linux-kernel - Re: [PATCH update] SCSI: update Kconfig help text to indicate SCSI core's widespread usage

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Date:	Sat, 15 Sep 2007 15:19:36 +0200
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Adrian Bunk <bunk@...nel.org>
CC:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>,
	James Bottomley <james.bottomley@...eleye.com>,
	linux-scsi@...r.kernel.org, Jeff Garzik <jeff@...zik.org>,
	Andi Kleen <andi@...stfloor.org>,
	Folkert van Heusden <folkert@...heusden.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH update] SCSI: update Kconfig help text to indicate SCSI
 core's widespread usage

Adrian Bunk wrote:
> On Fri, Sep 14, 2007 at 11:14:21PM +0200, Stefan Richter wrote:
>> +	  You need it
>> +	  - for classic parallel SCSI hardware,
>> +	  - for newer SCSI transports such as Fibre Channel, FireWire storage,
>> +	    SAS, or iSCSI,
>> +	  - for non-SCSI hardware which speaks SCSI protocols, such as USB
>> +	    storage devices or the parallel port version of Iomega Zip drive,
> 
> 
> but not for CONFIG_BLK_DEV_UB
> 
> 
>> +	  - for non-SCSI hardware whose drivers translate from and to SCSI
>> +	    protocols, most notably all Serial ATA drivers, and Parallel ATA
>> +	    via the ATA configuration option.
> 
> 
> but not for CONFIG_BLK_DEV_IDE_SATA

Well, one could add a

	You don't need it
	- for x,
	- for y.

bullet list.

...
> You expect all kconfig users to read and completely understand this?

I occasionally write documentation without the expectation that every
potential user will read and understand it.

> Although it's no longer required that the user sees the CONFIG_SCSI 
> option at all since we can determine automaically when it's required
> and when not?

Maybe you can hide CONFIG_SCSI, but you still need to provide the above
information --- then under the sd, sr, st, sg options, which may
actually be the better places although it increases redundancy.
-- 
Stefan Richter
-=====-=-=== =--= -====
http://arcgraph.de/sr/
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