On Wednesday 03 July 2013 19:11:19 Nathan Goings wrote:

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>
> I would think if the attach failed it would be in /var/log/messages.
> How would I debug this?  If the attach is failing, I might try crafting
> it to use a different driver. (guess I should try printf)
>

I usually use printfs in places where I'd like to get more info.

It's been a while since I looked into kernel programming so I'm digging most 
of this this up from my memory:
/sys/kern/subr_autoconf.c - here the matching/attaching magic happens.
It has an AUTOCONF_VERBOSE define that can be used to get more verbose output, 
though I don't remember how useful it is.
Looking at config(8), I think you should be able to set it in your copy of the 
GENERIC file as:
option AUTOCONF_VERBOSE=1

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