From: Greg KH <greg@kroah.com>
To: Dave Jones <davej@codemonkey.org.uk>, Pavel Machek <pavel@ucw.cz>,
Jan Dittmer <j.dittmer@portrix.net>,
Mark Studebaker <mds@paradyne.com>,
azarah@gentoo.org, KML <linux-kernel@vger.kernel.org>,
Dominik Brodowski <linux@brodo.de>,
sensors@Stimpy.netroedge.com
Subject: Re: lm sensors sysfs file structure
Date: Wed, 2 Apr 2003 16:28:22 -0800 [thread overview]
Message-ID: <20030403002822.GB5130@kroah.com> (raw)
In-Reply-To: <20030401190240.GA6456@suse.de>
On Wed, Apr 02, 2003 at 12:27:47AM +0100, Dave Jones wrote:
> On Mon, Mar 31, 2003 at 10:44:39PM -0800, Greg KH wrote:
> > > Well, you had cV for PSU voltages and mV for cpu core voltage. I guess mV
> > > and mili-deg-C everywhere would be nicer.
> > As for why no floating point, it's a pain in the but to both output a
> > fixed point number from the kernel into floating point, and to parse a
> > floating point number from userspace within the kernel, turning it into
> > a fixed point number. With the proposal I wrote up, none of that is
> > needed, and all userspace has to do is divide by a factor of 10 to get
> > the proper value.
>
> FWIW, I'm taking the same fixed-point millivolt approach with the
> sysfs overrides for cpufreq. Having similar things in sysfs
> exporting the same units seems to be a good idea.
Hm, in looking around the kernel some more, it seems that there are a
number of other places that export voltage and temperature values (ACPI
being one of the most obvious.) It might be time to start thinking of a
single userspace library to access all of these kinds of values in a
system, instead of having to probe around different parts of the sysfs
tree by hand...
thanks,
greg k-h
next prev parent reply other threads:[~2003-04-03 0:16 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-25 8:53 i2c driver changes for 2.5.66; adding w83781d support Martin Schlemmer
2003-03-25 17:56 ` Greg KH
2003-03-26 19:04 ` w83781d i2c driver updated for 2.5.66 (without sysfs support) Martin Schlemmer
2003-03-26 19:40 ` Jan Dittmer
2003-03-26 19:54 ` Martin Schlemmer
2003-03-26 20:26 ` Greg KH
2003-03-26 20:43 ` Christoph Hellwig
2003-03-26 21:23 ` Greg KH
2003-03-26 22:26 ` Mark Studebaker
2003-03-26 22:52 ` lm sensors sysfs file structure Greg KH
2003-03-27 10:46 ` Jan Dittmer
2003-03-27 10:50 ` Martin Schlemmer
2003-03-27 12:27 ` Jan Dittmer
2003-03-27 12:33 ` Martin Schlemmer
2003-03-27 13:05 ` Jan Dittmer
2003-03-27 13:31 ` Jean Delvare
2003-03-27 17:16 ` Mark M. Hoffman
2003-03-27 17:25 ` Greg KH
2003-03-27 18:06 ` Jan Dittmer
2003-03-27 18:13 ` Greg KH
2003-03-30 19:23 ` Pavel Machek
2003-04-01 6:44 ` Greg KH
2003-04-01 20:22 ` Pavel Machek
2003-04-01 23:27 ` Dave Jones
2003-04-03 0:28 ` Greg KH [this message]
2003-04-03 10:49 ` Dave Jones
2003-04-03 18:43 ` Dominik Brodowski
2003-03-27 18:40 ` Jan Dittmer
2003-03-27 18:52 ` Greg KH
2003-03-27 18:17 ` Patrick Mochel
2003-03-27 18:57 ` Jan Dittmer
2003-03-27 19:15 ` Martin Schlemmer
2003-03-27 19:25 ` Greg KH
2003-03-27 19:42 ` Greg KH
2003-03-27 20:32 ` Jan Dittmer
2003-03-27 21:53 ` Greg KH
2003-03-27 22:23 ` Mark M. Hoffman
2003-03-28 6:05 ` Martin Schlemmer
2003-03-28 18:34 ` Pavel Machek
2003-03-26 20:29 ` w83781d i2c driver updated for 2.5.66 (without sysfs support) Greg KH
2003-03-26 23:34 ` Martin Schlemmer
2003-03-26 23:46 ` Greg KH
2003-03-30 12:47 ` [PATCH-2.5] w83781d i2c driver updated for 2.5.66-bk4 (with sysfs support, empty tree) Martin Schlemmer
2003-04-02 22:22 ` Greg KH
2003-03-27 23:00 lm sensors sysfs file structure Albert Cahalan
2003-03-27 23:10 ` Greg KH
2003-03-28 7:21 ` Martin Schlemmer
2003-03-28 7:40 ` Greg KH
2003-04-03 21:19 Grover, Andrew
2003-04-14 15:16 ` Patrick Mochel
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