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: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected]
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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