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Re: udev - easy setup ?

* Jules Dubois <j6bqszk02@sneakemail.com> [2005 Aug 05 01:15 -0500]:
> The message I half-finished writing and accidentally sent, the one that
> mentions "Apple developer documents".  I discovered that the only
> interesting parts of Apple's stuff is extracted from the official USB docs. 
> I sent another message like it but with real information.

Okay, thanks.

> > I've been watching this thread with interest.  So 
> > far I've not tried udev and I'm wondering if it's worth it.
> I think it's worth it, but I use only a small fraction of its capabilities. 
> When I first installed it, I didn't do any sort of configuration.  I didn't
> see any difference in how my system worked, until I looked in /dev where
> the dozens (hundreds?) of device nodes I don't use were gone.

Well, that should restore some inodes back to the system at the very

> I've since created a few rules which while handy and pretty are nothing to
> get excited about.  The OP wants to do the kind of thing for which udev is
> designed.  I use keys like SYSFS{vendor} and these don't meet Uwe's
> requirements.  However, I don't understand enough about USB or kernel
> internals to do more than take an insufficiently educated guess about how
> to proceed.

So what I understand is that udev is a great framework, but it hasn't
been sufficiently implemented in user space to be "plug and play"? 
Perhaps the desktop projects are working on utilizing it.

I don't like comparing Debian and Windows, but here is an experience
from yesterday.  I have an IBM T42 at work without a 3.5" floppy drive,
of course.  Since more of these things are showing up, we decided it
might be wise to get a USB floppy.  We got it yesterday, new in the
box.  I plugged it into the T42 which runs XP, of course, and the OS
picked it right up, assigned it as drive A, and I went right to
formatting a disk in it and copying a file.  Didn't even need the
driver CD.

I realize that Debian provides a base and that works like KNOPPIX and
Ubuntu are building on Debian to provide a more user centric
distribution.  But, this USB stuff is so basic that it should "just
work".  If Windows isn't confused and can distinguish between a USB
floppy and assign it as A and then I can install my Lexar Jump Drive
and it can figure out that it's different and assign it as E and then I
can attach my portable CD/DVD RW drive and assign it as F, we in the
Linux community should be able to do that as well with minimal hassle.

On the other hand, I just yanked the Jump Drive while a file manager
had it open and that has apparently caused a major problem.  I have
error boxes popping open and diagnostic information coming up, so in
that regard, I know that Linux is much more robust.

Right now I have some custom Hotplug scripts for my Jump Drive and my
camera.  They are a kludge, but they get the job done.

- Nate >>

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