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systemd/rules/rules.d/60-persistent-alsa.rules
Lennart Poettering 088fbefafd Revert "sound: include ALSA sound card id in /dev/snd/by-id/ links"
This reverts commit 68bffc607f.

After discussing this with Kay we decided to drop this again as by-id
links only make sense for devices that have a unique serial id. If they
don't any attempts to make them unique have the side effect of
nourishing assumptions by users that cannot be met, as the by-id device
link of a device could differ depending on the history of simultaneously
plugged in device.

So, to make sure that all device nodes follow the same rules for by-id/
symlinks, drop this patch again.
2009-11-09 23:19:04 +01:00

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# do not edit this file, it will be overwritten on update
ACTION!="add|change", GOTO="persistent_alsa_end"
SUBSYSTEM!="sound", GOTO="persistent_alsa_end"
KERNEL!="controlC[0-9]*", GOTO="persistent_alsa_end"
SUBSYSTEMS=="usb", ENV{ID_MODEL}=="", IMPORT{program}="usb_id --export %p"
SUBSYSTEMS=="usb", ENV{ID_IFACE}="$attr{bInterfaceNumber}"
ENV{ID_SERIAL}=="?*", ENV{ID_IFACE}=="?*", SYMLINK+="snd/by-id/$env{ID_BUS}-$env{ID_SERIAL}-$env{ID_IFACE}"
ENV{ID_SERIAL}=="?*", ENV{ID_IFACE}=="", SYMLINK+="snd/by-id/$env{ID_BUS}-$env{ID_SERIAL}"
ENV{ID_PATH}=="", IMPORT{program}="path_id %p"
ENV{ID_PATH}=="?*", SYMLINK+="snd/by-path/$env{ID_PATH}"
LABEL="persistent_alsa_end"