Hi Jean, Jean Delvare wrote: > Hi Wolfgang, > > On Mon, 16 Feb 2009 11:11:34 +0100, Wolfgang Grandegger wrote: >> Hello, >> >> I have just realized that there have already been an attempt to get >> 12-bit support into the LM75 driver: >> >> http://marc.info/?t=120836918500008&r=1&w=4 > > Yes, I remember David (Cc'd) had been working on it. > >> But it's not obvious too me why it was finally abandoned. In the GIT log >> I just find: >> >> - More careful initialization. Chips are put into 9-bit mode so >> the current interconversion routines will never fail. >> >> What have I missed? > > I can't remember exactly either, I suspect there was some remaining > polishing that never happened and the patch was lost because of this. > This is also the time when we lost our hwmon subsystem maintainer, > which probably didn't help keep track of floating patches. But there is > no problem with adding 12-bit resolution support to the lm75 driver for > chips which have this feature, if you are interested and willing to > work on it. OK, I see. A customer was asking for 12-bit support, but I doubt that there is any benefit because the accuracy of the mounted DS75 is just +-2 degree. And most LM75 compatible devices are not more accurate, I think. If he decides to calibrate the dtt, e.g., I might get an opportunity to add to 12-bit support. Thanks, Wolfgang.
