On Wed, 12 Feb 2014 03:54:44 -0800, Guenter Roeck wrote: > On 02/12/2014 03:07 AM, Jürgen Fuchsberger wrote: > > i2cdump.txt > > > > > > 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef > > 00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > 20: 36 00 c0 3a c4 80 27 80 ff ff ff ff ff ff ff ff 6.?:??'?........ > > 30: ff ff ff 00 00 00 00 00 00 00 00 00 00 00 5c 8a ..............\? > > 40: 0f db c0 20 ad d3 00 ff ad d3 ad d3 ad d3 81 7f ??? ??..???????? > > 50: 81 7f 81 7f ff ff ff ff ff ff ff ff 62 62 62 cb ????........bbb? > > 60: cb cb e0 00 80 80 80 80 80 80 64 64 64 44 40 00 ???.??????dddD@. > > 70: ff ff ff 09 09 09 09 09 09 00 00 00 40 00 ec 10 ...??????...@.?? > > 80: 7e a4 0e 00 d3 00 87 74 e0 00 4d 4d 0b 0b 0d 00 ~??.?.?t?.MM???. > > 90: 04 04 04 04 0c 0c 0c 5a f1 c0 af ad d3 9d c0 00 ???????Z???????. > > a0: 00 00 0c 00 02 ff ff 0b 0b fe ff fe ff ff ff ff ..?.?..???.?.... > > b0: ff 00 00 00 00 00 28 28 0e 0e 0f 0f 00 00 00 00 ......((????.... > > c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > > That looks normal for the chip as far as I can see, and there are > no errors. The board supports IPMI. I would guess that the errors happen when the native driver and IPMI attempt to access the SMBus at the same time. As usual, my recommendation is to either use IPMI or native drivers but not mix. > Wonder if the chip may have timing restrictions and not respond > to queries under some circumstances (eg if registers are read > too quickly back-to-back). Unfortunately I don't seem to be able > to find a datasheet for it. Does anyone have one, by any chance ? I do have it, and Juerg does as well, but at least I am not allowed to share it. I'll be happy to answer any question though. -- Jean Delvare Suse L3 Support _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
