Re: udev and dbus

[Kay Sievers <kay.sievers@vrfy.org>]

On Thu, 2004-03-11 at 19:32, Greg KH wrote:
> On Thu, Mar 11, 2004 at 07:12:55PM +0100, Kay Sievers wrote:
> > 
> > I expect lot of lazy people to put their scripts in there, cause it's so
> > comfortable to live inside the serialized hotplug events.
> 
> But people want to know about the device node creation and removal, they
> don't care about the "raw" hotplug events.  They want udev to handle the
> raw hotplug events for them.

I don't agree.

> > Something like this:
> > "Nice, I can mount my USB-stick with udev.d/ right after udev has
> > created my partition node, cause the scsi.agent was too fast..."
> 
> No, how can scsi.agent know about what the device node name was?  It
> can't.

udevinfo! That's what it's made for :)

> Lots of people have been asking me about the ability to run "post" type
> scripts after udev has named the device (or removed it.)  With this
> proposal, people could get those udev messages easily (actually multiple
> people could, which is even better.)  It would also allow us to rip out
> both the SELinux and DBUS code from udev itself and implement those with
> /etc/udev.d/ programs instead.

Yes, perfectly right, but we can do it with /sbin/hotplug.
Just make udevsend not return until the nodes are created.
And then call anything you like.

> Which, in the end, would make udev itself simpler, and more resilient
> over time for new requests from new programs/system notification
> buses/security models/etc...
> 
> Does that make more sense?

No. :)

thanks,
Kay



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