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I've found a /dev/video4linux node and just realized, that libsysfs
searches all subdirs for an attribute name.
So it found /class/video4linux/video0/dev for the videodev class
creation event /class/video4linux and created a node.
Just ignore the SUBSYSTEM="class" events now.
Remove udev.bus, cause it's currently unused and newer kernels will pass
it in the hotplug environment as PHYSDEVBUS.
Remove udev.action, cause it's unused.
Rename udev_set_values() to udev_init_device().
Add UDEV_LOG to the man udev man page. Remove mention of specific
variables from the udevd/udevsend man page as we changed to pass
the whole environment.
Correct printed Usage: of udevtest and udevinfo.
Init the config in udevtest earlier to accept input with and without
the sysfs mount point.
Remove the overwriting of main_argv[] hack and use the values
from the udev object.
Pass the udev object to call_foreach_file().
In the udevstart case, export SUBSYSTEM and UDEVSTART to the
environment.
Here we supress the dev.d/ execution if we didn't change a network
interface's name with a rule. This should solve the issue of two
running dhclients for the same interface, cause the
/etc/dev.d/net/hotplug.dev script that fakes the hotplug event runs
with every udevstart for every interface and fakes a second identical
hotplug event on bootup.
With this patch netif interfaces are no longer stored in the udevdb.
It is not needed, cause we don't have permissions or symlinks :) and
all information is available in sysfs.
This patch also moves the dev_d execution calls out of the
udev_add/udev_remove. As with the former api-cleanup-patch we have
all processed data in one udev struct and can place the execution
calls where needed.
Here is the first patch to cleanup the internal processing of the
various stages of an udev event. It should not change any behavior,
but if your system depends on udev, please always test it before reboot :)
We pass only one generic structure around between add, remove,
namedev, db and dev_d handling and make all relevant data available
to all internal stages. All udev structures are renamed to "udev".
We replace the fake parameter by a flag in the udev structure.
We open the class device in the main binaries and not in udev_add, to
make it possible to use libsysfs for udevstart directory crawling.
The last sleep parameters are removed.
On Tue, Sep 07, 2004 at 12:46:43PM +0200, Kay Sievers wrote:
> On Mon, 2004-09-06 at 20:18 -0700, Tom Rini wrote:
> > I noticed somewhat recently that my enet devices weren't being renamed
> > on boot anymore. I don't quite know when this got broken (or rather, if
> > it was supposed to be working. I swear it worked for me once..), but
> > the following seems to do it.
>
> I think it never worked in the udevstart case. It worked only with the
> hotplug-event-udev, I expect.
>
> > In udev_scan_class(), look for not just
> > %s/%s/dev (which everything with a dev node has), but %s/%s/dev* (both
> > of my enet devices, sis900 & 3c59x only have device) and if that
> > exists, pass this along to udev.
>
> Yeah, network devices don't have a devnode and therefore no "dev", but
> they are all in /sys/class/net/. We may just test if we are there
> instead of the "device" match.
How about something like this. It adds all the net devices without
looking at the attributes and keeps the remaining logic like it is.
It also removes certain levels of indirection and much simplifies the
udevstart process. We surely don't need to open and close the udevdb
for every node while iterating over the list. (We are about 5% faster on
my box)
It's not well tested, so it would be nice if someone can have a look
at it, before a broken udevstart renders any system unbootable.
Here are the missing pieces for udevtest. A simple man page is added,
the blacklist is removed, cause it can't work without having a subsystem.
The Makefile removes all manpages now with a uninstall and installs
udevtest in /usr/bin/.
Any old version from /sbin/ should be deleted by hand.
The only expected argument is the sysfs devpath, here I changed it to be
more tolerant to the input. The path may now be specified with or
without a leading slash and optionally with the /sys moutpoint prepended.
I hope this will end the confusion about the use of this program :)
Here I try to make the style a bit more consistant in the different
files, so that new patches just copy the 'right' one :)
Some "magic" numbers are replaced and udevtest.c is catched up with udev.
Here we truncate our input strings from the environment to our
defined limit. It's a bit theroretical but better check for it.
It cleans up some magic length definitions and removes the code
duplication in udev, udevtest and udevsend.
udevd needs to be killed after installation, cause the message size
is changed with this patch.
Should we do this with the 'make install', like we do with the '.udevdb'?
