Re: Brasero and CD-Rs

[Philippe Rouquier <bonfire-app wanadoo fr>]

Le lundi 28 janvier 2008 à 02:06 -0500, Joe Marcus Clarke a écrit :
> I have been working on porting the Brasero medium code to use FreeBSD's
> CAM as opposed to Linux's SG SCSI interface, and I have completed
> porting of all methods in burn-medium.c.  However, users are reporting
> an interesting problem.  They are getting insufficient space errors
> trying to burn files onto a blank CD-R.  I went over the burn-medium.c
> code, and it appears that regardless of SCSI backend, the code does not
> support CD-Rs (only CD-RW and up).  Is this correct, or have I missed
> something.
>
> A full brasero debug output can be found at
> http://people.freebsd.org/~mezz/brasero.txt .  I feel I'm close to a
> working port, but there are some issues that still need to be worked
> out.  Thanks.
>
> Joe
>
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Hi Joe, thanks for doing this work and sorry for the delay.
To answer your question yes, -R media (DVD+-/CD) are supposed to work with burn-medium.c current version (I'm speaking about 0.7.0 & 0.7.1) and linux as it can be found in SVN trunk/stable.
I read your log; it's strange since it seems to give up quite early on getting the medium profile without any error. I have a question btw, given your debug text you seem to use an old version of burn-medium.c, is that so?
Last comment, in your first mail you said you ported all code from burn-medium.c to CAM interface. I don't understand it here since in this file there is nothing linux specific (at least in theory). When I wrote all SCSI code (theoretically) I tried to separate all code as much as I could so that to support a new OS one would just have to write a file that forwards the SCSI commands through the OS kernel SCSI interface (CAM in your case if I understand it well). For linux, the files responsible for dealing with linux SCSI interface are the scsi-sg.h/c files; those are the only files that should be linux specific (maybe scsi-command.h as well). All the rest of the SCSI files are just for SCSI functions and they should work whatever the OS as they are standardized.
So to make it short (sorry if I was tedious or if I told you something you already knew), what were the changes you made to burn-medium.c?

Thanks,
Philippe