Re: removable media revalidation - udev vs. devfs or static /dev

[Greg KH]

On Sat, Jan 03, 2004 at 11:51:33AM +0300, Andrey Borzenkov wrote:
> > You could make a script that just creates 
> > the device node in /tmp, runs dd on it, and then cleans it all up to
> > force partition scanning.
> >
> 
> You miss the point. When should this script be run? There is no event when you 
> just insert Jaz disk; nor is there any way to trigger revalidation on access 
> to non-existing device like is the case without udev.
> 
> what I aim at - udev needs to provide some extension mechanism to allow 
> arbitrarily scripts to be run.

It does provide that mechanism.  See the CALLOUT rule.  It can run any
program or script when a new device is seen by the kernel.

thanks,

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/