Re: [lm-sensors] lm-sensors 3.1.1-3 not detecting sensors on Intel DP55KG motherboard? (chip ID: 0xb473)

Jean Delvare
2009-10-16T18:41:56Z

On Fri, 16 Oct 2009 09:40:51 -0400 (EDT), Justin Piszcz wrote:
> On Fri, 16 Oct 2009, Jean Delvare wrote:
> > If you want me to investigate this, you can provide an I2C dump of the
> > chip. Get i2cdump from the i2c-tools package, and then:
> >
> > # i2cdump 0 0x2c b
> >
> > This might confuse the chip in question though, so only try it if you
> > are ready to trigger a cold reboot.
>
> Ok, luckily it does not appear to have caused any issues:
>
> # i2cdump 0 0x2c b
> WARNING! This program can confuse your I2C bus, cause data loss and worse!
> I will probe file /dev/i2c-0, address 0x2c, mode byte
> Continue? [Y/n] y
> 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 80 80 80 04 7e 10 ..........????~?
> 20: 75 51 c0 c3 c3 80 28 2d bd 0f de 0f 3b 1d a9 16 uQ????(-????;???
> 30: 33 4d 4d c2 81 00 c2 00 ff ff ff e6 7b fb 41 6f 3MM??.?....?{?Ao
> 40: 35 90 40 00 00 ff 00 ff 00 ff 00 ff 00 ff 81 7f 5?@...........??
> 50: 81 7f 81 7f ff ff ff ff ff ff ff ff 0a a2 a2 ca ????........????
> 60: 8a 8a e0 aa 33 4c 4c 5a 2d 2d 64 41 41 04 42 00 ????3LLZ--dAA?B.
> 70: 00 00 00 00 00 00 6c 60 f0 00 00 55 01 00 00 00 ......l`?..U?...
> 80: 00 00 00 00 00 00 ff ff 00 00 fb 64 64 64 00 00 ..........?ddd..
> 90: 00 59 59 59 00 00 00 00 00 00 00 00 00 00 00 00 .YYY............
> a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> b0: 00 00 00 00 00 00 00 00 00 00 00 00 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 ................
> #

Smells like an Analog Devices chip, but not one we know... And I can't
see it on the web site you mentioned. Please search for a small-size
chip named ADTxxxx (more likely ADT74xx).

--
Jean Delvare