Problem reading vitals from Gigabyte H77-DH3H

[Scot Hetzel]

On Sat, Oct 20, 2012 at 3:09 PM, Andriy Gapon <avg at freebsd.org> wrote:
> on 20/10/2012 22:42 Andriy Gapon said the following:
>> on 20/10/2012 22:20 Derek Kulinski said the following:
>>> I have three questions though:
>>> 1. The motherboard has 4 fan sockets (as far as I can tell), CPU_FAN,
>>>    and SYS_FAN[1-3]. SYS_FAN1 currently is not connected.
>>>    Seems like:
>>>      fan0 -> CPU_FAN (did not try to disconnect it to check :)
>>>      fan1 -> SYS_FAN1
>>>      fan2 -> SYS_FAN2
>>>    There is no entry for SYS_FAN3. I disconnected it temporarily but
>>>    it did not seem to affect the output. Is it possible to get that
>>>    information from the motherboard?
>>
>> The driver would have to be updated for that.
>> Unfortunately ITE does not provide public datasheets.
>> We could pick up some new bits from the Linux driver though.
>> http://lxr.linux.no/#linux+v3.6.2/drivers/hwmon/it87.c
>
> In fact, here is a completely untested patch:
> http://people.freebsd.org/~avg/it-fans-0x80.diff
>

@@ -354,12 +372,15 @@ static void
 it_refresh_sensor_data(struct it_softc *sc)
 {
 	/* Refresh our stored data for every sensor */
-	it_generic_stemp(sc, &sc->sensors[12]);
-	it_generic_svolt(sc, &sc->sensors[3]);
-	if (sc->fan16bit)
+	if (sc->fan16bit) {
 		it_16bit_fanrpm(sc, &sc->sensors[0]);
-	else
+		it_generic_svolt(sc, &sc->sensors[5]);
+		it_generic_svolt(sc, &sc->sensors[14]);  <- Looks to be a copy/paste bug ;-)
+	} else {
 		it_generic_fanrpm(sc, &sc->sensors[0]);
+		it_generic_svolt(sc, &sc->sensors[3]);
+		it_generic_stemp(sc, &sc->sensors[12]);
+	}
 }