Have you read the paper about the autoconf system?  I think it
answers most of your questions. It's a little bit old but still
gives the basic overview of how it works.

http://www.netbsd.org/Documentation/kernel/config-torek.ps

-- Ragge

> >config_search only searches a matching entry in the autoconf tables for a
> >given device and related attachment information.
> Can anyone tell which are the autoconf tables created and how they are 
> classified.
> 
> >config_found_sm also invokes config_attach, which leads to the call of the
> >attach function of the device driver, where config_search only uses match.
> I assume that attach functions are called only when there is a succesful 
> match for a particular device even in the case of config_found_sm.
> 
> >isa only calls config_search because it has a very special way of
> >initializing the attachment information for the device.
> When is the attach function called in the case of config_search and who is 
> going to make the call.
> 
> Can anyone please clarify these.
> 
> -Anand
> 
> _________________________________________________________________
> Access Hotmail from your mobile now. 
> http://server1.msn.co.in/sp03/mobilesms/ Click here.
> 
>