Subject: Re: Filling out smbus functions in i2c layer
To: Garrett D'Amore <>
From: Jason Thorpe <>
List: tech-kern
Date: 03/16/2006 22:56:14
On Mar 16, 2006, at 9:26 PM, Garrett D'Amore wrote:

> I thought that smbus was just the "unlicensed" version of i2c?  Do we
> really need to have layers for both i2c and smbus?  Or am I just being
> ignorant?

smbus actually uses slightly different command structure built on top  
of i2c, and some smbus controllers implement those high-level command  
types, rather than giving you access to the raw i2c underneath.

-- thorpej