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

[Andrey Borzenkov <arvidjaar@mail.ru>]

On Wednesday 07 January 2004 13:31, Jens Axboe wrote:
> On Wed, Jan 07 2004, Olaf Hering wrote:
> >  On Wed, Jan 07, Jens Axboe wrote:
> > > On Wed, Jan 07 2004, Olaf Hering wrote:
> > > >  On Wed, Jan 07, Jens Axboe wrote:
> > > > > No need to put it in the kernel, user space fits the bil nicely. I
> > > > > don't see how this would lead to IO errors?
> > > >
> > > > Ok, how should it be done on my SCSI and parallel port ZIP? An ATAPI
> > > > ZIP
> >
> >         ^^^
> >
> > "How"? We need a sane way to deal with removeable medias.
> > Do you have example code that can be put into the udev distribution?
>
> Depends. If the device supports event status notification, then that is
> what should be used. 

Would you please give some pointers to information about "event status 
notification".

thank you

> If not, you have to hack some code around test unit 
> ready (checking the sense info on return, if failed). You'd most likely
> want to do this manually, with SG_IO.