Rudolf Marek wrote:
> Hello,
>
> I remember I did some patch for 2.6 kernel for this.
>
> Maybe it is missing for 2.4?
>
I'm building 2.10.0 for the 2.4 kernel from source. For 2.6 kernel I'm
using the Suse supplied build (opensuse 10.1 distro).
> Anyway please supply output of following:
>
> modprobe i2c-dev
> i2cdetect 0
> i2cdump 0 0x2f
>
>
Here's the output:
ImageServer#/tmp: ./i2cdetect 0
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-0.
I will probe address range 0x03-0x77.
Continue? [Y/n]
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: XX XX XX XX XX 08 XX XX XX 0c XX XX XX
10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX
20: XX XX XX XX XX XX XX XX XX XX XX XX XX 2d XX 2f
30: 30 XX 32 XX XX XX XX XX XX XX XX XX XX XX XX XX
40: XX XX XX XX 44 XX XX XX 48 49 XX XX XX XX XX XX
50: UU XX UU XX XX XX XX XX XX XX XX XX XX XX XX XX
60: 60 61 62 63 64 XX XX XX XX 69 XX XX XX XX XX XX
70: XX XX XX XX XX XX XX XX
ImageServer#/tmp: ./i2cdump 0 0x2f
No size specified (using byte-data access)
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-0, address 0x2f, mode byte
Continue? [Y/n]
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ??..............
10: 00 00 64 64 b2 00 00 38 00 ff 00 00 05 00 e0 b3 ..dd?..8....?.??
20: ab c0 cd bd 1f c4 d1 22 18 ff 19 d2 82 ce a9 e2 ???????"?.??????
30: b9 ce a8 2f 13 d9 b1 cc a7 32 00 ed ed ed 39 bf ???/?????2.???9?
40: 03 00 20 57 7f ff ff 33 2f 13 88 c0 45 ff 80 5c ?. W?..3/???E.?\
50: ff ff ff ff ff ff ff ff 7a 20 ff 33 33 01 05 7f ........z .33???
60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
80: 01 8f ff 8f 00 00 00 50 11 ff ff ff 3c 00 0a 0a ??.?...P?...<.??
90: 00 00 00 01 8f ff 00 00 11 ff 3c 00 bf 01 01 ff ...??...?.<.???.
a0: 01 01 01 8f 8f 8f 8f ff 37 40 30 a0 ff ff 00 00 ???????.7 at 0?....
b0: cb cb ff ff cc a7 e2 b9 ff 1e ff ed ed ed 41 ff ??..????.?.???A.
c0: 2c 80 00 4b 00 50 00 ff 1e 80 00 4b 00 50 00 ff ,?.K.P..??.K.P..
d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................
e0: 8b ff 8b 28 3c 50 28 3c 50 28 3c 50 ff ff ff ff ?.?(<P(<P(<P....
f0: ff ff 80 ff 00 05 00 7f ff 02 ff 00 00 00 00 ff ..?..?.?.?......
ImageServer#/tmp: lsmod
Module Size Used by Tainted: P
w83627hf 14104 0 (unused)
w83792d 11988 0 (unused)
w83781d 19196 0 (unused)
i2c-isa 804 0 (unused)
i2c-i801 4828 0
eeprom 3500 0 (unused)
i2c-proc 5988 0 [w83627hf w83792d w83781d eeprom]
i2c-dev 3776 0
i2c-core 14276 0 [w83627hf w83792d w83781d i2c-isa
i2c-i801 eeprom i2c-proc i2c-dev]
vrdvx 51460 4
vrdsp 1234848 2
vrsfd 74096 14 [vrdvx vrdsp]
vrmem 9760 2
e1000 98896 1
ImageServer#/tmp:
> This means that there was some misprogramming done by BIOS which put two other
> sublients to same addr. The subclients are legacy LM75 like chips emulated by
> w83792d.
>
>
But why would 2.6 distro work and 2.4 not work for w83792d-i2c-0-2f if
it was a BIOS problem?
> Please let me know if
> modprobe w83792d force_subclients=0,0x2f,0x4a,0x4b
>
>
Nope, still didn't get w83792d-i2c-0-2f to appear. Thanks for the help!
