From 0414af1dfe99fe7bd58a7d93427cb6762895729d Mon Sep 17 00:00:00 2001 From: Adam Goode Date: Wed, 22 Apr 2015 21:05:38 -0400 Subject: 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. --- rules/78-sound-card.rules | 4 ++-- 1 file 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" -- cgit v1.2.3-54-g00ecf