On Thu, 2010-07-29 at 23:46 -0400, Andy Walls wrote: > On Thu, 2010-07-29 at 22:39 -0400, Jon Smirl wrote: > > On Thu, Jul 29, 2010 at 10:17 PM, Maxim Levitsky > > <maximlevit...@gmail.com> wrote: > > > note that error_adjustment module option is added. > > > This allows to reduce input samples by a percent. > > > This makes input on my system more correct. > > > > > > Default is 4% as it works best here. > > > > > > Note that only normal input is adjusted. I don't know > > > what adjustments to apply to fan tachometer input. > > > Maybe it is accurate already. > > > > Do you have the manual for the ENE chip in English? or do you read Chinese? > > The datasheet for a similar chip, the KB3700, is out there in English, > but it doesn't have CIR. > > You might find these links mildly interesting: > > http://www.coreboot.org/Embedded_controller > http://wiki.laptop.org/go/Embedded_controller > http://lists.laptop.org/pipermail/openec/2008-July/000108.html
Nope, I have read that. > > Regards, > Andy > > > Maybe you can figure out why the readings are off by 4%. I suspect > > that someone has set a clock divider wrong when programming the chip. > > For example setting the divider for a 25Mhz clock when the clock is > > actually 26Mhz would cause the error you are seeing. Or they just made > > a mistake in computing the divisor. It is probably a bug in the BIOS > > of your laptop. If that's the case you could add a quirk in the > > system boot code to fix the register setting. I figured out how windows driver compensates for the offset, and do the same in my driver. I think the problem is solved. Best regards, Maxim Levitsky -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
