Re: CD writing in future Linux (stirring up a hornets' nest)

[Matthias Andree <matthias.andree@gmx.de>]

[stripping Cc: list]

Joerg Schilling schrieb am 2006-01-31:

> Martin Mares <mj@ucw.cz> wrote:
> 
> > > What Linux does is to artificially prevent this view to been seen from outside the
> > > Linux kernel, or to avoid integrating a particular device into a unique SCSI
> > > driver system although it would be apropriate.
> >
> > How exactly does Linux prevent this???
> 
> By not treating ATAPI the same as all other SCSI devices.

Nonsense. cdrecord can access ATAPI devices, fix your libscg device
enumeration.

> > How do you perform -scanbus for TCP/IP? :-)
> 
> There are various programs that do that for you.
> You could e.g. send a ping to the broadcast address in order to find hosts
> that are on the local network.

Responding to broadcast ping, at least when outside the LAN, is
considered a security issue.

> > Scanning for all available CD burners is of course a nice feature, but
> > I don't think it should be implemented by asking all existing SCSI-like
> > devices if they are a CD burner (for example because there can be an
> > almost infinite number of them, given that you can do SCSI-over-IP
> > and other similar tricks). The problem of presenting devices to the
> 
> And while this kind of scanning works in case that you have all devices 
> integrated inside a single SCSI implementation, it does not work for ATAPI
> because someont artificially decided to exclude one single SCSI transport 
> from the global view.

You need to work around this anyhow because the already-released 2.6
kernels will not be going away in the next 2 - 3 years even if 2.6
were fixed today.

-- 
Matthias Andree
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