On Sat, Feb 12, 2011 at 10:48 AM, Guenter Roeck <guenter.roeck@xxxxxxxxxxxx> wrote: > On Sat, Feb 12, 2011 at 08:53:51AM -0500, Andrew Lutomirski wrote: > [ ...] > 16 bit mode is always active. > > Register 0x29 and 0x632/0x0633 are in sync, though. What is odd is that > the value is 0x0 in both registers when it should be 0xff or above. > This is a problem, because if it returns 0x0 in register 0x29 if the divisor > value is too low, we can not detect that it is too low, and the code > to automatically increase the divisor does not work. > > Can you check what you get for other fan_min values, specifically for 200 ? > Also, can you check the return values of registers 0x656..0x65d ? > That should be the direct RPM values. Maybe we have to use the RPM registers > for the new chips instead of using the fan count. fan2_min == 200 (div = 64): fan2_input == 138 (read at a different time, so may differ a little) [56013.556233] Reg 0028 = 46 [56013.556243] Reg 0029 = 99 [56013.556252] Reg 002a = 00 [56013.556261] Reg 003f = 00 [56013.556286] Reg 0630 = 0046 [56013.556302] Reg 0631 = 4600 [56013.556319] Reg 0632 = 0099 [56013.556336] Reg 0633 = 9900 [56013.556352] Reg 0634 = 0000 [56013.556369] Reg 0635 = 0000 [56013.556386] Reg 0636 = 0000 [56013.556403] Reg 0637 = 0000 [56013.556419] Reg 0656 = 025a [56013.556436] Reg 0657 = 5a00 [56013.556453] Reg 0658 = 0089 [56013.556469] Reg 0659 = 8900 [56013.556486] Reg 065a = 0000 [56013.556502] Reg 065b = 0000 [56013.556519] Reg 065c = 0000 [56013.556536] Reg 065d = 0000 fan2_min == 502 (div = 32): fan2_input == 0 (read at a different time, so may differ a little) [56085.471272] w83627ehf: Found NCT6775F chip at 0x290 [56085.471557] Reg 0028 = 45 [56085.471567] Reg 0029 = 00 [56085.471575] Reg 002a = 00 [56085.471584] Reg 003f = 00 [56085.471610] Reg 0630 = 0045 [56085.471627] Reg 0631 = 4500 [56085.471644] Reg 0632 = 0000 [56085.471661] Reg 0633 = 0000 [56085.471677] Reg 0634 = 0000 [56085.471694] Reg 0635 = 0000 [56085.471711] Reg 0636 = 0000 [56085.471728] Reg 0637 = 0000 [56085.471751] Reg 0656 = 0263 [56085.471780] Reg 0657 = 6300 [56085.471804] Reg 0658 = 0000 [56085.471829] Reg 0659 = 0000 [56085.471846] Reg 065a = 0000 [56085.471864] Reg 065b = 0000 [56085.471881] Reg 065c = 0000 [56085.471898] Reg 065d = 0000 I assume it's 0x658 that should hold the RPM value. If you haven't solved it remotely by Monday, I'll email Nuvoton and ask for that datasheet... --Andy > > Thanks, > Guenter > _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
