From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anatolij Gustschin <agust-ynQEQJNshbs@public.gmane.org>
Subject: Re: Newbie: accessing i2c features through kernel functions
Date: Fri, 31 May 2013 16:56:20 +0200
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On Fri, 31 May 2013 11:49:41 +0200
CF <cfoissac-GANU6spQydw@public.gmane.org> wrote:

> I'm requesting help. I am currently successfully using i2c-dev module.
> But i'm unable to drive i2c busses from kernel space as i'd do from
> userspace (with the use of open, read, write, ioctl functions). I can't
> logically acces glibc.
> 
> Can somebody point me how i could do from kernel space ? 

you need to get the I2C adapter for your bus using i2c_get_adapter()
and then send the I2C messages by i2c_transfer().

Anatolij