cgd@broadcom.com wrote:

> > Are you advocating
> > a SMBus framework that cannot be made to work on SMBus controllers
> > that do not provide a bitbang interface?
> 
> Yes.  I know of no such controllers, and would love to see an example
> of one.  I don't think you'll find one, to be honest.  I'd bet a small
> amount of money on it.

The PIIX chipsets only handle the pre-defined SMBus transfer types,
and I think the same is true for more PC host controllers. See
cvs.netbsd.org:~ad/ipm.c - Eduardo should already have that.

    http://developer.intel.com/design/intarch/datashts/290562.htm
    http://developer.intel.com/design/chipsets/datashts/290655.htm
    http://developer.intel.com/design/chipsets/datashts/290687.htm

Andrew