Hi Hans,
> Ran on Jean's advice sensors-detect again and it reported when probing for
> superior the following:
>
> Probing for Super-I/O at 0x4e/0x4f
> Trying family `ITE'... No
> Trying family `National Semiconductor'... No
> Trying family `SMSC'... No
> Trying family `VIA/Winbond/Fintek'... Yes
> Found unknown chip with ID 0x0541
Great, it partly worked. It properly detected the address (0x4e/0x4f)
and the family. Contrary to my expectations, it failed to find the
logical device number though, I wonder why.
> Then did an isadump on 0x4e 0x4f and was shown a lot more 0xff :(
> I looked at the driver code for the Fintek F71805F Super-I/O chip which uses
> 0x87 to as key to unlock.
Actually the key for this family is double 0x87. You are lucky that it
worked with only one (below), in most cases it won't.
> Results for isadump -k 0x87 0x4e 0x4f
> 0 1 2 3 4 5 6 7 8 9 a b c d e f
> 00: ff ff 00 ff ff ff ff 05 ff ff ff ff ff ff ff ff
> 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 20: 05 41 10 19 34 00 00 7e 70 ff 44 a0 07 0a 00 00
^^^^^
This confirms my earlier guess that this chip was designed by Fintek,
despite the Epox top marking.
> 30: 01 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 60: 00 60 ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 70: 01 ff 0c ff ff ff ff ff ff ff ff ff ff ff ff ff
> 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
Now I'd like to understand why sensors-detect didn't find the logical
device number. Please run the following command and provide the output
(assuming you use bash as your shell, and as root):
for ldn in `seq 0 15` ; do echo "==/ LDN=$ldn /==" ; isadump -y -k 0x87,0x87 0x4e 0x4f $ldn ; done
This will dump the first 16 logical devices (there are rarely more.) We
are looking for a logical device with 0x295 at 0x60. sensors-detect
would have detected that so I expect some trick though.
--
Jean Delvare
