On 02/12/2014 04:05 AM, Jean Delvare wrote:
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.
Yes, that would explanin the problem.
As usual, my recommendation is to either use IPMI or native drivers but
not mix.
Agreed.
Guenter
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.
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