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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2023-05-01 19:28:35 +0200 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2023-05-20 07:27:10 +0200 |
| commit | 873be895ed1fe65010fb84c6b71e2ec0a6b6fc91 (patch) | |
| tree | 4dc0f229a4c4585136f1b06ce516c2df196b2a68 /rules.d/60-persistent-v4l.rules | |
| parent | udev-builtin-path_id: split out add_id_tag() (diff) | |
| download | systemd-873be895ed1fe65010fb84c6b71e2ec0a6b6fc91.tar.xz systemd-873be895ed1fe65010fb84c6b71e2ec0a6b6fc91.zip | |
udev: add USB revision in ID_PATH
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.
Diffstat (limited to 'rules.d/60-persistent-v4l.rules')
| -rw-r--r-- | rules.d/60-persistent-v4l.rules | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/rules.d/60-persistent-v4l.rules b/rules.d/60-persistent-v4l.rules index 93c5ee8c27..071650a45b 100644 --- a/rules.d/60-persistent-v4l.rules +++ b/rules.d/60-persistent-v4l.rules @@ -14,7 +14,9 @@ TEST!="index", GOTO="persistent_v4l_end" ATTR{index}!="?*", GOTO="persistent_v4l_end" IMPORT{builtin}="path_id" -ENV{ID_PATH}=="?*", KERNEL=="video*|vbi*", SYMLINK+="v4l/by-path/$env{ID_PATH}-video-index$attr{index}" -ENV{ID_PATH}=="?*", KERNEL=="audio*", SYMLINK+="v4l/by-path/$env{ID_PATH}-audio-index$attr{index}" +KERNEL=="video*|vbi*", ENV{ID_PATH}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH}-video-index$attr{index}" +KERNEL=="video*|vbi*", ENV{ID_PATH_WITH_USB_REVISION}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH_WITH_USB_REVISION}-video-index$attr{index}" +KERNEL=="audio*", ENV{ID_PATH}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH}-audio-index$attr{index}" +KERNEL=="audio*", ENV{ID_PATH_WITH_USB_REVISION}=="?*", SYMLINK+="v4l/by-path/$env{ID_PATH_WITH_USB_REVISION}-audio-index$attr{index}" LABEL="persistent_v4l_end" |