diff options
| author | Adam Goode <agoode@google.com> | 2015-04-22 21:05:38 -0400 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2015-04-23 13:40:54 +0200 |
| commit | 0414af1dfe99fe7bd58a7d93427cb6762895729d (patch) | |
| tree | 7f30502e40a353089b6a8946844911709fda746a /rules/78-sound-card.rules | |
| parent | 038f9863e22295d0e22b3b79a6d54f7086525ba2 (diff) | |
rules: Don't use ALSA card id in ID_ID
The ALSA id sysattr is generated by the sound subsystem and is not
a stable identifier. It is generated though some string manipulation
then made unique if there is a conflict. This means that it is
enumeration-dependent and shouldn't be used for ID_ID.
If ID_ID is supposed to be system-unique, it is not already since
for firewire it is generated from the guid and there are broken
firewire devices that have duplicate guids across devices.
This is tracked for PulseAudio at
https://bugs.freedesktop.org/show_bug.cgi?id=90129.
This is essentially a revert of systemd
ed1b2d9fc7d5c5bfe2a67b0b8ff9e5ea8694268e.
Diffstat (limited to 'rules/78-sound-card.rules')
| -rw-r--r-- | rules/78-sound-card.rules | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/rules/78-sound-card.rules b/rules/78-sound-card.rules index 295f490150..bd7a9948c2 100644 --- a/rules/78-sound-card.rules +++ b/rules/78-sound-card.rules @@ -49,8 +49,8 @@ SUBSYSTEMS=="firewire", GOTO="skip_pci" SUBSYSTEMS=="pci", ENV{ID_BUS}="pci", ENV{ID_VENDOR_ID}="$attr{vendor}", ENV{ID_MODEL_ID}="$attr{device}" LABEL="skip_pci" -ENV{ID_SERIAL}=="?*", ENV{ID_USB_INTERFACE_NUM}=="?*", ENV{ID_ID}="$env{ID_BUS}-$env{ID_SERIAL}-$env{ID_USB_INTERFACE_NUM}-$attr{id}" -ENV{ID_SERIAL}=="?*", ENV{ID_USB_INTERFACE_NUM}=="", ENV{ID_ID}="$env{ID_BUS}-$env{ID_SERIAL}-$attr{id}" +ENV{ID_SERIAL}=="?*", ENV{ID_USB_INTERFACE_NUM}=="?*", ENV{ID_ID}="$env{ID_BUS}-$env{ID_SERIAL}-$env{ID_USB_INTERFACE_NUM}" +ENV{ID_SERIAL}=="?*", ENV{ID_USB_INTERFACE_NUM}=="", ENV{ID_ID}="$env{ID_BUS}-$env{ID_SERIAL}" IMPORT{builtin}="path_id" |