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udev 098 release

From:  Kay Sievers <kay.sievers@vrfy.org>
To:  hotplug <linux-hotplug-devel@lists.sourceforge.net>
Subject:  [ANNOUNCE] udev 098 release
Date:  Wed, 23 Aug 2006 01:56:54 +0200

Here comes a new udev version. Thanks to everybody who
helped finding bugs or sending fixes.

The tarball can be found here:
  ftp://ftp.kernel.org/pub/linux/utils/kernel/hotplug

The development repository can be found here:
  http://www.kernel.org/git/?p=linux/hotplug/udev.git;a=sum...

udev 098
========
Bugfixes.

Renaming of some key names (the old names still work):
BUS -> SUBSYSTEMS, ID -> KERNELS, SYSFS -> ATTRS, DRIVER -> DRIVERS.
(The behavior of the key DRIVER will change soon in one of the next
releases, to match only the event device, please switch to DRIVERS
instead. If DRIVER is used, it will behave like DRIVERS, but an error
is logged.
With the new key names, we have a more consistent and simpler scheme.
We can match the properties of the event device only, with: KERNEL,
SUBSYSTEM, ATTR, DRIVER. Or include all the parent devices in the match,
with: KERNELS, SUBSYSTEMS, ATTRS, DRIVERS. ID, BUS, SYSFS, DRIVER are no
longer mentioned in the man page and should be switched in the rule
files.

ATTR{file}="value" can be used now, to write to a sysfs file of the
event device. Instead of:
  ..., SYSFS{type}=="0|7|14", RUN+="/bin/sh -c 'echo 60 > /sys$$DEVPATH/timeout'"
we now can do:
  ..., ATTR{type}=="0|7|14", ATTR{timeout}="60"

All the PHYSDEV* keys are deprecated and will be removed from a
future kernel:
  PHYDEVPATH -    is the path of a parent device and should not be
                  needed at all.
  PHYSDEVBUS -    is just a SUBSYSTEM value of a parent, and can be
                  matched with SUBSYSTEMS==
  PHYSDEVDRIVER - for bus devices it is available as ENV{DRIVER}.
                  Newer kernels will have DRIVER in the environment,
                  for older kernels udev puts in. Class device will
                  no longer carry this property of a parent and
                  DRIVERS== can be used to match such a parent value.
Note that ENV{DRIVER} is only available for a few bus devices, where
the driver is already bound at device event time. On coldplug, the
events for a lot devices are already bound to a driver, and they will have
that value set. But on hotplug, at the time the kernel creates the device,
it can't know what driver may claim the device after that, therefore
in most cases it will be empty.

Failed events should now be re-triggered with:
   udevtrigger --retry-failed.
Please switch to this command, so we keep the details of the /dev/.udev/failed/
files private to the udev tools. We may need to switch the current symlink
target, cause some obviously broken tools try to scan all files in /dev
including /dev/.udev/, find the links to /sys and end up stat()'ing sysfs files
million times. This takes ages on slow boxes.

The udevinfo attribute walk (-a) now works with giving a device node
name (-n) instead of a devpath (-p). The query now always works, also when
no database file was created by udev.

The built-in /etc/passwd /etc/group parser is removed, we always depend on
getpwnam() and getgrnam() now. One of the next releases will depend on
fnmatch() and may use getopt_long().


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