Re: Which node has the device been bound to?

[Oliver Neukum <oliver@neukum.name>]

Am Dienstag, 4. Juni 2002 01:16 schrieb Greg KH:
> On Tue, Jun 04, 2002 at 01:05:09AM +0200, Oliver Neukum wrote:
> > > > I can't come up with anything better than a set of ioctls that
> > > > return the contents of the individual files. And I know that this
> > > > is ugly. I don't claim that this is a good solution, just that
> > > > it's the only solution I have and that there's a race otherwise.
> > > > You simply cannot use names, thus parsing files for the name of
> > > > the node won't work.
> > >
> > > Or we could just drop the whole idea of using ioctl() and live with
> > > the "instability" of parsing a filesystem :)
> >
> > There is no such thing is an acceptable race condition.
>
> Then use the device tree in driverfs as a "hint" as to where you might
> find your device.  Then rely on other things (fs labels, usb serial
> numbers, ethernet mac addresses, etc.) to verify if the device you are
> talking to really is the one you think it is.

The project started out to solve the problem once and forever and now we 
are back at several heuristics.
IMHO this defeats the purpose.

	Regards
		Oliver


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