From: Mark Lord <liml@rtr.ca>
To: Adrian Bunk <bunk@stusta.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: /dev/sd*
Date: Wed, 09 Aug 2006 17:40:18 -0400 [thread overview]
Message-ID: <44DA5642.6090804@rtr.ca> (raw)
In-Reply-To: <20060809212124.GC3691@stusta.de>
Adrian Bunk wrote:
>
> It might be a bit out of the scope of this thread, but why do some many
> subsystems use the /dev/sd* namespace?
Because when those subsystems were first written, the only way one could install
most major distros was to use /dev/hd* or /dev/sd* as the device name.
This is still the case with many distros, though udev is helping get rid
of the hardcoding as time moves on.
So libata, USB, and firewire all were implemented as SCSI low-level drivers,
(rather than as independent block drivers), and thus inherited the /dev/sd* namespace.
They were not implemented as IDE low-level drivers, because the IDE subsystem
was never designed for hot-pluggable devices.
Cheers
next prev parent reply other threads:[~2006-08-09 21:40 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-09 17:29 Merging libata PATA support into the base kernel Alan Cox
2006-08-09 20:16 ` Mark Lord
2006-08-10 6:13 ` Jeff Garzik
2006-08-10 6:20 ` Jan Engelhardt
2006-08-10 6:25 ` Olaf Hering
2006-08-11 15:47 ` Mark Lord
2006-08-15 13:31 ` Matthieu CASTET
2006-08-15 13:35 ` Tejun Heo
2006-08-15 14:01 ` Jeff Garzik
2006-08-09 21:21 ` /dev/sd* Adrian Bunk
2006-08-09 21:40 ` Mark Lord [this message]
2006-08-09 22:01 ` /dev/sd* Alan Cox
2006-08-09 22:18 ` /dev/sd* Adrian Bunk
2006-08-10 1:44 ` /dev/sd* Alan Cox
2006-08-10 6:19 ` /dev/sd* Jan Engelhardt
2006-08-10 4:46 ` /dev/sd* Greg KH
2006-08-10 12:36 ` /dev/sd* Gabor Gombas
2006-08-10 12:37 ` /dev/sd* Jeff Garzik
2006-08-17 3:17 ` /dev/sd* Lee Trager
2006-08-17 7:58 ` /dev/sd* Michael Tokarev
2006-08-17 8:10 ` /dev/sd* Jan Engelhardt
2006-08-17 8:42 ` /dev/sd* Alan Cox
2006-08-17 8:01 ` /dev/sd* Jan Engelhardt
2006-08-17 8:29 ` /dev/sd* Lee Trager
2006-08-17 9:21 ` /dev/sd* Jan Engelhardt
2006-08-18 7:11 ` /dev/sd* Seewer Philippe
2006-08-18 8:52 ` /dev/sd* Jan Engelhardt
2006-08-18 9:19 ` /dev/sd* Tejun Heo
2006-08-18 14:57 ` /dev/sd* Alan Cox
2006-08-18 15:51 ` /dev/sd* Jan Engelhardt
2006-08-18 16:47 ` /dev/sd* Lee Revell
2006-08-18 17:02 ` /dev/sd* Alan Cox
2006-08-21 6:04 ` /dev/sd* Lee Trager
2006-08-21 6:17 ` /dev/sd* Jan Engelhardt
2006-08-18 12:45 ` /dev/sd* Bill Davidsen
2006-08-18 15:48 ` /dev/sd* Jan Engelhardt
2006-08-19 0:15 ` /dev/sd* Gabor Gombas
2006-08-17 8:45 ` /dev/sd* Alan Cox
2006-08-10 6:24 ` Merging libata PATA support into the base kernel Andi Kleen
2006-08-10 12:37 ` Alan Cox
2006-08-10 12:20 ` Jens Axboe
2006-08-10 14:14 ` Alan Cox
2006-08-10 13:59 ` Jens Axboe
2006-08-10 15:54 ` Alan Cox
2006-08-10 19:02 ` Jason Lunz
2006-08-10 19:40 ` Rafael J. Wysocki
2006-08-17 3:26 ` Lee Trager
2006-08-17 9:18 ` Pavel Machek
2006-08-17 9:52 ` Alan Cox
2006-08-17 9:45 ` Pavel Machek
2006-08-17 11:51 ` Alan Cox
2006-08-18 3:38 ` Lee Trager
2006-08-18 3:57 ` Lee Trager
2006-08-18 16:01 ` Alan Cox
2006-08-18 19:22 ` Lee Trager
2006-08-18 20:50 ` Alan Cox
2006-08-19 8:17 ` Lee Trager
2006-08-21 0:44 ` Lee Trager
2006-08-10 19:47 ` Jens Axboe
2006-08-10 19:54 ` Rafael J. Wysocki
2006-08-11 15:48 ` Mark Lord
2006-08-10 22:27 ` Krzysztof Halasa
2006-08-24 3:31 ` Albert Lee
2006-08-24 3:38 ` Jeff Garzik
2006-08-24 4:13 ` Doug Maxey
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