Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt

Bill Davidsen
2003-11-15T13:15:33Z

On Thu, 13 Nov 2003, Pascal Schmidt wrote:

> On Thu, 13 Nov 2003, Bill Davidsen wrote:
>
> > For a read-only access, I think the size is what's written, while for
> > writing it's the physical size, I think. Does it need to be as complex as
> > having the order depend on the access mode? It seems that a size of zero
> > is correct for a read access to an unwritten media.
>
> Well, there is only one capacity and we cannot tell at the time we
> fetch the capacity from the drive whether the user will use the disk
> read-only or read-write.
>
> In any case, cdrom_read_capacity() is the only thing that works on my
> MO drive, the other methods all fail. So my patch from yesterday changes
> the order of things so that read_capacity is used first to get the
> capacity, and the other methods are allowed to override it's findings
> later on.

And that sounds like the correct thing to do.

--
bill davidsen <davidsen@tmr.com>
CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.