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

[Jens Axboe]

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. 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.

-- 
Jens Axboe

-
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/