lkml.org 
[lkml]   [2003]   [Jan]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: IDs
>> The id is not suitable as a user space name. Moreover,
>> it is a heuristic only, and user space needs unambiguous names.

> If we had a complete white/black list of devices with/without a unique id,
> there would be no ambiguity.

You mean for the devices on the white list.
But most devices will not be on the white list.

Our perceptions differ, I think. My impression is that chaos
is the norm, and well-behaved devices are the exception.
I find very good behaviour in fixed hard disks.
Stuff by Maxtor, Seagate, IBM, etc - a very small collection
of very experienced manufacturers with high quality products.
SCSI CDROM drives or tape drives or scanners are messier.
USB storage devices are much messier - very basic parts of the
protocol are regularly broken.
So to me the approach of an id together with a blacklist
seems unworkable.

As you say - we can make a best effort and get a string that
with some luck identifies the device uniquely. But no guarantees
given.

Maybe that again means that the S/Z distinction can be dropped.

Andries
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:32    [W:0.126 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site