Re: Driver for PC87372

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On Fri, Jun 06, 2014 at 09:23:26AM +0200, Jean Delvare wrote:
> Hi Guenter, Michael,
> 
> On Thu, 5 Jun 2014 19:18:43 -0700, Guenter Roeck wrote:
> > On Mon, Jun 02, 2014 at 02:17:43PM -0600, Michael P Dixon wrote:
> > > I am interested in obtaining a driver for the PC87372 chip. sensors-detect
> > > lists it as 'to be written'. I understand that since it is such an old chip
> > > that it could be very low priority, if it has a priority at all. What kind
> > > of an effort would it take to produce this driver? The devices page says: *A
> > > driver has been requested, will be developed upon donation of a board. *What
> > > are the specifics of this? What kind of board? Any feedback is appreciated.
> >
> > presumably that was supposed to mean a board with the chip on it.
> 
> Correct. Any donation is welcome, but giving a board with the right
> chip additionally allows for driver testing.
> 
> > Even with a board, I for my part would not have time for writing a driver.
> > Given the age of the chip, my expectations for finding someone to write
> > a driver would be quite low. Any chance doing it yourself ?
> 
> Well, before anyone spends time writing a driver, Michael should ensure
> that such a driver is really needed. All previous investigations of
> PC87372 user cases came to the conclusion that this chip was not used
> for monitoring, and instead a dedicated monitoring chip was connected
> to the SMBus.
> 
If I remember correctly, the chip only supports fan control, not any voltage
or temperature monitoring, so that separate chip would be needed anyway.

Guenter

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