Hi Jean, > Hi Juergen, > > > it seems that the ADT7475 is compatible with an ADT7463, so i have tried > > to use the lm85 driver. (The ADT7475 is missing the Vid Inputs.) > > How did you figure out? I guess you mean the "vin inputs"? VID inputs > are something different. Oh well, they are also missing, anyway. > I have found that the lm85 driver is usable for the ADT7463, then i thought there could be a possibility that the ADT7475 is compatible with the ADT7463 in some way. After that i have compared nearly every page of the two datasheets.... If you take a look at the functional diagram of the ADT7463 http://www.analog.com/images/Product_Descriptions/408124366940429ADT7463_S.jpg you can see in the upper left corner 7 "VID" Inputs which are not available at the ADT7475. > Replace ":" with "=", and it should work better, except that according > to the output below, the proper address is 1,0x2e rather than 0,0x2e. > OK... > Do the fan speeds reported here match the ones displayed by your BIOS? > Can you try setting limits and checking whether alarms trigger as they > should? > Yes they do.. i think good enough ;-) Bios Sensors CHA_FAN2 1427 1420 (fan2) CHA_FAN3 1908 1889 (fan3) CHA_FAN4 1978 2019 (CPU_FAN) > The temp2 value is rather frightening... It is supposed to be the > chip's own temperature. It looks like the chip supports different modes, > include an "ADT7463 compatibility mode", and I guess your chip is not > in this mode, thus the weird reading. The external temperatures are > obviously not wired. > > Now the question is, do we want to add support for the ADT7475 chip to > the lm85 driver? That's a recurring question, each time several chips > are compatible but still somewhat different. > > In this case, the lm85 driver already supports 6 different chips > (although there was no reason to differenciate between the B and C > revisions as far as I can see) and we must beware of not increasing the > complexity of our drivers beyond reason. I'm not too sure what to do. > Maybe we can try adding support to the lm85 driver, and if it turns up > adding too much complexity, do a separate driver. > Yes i think, this would be the right way. > One element which may help us decide is whether the ADT7475 itself is > compatible with other chips. If it is, making a new driver for the > ADT7475 and the compatible chips would make sense. Can you make some > research? Yes i can do some research... but i've not much spare time at the moment and i am on vacation for 3 weeks starting next friday. == Juergen
