[pulseaudio-tickets] [Bug 90129] New: ID_ID in udev is about to change

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90129

            Bug ID: 90129
           Summary: ID_ID in udev is about to change
           Product: PulseAudio
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: modules
          Assignee: pulseaudio-bugs at lists.freedesktop.org
          Reporter: adam at spicenitz.org
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net

ID_ID in udev will no longer append the ALSA "id" sysattr. This means ID_ID
will change to a new string after this update, but no longer be system unique
for USB. (It is theoretically not system unique for firewire already, since
broken devices can ship with a duplicate guid and no checking is done.)

The ALSA id sysattr is derived from some internal properties of the device by
the kernel. It is actually a read/write attribute, but ALSA enforces uniqueness
systemwide. This means that currently, ID_ID is enumeration dependent in the
case of multiple identical hardware.

Please see this discussion:
http://lists.freedesktop.org/archives/systemd-devel/2015-April/030925.html

This is essentially a revert of systemd
ed1b2d9fc7d5c5bfe2a67b0b8ff9e5ea8694268e.

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