-These things will change in future udev versions:
- o make DRIVER== to match only the event device
- (DRIVERS must be used, we currently translate it to DRIVERS and print
- a warning if DRIVER is used)
-
- o warn if PHYSDEV* keys are used in ENV keys
- (they are deprecated and will be removed from a future kernel)
-
- o warn if any path component is used in a ATTR{}, ATTRS{},
- $attr{} key, like ATTR{device/<file>}==
- (parent attributes must not referenced directly in rules or tools,
- udev finds the parents and makes them available, which can be matched
- with the normal keys)