From: Joerg Schilling <schilling@fokus.fraunhofer.de>
Date: Tue, 14 Feb 2006 19:59:19 +0100
To: schilling@fokus.fraunhofer.de, greg@kroah.com
Cc: nix@esperi.org.uk, linux-kernel@vger.kernel.org, davidsen@tmr.com,
       axboe@suse.de
Subject: Re: CD writing in future Linux (stirring up a hornets' nest)
Message-ID: <43F22887.nailCA4XYHC4@burner>
References: <Pine.LNX.4.61.0601251606530.14438@yvahk01.tjqt.qr>
 <20060125153057.GG4212@suse.de> <43D7AF56.nailDFJ882IWI@burner>
 <20060125181847.b8ca4ceb.grundig@teleline.es>
 <20060125173127.GR4212@suse.de> <43D7C1DF.1070606@gmx.de>
 <878xt3rfjc.fsf@amaterasu.srvr.nix> <43ED005F.5060804@tmr.com>
 <20060210235654.GA22512@kroah.com> <43F0891E.nailKUSCGC52G@burner>
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In-Reply-To: <20060213154921.GA22597@kroah.com>
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Greg KH <greg@kroah.com> wrote:

> On Mon, Feb 13, 2006 at 02:26:54PM +0100, Joerg Schilling wrote:
> > Greg KH <greg@kroah.com> wrote:
> > 
> > > On Fri, Feb 10, 2006 at 04:06:39PM -0500, Bill Davidsen wrote:
> > > > 
> > > > The kernel could provide a list of devices by category. It doesn't have 
> > > > to name them, run scripts, give descriptions, or paint them blue. Just a 
> > > > list of all block devices, tapes, by major/minor and category (ie. 
> > > > block, optical, floppy) would give the application layer a chance to do 
> > > > it's own interpretation.
> > >
> > > It does so today in sysfs, that is what it is there for.
> > 
> > Do you really whant libscg to open _every_ non-directory file under /sys?
>
> Of course not.  Here's one line of bash that gets you the major:minor
> file of every block device in the system:
> 	block_devices="$(echo /sys/block/*/dev /sys/block/*/*/dev)"
>
> The block devices are all in a specific location.

Are you sure you understand the problem?

It isd most unlikely that all SCSI devices are there.

J?rg

-- 
 EMail:joerg@schily.isdn.cs.tu-berlin.de (home) J?rg Schilling D-13353 Berlin
       js@cs.tu-berlin.de                (uni)  
       schilling@fokus.fraunhofer.de     (work) Blog: http://schily.blogspot.com/
 URL:  http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
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