Re: [lm-sensors] Another possible hwmon project

[Hans de Goede <hdegoede@redhat.com>]

Hi all,

On 06/24/2009 10:17 AM, Andre Prendel wrote:
> On Mon, Jun 22, 2009 at 12:03:13AM +0200, Hans de Goede wrote:
>>
>> On 06/21/2009 10:35 AM, Andre Prendel wrote:
>>> On Fri, Jun 19, 2009 at 09:15:39AM +0200, Hans de Goede wrote:
>>>> Hi,
>>> Hi Hans,
>>>
>>> First, sorry for bad response times. I'm very busy with private stuff
>>> at the moment. I'll change the company I'm working for. This is
>>> related with moving back to my hometown (Dresden).
>>>
>> Ok, np.
>>
>>>> <snip>
>>>>
>>>>> Thanks for all the material. I read some stuff about DMI and SMBIOS
>>>>> yesterday. Further I checked out the dmidecode source code. I will
>>>>> go on with investigation by reading the mailing list discussions etc.
>>>>>
>>>> I don't think you need to dig that deep wrt DMI,
>>> I want to know how things work at low level. This makes things easier
>>> to understand for me.
>>>
>>>> what we will most likely
>>>> and up doing is looking for the strings found inside
>>>> /sys/devices/virtual/dmi/id/board_name
>>>> /sys/devices/virtual/dmi/id/board_vendor
>>> I can't see these files in sysfs. What driver is responsible for creation?
>>>
>> Hmm, strange, I dunno on all my systems they just exists. Weird, maybe you
>> are running a somewhat old kernel ?
>
> Ok, I've found the files on my system under /sys/class/dmi/id/. Driver
> /drivers/firmware/dmi-id.c creates the files. The driver was
> introduced in 2007.
>

Hmm, ok, I have them there too (/sys/class/dmi/id is a symlink to
/sys/devices/virtual/dmi/id on my system), so if /sys/class/dmi/id
works on more systems / kernel configs lets use that.

> Jean, could you bring some light into the darkness? I've seen you did
> some work on the DMI stuff.
>
> I'm using the most recent mainline kernel form git. Hans, what version
> do you use?
>

I'm using a stock Fedora 11 kernel, I think this might be related to
the various sysfs compatibility kernel configuration options.

> BTW, Jean. Hans asked me for working on the automatic configuration of
> sensors using DMI information.
>

Ack, its still something which I would like to see done, so I suggested the
idea to Andre.

Andre, as said before I think once you're done orienting yourself, the first
thing to do is write a proposal how this all will work and send it to the
list.

Regards,

Hans

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