Subject: Re: /dev/sd*
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Adrian Bunk <bunk@stusta.de>
Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
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Date: Thu, 10 Aug 2006 02:44:51 +0100
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Ar Iau, 2006-08-10 am 00:18 +0200, ysgrifennodd Adrian Bunk:
> > USB storage is real SCSI.
> Real SCSI for a developer, for a user it's USB.

Define SCSI ?

> And things become even more confusing considering that the drive might 
> show up as /dev/sda or /dev/uba depending on the driver used.

Windows people seem to cope ok with C: being IDE and E: being SCSI ;)

> I'm more concerned about the kernel<->userspace interface.

Thats a naming policy matter, udev.

> But I'm still not getting the point why the /dev/sd* namespace has to be 
> used.

Because the block layer approach to major/minor numbers means everything
using sd (ie everything scsi disk protocol) gets the same device naming
scheme.

Alan

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