Re: I2C -bus programming

From: Jonathan Cameron
Date: Fri Aug 14 2009 - 07:42:52 EST


Copied to i2c mailing list.

> Dear List,
>
> this is my first post here and I am not sure if this is a suitable topic
> here. Anyway I have a Velleman K8000 IO-card and it uses I2C over
> parallel port to communicate.
>
> when I modprobe i2c-parport it does not complain. I tested without card
> connected and it complained so it seems to find the card.
>
> modprobe pcf8591
>
> modprobe i2c-core
>
> modprobe i2c-dev
>
> I am not sure I am doing it right. Should i2c-core probed first ?
>
> anyway now I have
>
> /dev/i2c-0 /dev/i2c-1
>
> Now I don't know whether these i2c-devices refer to this Velleman board
> or some other i2c-device which happen to be in the computer...
>
> If these devices probably refer to Velleman - then how I can refer
> different i2c-devices on the board.
>
>
> I am totally new to this i2c thing (reading spec at the moment but it
> does not help much with Linux).
>
> I would be very greatfull if some could point me the way - thanks.
>
> Best Regards
> Kari Laine
>
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