[i2c] i2c-pport with kernel 2.6.X

[Till Harbaum / Lists]

Hi,

Am Freitag 20 April 2007 schrieb pierre demanax:
> Another strange behaviour, after inserting the i2c-pport.ko module, i
> launched a i2cdetect 0, where it detects chips for all address even though
> there was nothing connected on my parallel port.
Does this still happen after you connect an pullup to the line you are using
for sda? If the lines are floating you may very well always read "low" which 
means to the i2c layer that some chip seems to be acking everything. Thus
it detects plenty of chips on the bus regardless what address it sends.

> After the HW connection I could not communicate with the chip.
How does you hardware setup exactly look like? Did you just connect an
i2c client chip? Where did you get its power from? Did you connect pullups
to sda and scl?

Till