Darren J Moffat <Darren.Moffat at sun.com> wrote:
> > We might need to change the code slightly to express the 4K size in the
> > various ioctls, but that can happen latter when I run into such a
> > device. (The current devices supported by this device driver all use
> > 512 byte blocks.)
>
> My concern is when there are devices that use 4K size blocks instead of
> 512 byte blocks. Is there anything in the architecture of bd that means
> they can't easily be supported by this bd driver ?
What about "odd" (in this case not really odd numbers) sector sizes that
are used on CDs (2336, 2448, 2352)?
What about the 64k physical sector size on BluRay media? Note that we currently
cannot set up a 64k transfer with USCSI on all underlying transports.
DVDs and BluRays support "logical" sector sizes of 2048 bytes but this will
not work with all constraints as there sometimes is a need for aligned
transfers.
J?rg
--
EMail:joerg at schily.isdn.cs.tu-berlin.de (home) J?rg Schilling D-13353 Berlin
js at cs.tu-berlin.de (uni)
joerg.schilling at fokus.fraunhofer.de (work) Blog:
http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily
