From: Greg KH <greg@kroah.com>
To: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Markus Franke <markus.franke@s2002.tu-chemnitz.de>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] w1: Add 1-wire slave device driver for DS28E04-100
Date: Wed, 9 May 2012 20:43:48 -0700 [thread overview]
Message-ID: <20120510034348.GB18484@kroah.com> (raw)
In-Reply-To: <20120510004350.GA8362@ioremap.net>
On Thu, May 10, 2012 at 04:43:50AM +0400, Evgeniy Polyakov wrote:
> On Wed, May 09, 2012 at 05:01:26PM -0700, Greg KH (greg@kroah.com) wrote:
> > Binary sysfs files should be "pass through" only, the kernel should not
> > touch the data involved in them at all, it is a pipe directly from the
> > kernel to userspace for binary blob data, like firmware images. You
> > should never do any processing of any binary file data at all in the
> > kernel.
>
> And if some of the data should be somehow changed, what interfact should
> be used? Also, Markus, does DS28E04 change written/read data when doing
> IO?
>
> I must admit, I never heared that binary sysfs files have to follow this
> constraint.
For some reason I thought I had documented it years ago, but in digging
through the Documentation directory, I don't see it anywhere, sorry
about that.
I'll add it to my ever-growing TODO list...
thanks,
greg k-h
next prev parent reply other threads:[~2012-05-10 3:43 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-30 2:13 [PATCH] w1: Add 1-wire slave device driver for DS28E04-100 Greg KH
2012-05-02 20:12 ` Markus Franke
2012-05-02 20:21 ` Greg KH
2012-05-03 18:00 ` Evgeniy Polyakov
2012-05-09 20:37 ` Markus Franke
2012-05-09 22:06 ` Greg KH
2012-05-09 22:16 ` Markus Franke
2012-05-09 22:24 ` Greg KH
2012-05-09 22:37 ` Markus Franke
2012-05-09 23:57 ` Evgeniy Polyakov
2012-05-10 0:01 ` Greg KH
2012-05-10 0:43 ` Evgeniy Polyakov
2012-05-10 3:43 ` Greg KH [this message]
2012-05-10 4:55 ` Markus Franke
2012-05-10 15:16 ` Greg KH
2012-05-10 22:57 ` Markus Franke
2012-05-10 23:04 ` Greg KH
2012-05-11 6:13 ` Markus Franke
2012-05-15 1:21 ` Evgeniy Polyakov
2012-05-25 22:45 ` Markus Franke
2012-05-10 23:22 ` Andrew Morton
2012-05-11 6:15 ` Markus Franke
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120510034348.GB18484@kroah.com \
--to=greg@kroah.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=markus.franke@s2002.tu-chemnitz.de \
--cc=zbr@ioremap.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox