National PC87372 chip driver wanted

Jean Delvare khali at
Thu May 20 09:42:45 CEST 2004

> I haven't had much time to work on sensors stuff lately, but your
> offer is interesting... not least because I recognize your company
> from a couple messages to the Philly LUG and because I live relatively
> close to Exton myself.
> I took a quick look at the PC87372 datasheet - that combined with Jean
> Delvare's recent work on similar NatSemi chips should make for a
> pretty straightforward driver.

Agreed. Left apart the fact that the PC87370 family chips uses 16-bit
values for fan speed measurement, which is something new (and a good
thing IMHO since it solves clock divider issues), they look rather
similar to the PC87360 family (up to 364).

There is another chip in this family: the PC87373. Looks like an
improved 372, and compatible. It has one more fan monitoring channel (3
instead of 2) and 3 PWM outputs, which means that it is functionally
equivalent to the PC87364 (as far as fan speed control and monitoring is
concerned). We would probably want to have a single driver for the
PC7370 family, much like we did for the PC87360 family.

I just added support for the PC87373 to sensors-detect, and have been
updating our "New Drivers" page as well.

One important point would be to know for which kernel Mitchell is
interested in a driver. We will probably end up in having a driver for
both the 2.4 and the 2.6 kernel, but we will have to start with either.
For information, my PC87360 family driver is for 2.4 only at the moment.

Jean Delvare

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