On 24 May 2001 21:43:56 -0700, Stephen Williams wrote:
>
> I'm rather accustomed to lists that fill my mailbox until I can't
> stand it, so I'm a little surprised how quiet the linux-hotplug
> list is. I posted a patch to the hotplug scripts to support hot
> remove of USB devices, but I haven't heard praise or protest in a
> few days, so I'll present it here before it gets cold.
>
> Basically, what it does is provide a means for hotplug ``add'' scripts
> to register a remove handler that will automatically be called if
> the device is removed. It shouldn't affect the (already slow) speed
> of the add behavior, and really is a small and simple patch.
>
> This patch applies to the CVS version of libux-hotplug as of last
> weekend.
Hi,
There was some discussion of remove event handling way back when
the early /sbin/hotplug script was getting hashed out. IIRC,
Andrew Morton, David Brownell, Jeff Garzik, Oliver Neukum,
Adam Richter, Keith Owens and others talked a long time about where
races might cause problems. There was general agreement that
handling the remove events in a race-free way was going to be
hard, so folks decided to wait until later. Perhaps it is now
"later" enough. In regards to the removal of drivers that
are unused due to the removal of devices, I think the decision
was that it was fine to let the cron job that removes unused
drivers handle it. For the kinds of other stuff that we'd like
to do when a device is removed, we'll need to figure out what
all needs to be done and how to accomplish it in a race-free
way.
My suspicion is that folks aren't responding because a lot of
attention is currently focused on preparing for the 2.5 tree.
Also, the current hotplug stuff seems to meet a lot of base-
level needs, so perhaps it has fallen off of peoples' radar
screens a bit. I know David Brownell has his plate full with
USB 2.0 work (and probably other stuff, too).
So, I'd like to encourage you to keep calling for some feedback,
even though it might take a while to get it. It may be that
you'll find it much easier to get active participation in
another month or so, when the 2.5 tree opens.
Cheers,
Miles
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