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Interface for SCSI transactions ?

From: Thomas Schmitt
Subject: Interface for SCSI transactions ?
Date: Thu, 07 Apr 2011 16:17:13 +0200


i would like to explore the possibilities to let GNU xorriso burn
CD, DVD or BD media on GNU/Hurd.

xorriso uses libburn which directly performs SCSI transactions
with optical drives.
Currently it supports the generic SCSI interfaces of
GNU/Linux (SG_IO), FreeBSD (CAM) and Solaris (uscsi).

xorriso and its libraries already get compiled for hurd-386 on
Debian buildd.
But they use a dummy SCSI adapter and can only operate on files,
not on MMC drives. The porting task would be to derive a Hurd system
adapter from the ones for Linux, FreeBSD, Solaris or libcdio.

The SCSI gestures of CD/DVD/BD burning are described in 

Before trying to add Debian hurd-i386 to the systems on my amd64
test machine, i would like to check out whether there is documentation
or an interested tutor for the tasks of listing all MMC drives, getting
(exclusive) access to a drive, sending SCSI commands, getting reply
data and error indications.

Luxury would of course be a remote account on a machine where i am
allowed to cautiously grope a DVD drive. It would not have to be
a burner. The job is done as soon as i get the drive listed and can
inquire its manufacturer information.

Have a nice day :)


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