On Thu, Nov 7, 2013 at 4:35 PM, Rudolf Marek <r.marek@xxxxxxxxxxxx> wrote: > >> > P.S. I have reason to believe that the it87 device we are talking about is >> actually an emulation running on an 8051 co-processor, specifically the EC >> (Embedded Controller) in the AMD A85 Hudson chipset. The it87 emulation is >> poorly written in the 8051 code and can result in unexpected effects -- >> bugs. >> I have specifically seen the sensor stop updating (as if it just stopped >> sampling values). >> > > No, the chip is real, just look to the corner near audio connectors ;) The > chip is derivate of IT8728 it seems. It has lower pin count and lower > number of features. There are just two input temperatures and 3 fan > inputs/pwms. Voltages are all there. It looks like the voltages have fixed > functions for inputs because they are also used in the voltage under/over > voltage protections. > > I'm tempted to treat this chip as IT8728F. Does anyone have a datasheet of > IT8728F? > That is a good idea. The current driver causes the chip to stop updating temperatures, though fan control continues to work. That probably means a different/additional exit sequence is needed -- or perhaps writing to the chip is entirely wrong. I'll look for an 8728 datasheet. David _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
