Re: CD writing in future Linux (stirring up a hornets' nest)

From: Joerg Schilling
Date: Thu Jan 26 2006 - 05:26:15 EST


Tomasz Torcz <zdzichu@xxxxxx> wrote:

> > > need to use /dev/hda, but /dev/cdrecorder or whatever. A real user would
> > > likely be using k3b or something graphical though, and just click on his
> > > Hitachi/Plextor/whatever burner. Perhaps some fancy udev rules could
> > > help do this dynamically even.
> >
> > Guess why cdrecord -scanbus is needed.
> >
> > It serves the need of GUI programs for cdrercord and allows them to retrieve
> > and list possible drives of interest in a platform independent way.
>
> GUI programs tend to retrieve this kind of info form HAL
> (http://freedesktop.org/wiki/Software_2fhal)

I am not sure what you like to tell with this.

Programs that depend on specific Linux behavior tend to be non-portable (see
e.g. nautilus on GNOME). Nautilus tries to get e.g. the drive write speeds
by reading /prov/scsi/******. Besides the fact that this is not available
elsewhere, it gives incorrect results because there are a lot of DVD writers
with broken firmware.

Cdrecord implements workarounds for this kind of problems and for this reason,
the most portable solution for a GUI is to use cdrecord to retrieve the
information.

Jörg

--
EMail:joerg@xxxxxxxxxxxxxxxxxxxxxxxxxxx (home) Jörg Schilling D-13353 Berlin
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