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

Jens Axboe
2004-01-07T10:54:44Z

On Wed, Jan 07 2004, Andrey Borzenkov wrote:
> 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".

Sure, I'm talking about GPCMD_GET_EVENT_STATUS_NOTIFICATION (see
cdrom.h), opcode 0x4a in the mt fuji or mmc docs. You can fetch here:

ftp://ftp.avc-pioneer.com/Mtfuji5/

--
Jens Axboe