We can not predict the major/minor of non-existing devices:
$ grep . /sys/class/block/sd*/dev
/sys/class/block/sda1/dev:259:524288
/sys/class/block/sda2/dev:259:262144
/sys/class/block/sda3/dev:259:786432
/sys/class/block/sda4/dev:259:131072
/sys/class/block/sda/dev:259:0
/sys/class/block/sdb/dev:259:655360
/sys/class/block/sdc/dev:259:393216
If this functionality is still needed for some broken hardware, it needs to be
solved with a tool not part of the udev package. Because such option is unreliable
and unsafe to use.
The ID_CLASS property on input devices has been replaced by the more accurate
set of flags ID_INPUT_{KEYBOARD,KEYS,MOUSE,TOUCHPAD,TABLET,JOYSTICK}.
Rewrite 60-persistent-input.rules to use the new properties now and not export
ID_CLASS any more, since it is not used by anything else any more.
Add note about migration to NEWS, in case this is being used in custom rules.
The kernel IDE drivers get deprecated now:
http://article.gmane.org/gmane.linux.ide/43151
Almost everybody has switched over to libata devices long ago.
Recent services do not work with the now deprecated IDE drivers
at all and require libata drivers and SCSI infrastructure.
Systems who care about the old stuff need to add the rules to the
compat rules.
There is no way to ignore an event these days. Libudev events can
not be suppressed. It only prevents RUN keys from being executed,
which results in an inconsistent behavior in current setups.
Its use breaks too many things which expect to be run from independent
later rules, and is an idication that something needs to be fixed
properly instead.
With well defined and kernel-supplied node names, we no longer need
to support a possible stack of conflicting symlinks and node names.
Only symlinks with identical names can be claimed by multiple devices.
This shrinks the former /dev/.udev/names/ significantly.
Also the /dev/{block,char}/MAJ:MIN" links are excluded from the name
stack - they are unique and can not conflict.
