From: Markus Lidel <Markus.Lidel@shadowconnect.com>
To: Greg KH <gregkh@suse.de>
Cc: Christoph Hellwig <hch@lst.de>, linux-kernel@vger.kernel.org
Subject: Re: sysfs abuse in recent i2o changes
Date: Tue, 28 Jun 2005 20:08:20 +0200 [thread overview]
Message-ID: <42C19214.6070708@shadowconnect.com> (raw)
In-Reply-To: <20050628162125.GA9239@suse.de>
Hello,
Greg KH wrote:
> On Tue, Jun 28, 2005 at 05:02:41PM +0200, Markus Lidel wrote:
>>I know, but i hopefully also have a good reason to do so... First, the
>>attributes provided through these functions are for accessing the
>>firmware... The controller has a little limitation, it could only handle
>>64 blocks, but sysfs only have 4k...
>>Now there are two options:
>>1) when writing: read a 64k block, merge it with the 4k block and write
>>it back, when reading: read a 64k block and only return the needed 4k block.
>>2) extend the sysfs attribute to allow 64k blocks
>>IMHO the first is not a very good solution, because for a 64k block it
>>has to be written 16 times...
>>Of course if someone finds a better solution i would be glad to hear
>>about it...
> Use the binary file interface of sysfs, which was written exactly for
> this kind of thing. :)
Oh i tried to use the binary interface, but i haven't found a way to
increase the block size beyond 4k, could you please tell me how i could
adjust it, or where i could read about it?
Thank you very much!
Best regards,
Markus Lidel
------------------------------------------
Markus Lidel (Senior IT Consultant)
Shadow Connect GmbH
Carl-Reisch-Weg 12
D-86381 Krumbach
Germany
Phone: +49 82 82/99 51-0
Fax: +49 82 82/99 51-11
E-Mail: Markus.Lidel@shadowconnect.com
URL: http://www.shadowconnect.com
next prev parent reply other threads:[~2005-06-28 18:00 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-28 11:21 sysfs abuse in recent i2o changes Christoph Hellwig
2005-06-28 15:02 ` Markus Lidel
2005-06-28 16:21 ` Greg KH
2005-06-28 18:08 ` Markus Lidel [this message]
2005-06-28 18:07 ` Greg KH
2005-06-29 8:33 ` Markus Lidel
2005-07-08 6:00 ` Greg KH
2005-07-08 11:11 ` Markus Lidel
2005-07-31 14:09 ` Christoph Hellwig
2005-07-31 15:40 ` Markus Lidel
2005-07-31 21:19 ` Greg KH
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