Rudolf,
Thank you for your feedback.
<clip>
> > + /* Detection: not sure how to do that...
> > + * possibility: toggle the value read from invert0 and see if
input0
> > + * changes polarity.
> > + */
>
> I can try to help you with this a bit.
> Please can you use i2cdump to dump chip registers?
<clip>
Here's the i2cdump output.
The device only supports 8 registers (0-7), so the output isn't too
surprising.
AFAIK, this device isn't likely to be on any common motherboard.
Perhaps detection isn't necessary?
Thanks,
Ben
~ # i2cdump
Error: No i2c-bus specified!
Syntax: i2cdump [-y] I2CBUS ADDRESS [MODE] [BANK [BANKREG]]
i2cdump -V
MODE is 'b[yte]', 'w[ord]', 's[mbusblock], 'i[2cblock]',
or 'c[onsecutive byte address mode]' (default b)
Append MODE with 'p' for PEC checking
I2CBUS is an integer
ADDRESS is an integer 0x00 - 0x7f
BANK and BANKREG are for byte and word accesses (default bank 0, reg
0x4e)
BANK is the command for smbusblock accesses (default 0)
Installed I2C busses:
i2c-0 unknown CS5535 SMB0
Algorithm unavailable
~ # ls /sys/devices/platform/i2c-0/0-0074/
bus config1 driver input1 invert1
output0
config0 detach_state input0 invert0 name
output1
~ # i2cdump 0 0x74
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 0x74, 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 ff ff ff 00 00 ff ff XX XX XX XX XX XX XX XX ........XXXXXXXX
10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
20: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
40: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
50: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
60: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
70: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
80: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
90: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
a0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
b0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
c0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
d0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
e0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
f0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
~ #
