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On 09/20/2016 02:59 PM, Guenter Roeck wrote:
> On Tue, Sep 20, 2016 at 02:41:56PM -0500, Timothy Pearson wrote:
>> On 09/19/2016 07:54 PM, Guenter Roeck wrote:
>>>> On 09/19/2016 03:04 PM, Guenter Roeck wrote:
>>>> And then you are using all pmbus commands ? Seems odd.
>>> I guess I'l buy an evaluation board if one is available and check if your
>>> is correct. I am not inclined to accept a non-pmbus driver for a pmbus
>>> device without good reason.
>> Regarding the PMBus driver, I looked over the documentation available
>> here: https://www.kernel.org/doc/Documentation/hwmon/pmbus
>> From what I can tell PMBus drivers do not support configuring the fan
>> control parameters, only monitoring the fan status and speed. Is this
>> correct, and if not where would I find the correct documentation?
> So far that wasn't needed. That doesn't mean it can not be added.
> I orderd an evaluation board and will likely spend some time on it myself
> after I get it.
OK, sounds good. I looked back in the notes for this project and we had
originally considered using a PMBus driver but ran into the kernel
documentation, noted the missing control features, and I subsequently
misinterpreted the datasheet using the kernel docs as a reference. This
is why the hwmon driver was implemented.
Please let me know if I can be of any assistance.
+1 (415) 727-8645 (direct line)
+1 (512) 690-0200 (switchboard)
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