Re: [lm-sensors] Cannot compile w83627ehf standalone driver

[Phil Perry <phil@elrepo.org>]

On 12/09/13 09:56, singumal wrote:
> Phil Perry <phil@elrepo.org> wrote:
>
>> On 11/09/13 16:22, Guenter Roeck wrote:
>>> On Wed, Sep 11, 2013 at 03:23:30PM +0100, Phil Perry wrote:
>>>> On 11/09/13 06:44, singumal wrote:
>>>>> Phil Perry <phil@elrepo.org> wrote:
>>>>>
>>>>>> On 06/09/13 21:22, Jean Delvare wrote:
>>>>>>> On Fri, 06 Sep 2013 08:37:43 -0700, singumal wrote:
>>>>>>>> I have an ASRock IMB-170 Mini-ITX board; 3.3.4's sensors-detect shows:
>>>>>>>>
>>>>>>>>      Found `Winbond W83627UHG/NCT6627UD Super IO Sensors'        Success!
>>>>>>>>          (address 0x290, driver `w83627ehf')
>>>>>>>>
>>>>>>>> I'm on an older kernel, and I can't seem to compile the driver
>>>>>>>> from:
>>>>>>>>
>>>>>>>>       http://khali.linux-fr.org/devel/lm-sensors/drivers/w83627ehf/
>>>>>>>>
>>>>>>>>
>>>>>>>> [root@plain1 driver]# uname -a
>>>>>>>> Linux plain1 2.6.18-274.el5 #1 SMP Fri Jul 22 04:43:29 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux
>>>>>>>> [root@plain1 driver]# make
>>>>>>>>      CC [M]  /root/driver/w83627ehf.o
>>>>>>>> /root/driver/w83627ehf.c: In function `in_from_reg':
>>>>>>>> /root/driver/w83627ehf.c:416: error: implicit declaration of function `DIV_ROUND_CLOSEST'
>>>>>>>> ... [many more errors and warnings]
>>>>>>>
>>>>>>> This driver was never tested for kernels older than 2.6.32. More
>>>>>>> compatibility work would be needed to get it to build and work on
>>>>>>> kernel 2.6.18.
>>>>>>>
>>>>>>> I'm wondering if maybe Redhat can provide a backported version as a
>>>>>>> separate package? You're probably not the only one asking for this, as
>>>>>>> this is a popular driver.
>>>>>>>
>>>>>>
>>>>>> I've already done a backport of the w83627ehf for RHEL5 and RHEL6, and
>>>>>> it is packaged as a kABI-tracking kmod RPM package (kmod-w83627ehf) in
>>>>>> the elrepo repository.
>>>>>>
>>>>>> http://elrepo.org/tiki/kmod-w83627ehf
>>>>>>
>>>>>> This driver is backported from the longterm kernel-3.2.50.
>>>>>>
>>>>>> Once you have set up the elrepo repository:
>>>>>>
>>>>>> yum install kmod-w83627ehf
>>>>>>
>>>>>> will pull in the updated driver.
>>>>>>
>>>>>> Further, because it's a kABI-tracking package the driver will seamlessly
>>>>>> work with new kernels so you will not need to recompile the driver
>>>>>> against each new kernel update (an advantage of Red Hat's stable kernel
>>>>>> ABI).
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Phil
>>>>>>
>>>>>
>>>>> Thank you very much, Phil.
>>>>>
>>>>> Unfortunately, it doesn't seem to quite like my system,
>>>>>
>>>>> The RPM installed fine, but "sensors" only shows coretemp, not the chip.
>>>>> Finally I checked the module - something isn't right:
>>>>>
>>>>> [root@tm3 etc]# modprobe w83627ehf
>>>>> FATAL: Error inserting w83627ehf (/lib/modules/2.6.18-274.el5/weak-updates/w83627ehf/w83627ehf.ko): No such device
>>>>>
>>>>>
>>>>
>>>> Hi,
>>>>
>>>> I'm not sure what the problem is. One thing I note is that you are
>>>> running an older RHEL 5.7 kernel. Would it be possible to try
>>>> booting the latest/current RHEL kernel to at least eliminate that as
>>>> the possible cause (i.e, a RHEL 5.9 kernel;
>>>> kernel-2.6.18-348.16.1.el5 is the latest).
>>>>
>>> Maybe the chip in question is not supported by the backported version
>>> of the driver.
>>>
>>> Guenter
>>>
>>
>> Hi Guenter,
>>
>> It should be (unless maybe it's being mis-detected by sensors-detect?).
>> The backport is from kernel-3.2.48 LT branch which contains the patch to
>> add support for the W83627UHG chip, as reported by sensors-detect above.
>>
>> Phil
>
> Trying it under CentOS 5.9, it still doesn't work:
>
> [root@x59 ~]# cp /media/MULTIBOOT/Work/kmod-w83627ehf-0.0-8.el5.elrepo.x86_64.rpm .
> [root@x59 ~]# rpm -Uvh kmod-w83627ehf-0.0-8.el5.elrepo.x86_64.rpm
> warning: kmod-w83627ehf-0.0-8.el5.elrepo.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID baadae52
> Preparing...                ########################################### [100%]
>     1:kmod-w83627ehf         ########################################### [100%]
> Working. This may take some time ...
> Done.
> [root@x59 ~]# modprobe w83627ehf
> FATAL: Error inserting w83627ehf (/lib/modules/2.6.18-348.el5/weak-updates/w83627ehf/w83627ehf.ko): No such device
> [root@x59 ~]# uname -a
> Linux x59 2.6.18-348.el5 #1 SMP Tue Jan 8 17:53:53 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
>
>


I see the problem (I think), and it's partially my fault.

Support for the W83627UHG chip was only backported into version 
0.0-9.el5 of the kmod-w83627ehf driver (you have version 0.0-8.el5 
installed above), and I put that into the extras repository by mistake 
instead of the main repo.

I'm assuming you are seeing the above FATAL Error as that version of the 
driver does not support your device, hence "No such device".

Please update to the latest 0.0-9.el5 version with:

yum --enablerepo=elrepo-extras update kmod-w83627ehf

or below is a direct link to version 0.0-9.el5 of the package but I'll 
move it to it's correct repository shortly so the link will most likely 
break:

http://elrepo.org/linux/extras/el5/x86_64/RPMS/kmod-w83627ehf-0.0-9.el5.elrepo.x86_64.rpm

My apologies for the inconvenience.

Phil


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