}=="", SYMLINK+="serial/by-path/$env{ID_PATH}"
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ENV{ID_PATH_WITH_USB_REVISION}=="?*", ENV{.ID_PORT}=="", SYMLINK+="serial/by-path/$env{ID_PATH_WITH_USB_REVISION}"
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ENV{ID_PATH}=="?*", ENV{.ID_PORT}=="?*", SYMLINK+="serial/by-path/$env{ID_PATH}-port$env{.ID_PORT}"
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ENV{ID_PATH_WITH_USB_REVISION}=="?*", ENV{.ID_PORT}=="?*", SYMLINK+="serial/by-path/$env{ID_PATH_WITH_USB_REVISION}-port$env{.ID_PORT}"
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ENV{ID_BUS}=="", GOTO="serial_end"
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ENV{ID_SERIAL}=="", GOTO="serial_end"
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ENV{ID_USB_INTERFACE_NUM}=="", GOTO="serial_end"
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ENV{.ID_PORT}=="", SYMLINK+="serial/by-id/$env{ID_BUS}-$env{ID_SERIAL}-if$env{ID_USB_INTERFACE_NUM}"
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ENV{.ID_PORT}=="?*", SYMLINK+="serial/by-id/$env{ID_BUS}-$env{ID_SERIAL}-if$env{ID_USB_INTERFACE_NUM}-port$env{.ID_PORT}"
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LABEL="serial_end"
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