Re: [PATCH] 2.6.8.1 Mis-detect CRDW as CDROM

[Frank Steiner]

Hi Marc,

Marc Ballarin wrote:

> growisofs and dvd+r-format open the device read-only, even though they try
> to do writes.
>
> Two choices:
> 1) declare all needed commands as safe for read 

yes, that's what I tried, but it had no effect. For instance, I declared

               safe_for_read(GPCMD_READ_FORMAT_CAPACITIES),

which is 0x23, but growisofs still complains with

Aug 18 13:52:21 aiken kernel: THIS IS MY NEW PATCH SCSI-CMD Filter: 0x23 not allowed with read-mode

That's what I don't understand. I think the line above should declare
0x23 as safe for read, but it seems to be ignored.

> (you might as well disable filtering completely...)

Likely I will end up with this :-/


> 2) replace O_RDONLY in dvd+r-tools sources with O_RDWR and recompile
> (that's what I did).

I will check that!

cu,
Frank

--
Dipl.-Inform. Frank Steiner   Web:  http://www.bio.ifi.lmu.de/~steiner/
Lehrstuhl f. Bioinformatik    Mail: http://www.bio.ifi.lmu.de/~steiner/m/
LMU, Amalienstr. 17           Phone: +49 89 2180-4049
80333 Muenchen, Germany       Fax:   +49 89 2180-99-4049

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