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873be895ed
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.
23 lines
1.1 KiB
Plaintext
23 lines
1.1 KiB
Plaintext
# do not edit this file, it will be overwritten on update
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ACTION=="remove", GOTO="persistent_v4l_end"
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SUBSYSTEM!="video4linux", GOTO="persistent_v4l_end"
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ENV{MAJOR}=="", GOTO="persistent_v4l_end"
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IMPORT{program}="v4l_id $devnode"
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SUBSYSTEMS=="usb", IMPORT{builtin}="usb_id"
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KERNEL=="video*", ENV{ID_SERIAL}=="?*", SYMLINK+="v4l/by-id/$env{ID_BUS}-$env{ID_SERIAL}-video-index$attr{index}"
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# check for valid "index" number
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TEST!="index", GOTO="persistent_v4l_end"
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ATTR{index}!="?*", GOTO="persistent_v4l_end"
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IMPORT{builtin}="path_id"
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KERNEL=="video*|vbi*", ENV{ID_PATH}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH}-video-index$attr{index}"
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KERNEL=="video*|vbi*", ENV{ID_PATH_WITH_USB_REVISION}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH_WITH_USB_REVISION}-video-index$attr{index}"
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KERNEL=="audio*", ENV{ID_PATH}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH}-audio-index$attr{index}"
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KERNEL=="audio*", ENV{ID_PATH_WITH_USB_REVISION}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH_WITH_USB_REVISION}-audio-index$attr{index}"
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LABEL="persistent_v4l_end"
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