kern/44761: config_cfdriver_attach() and other functions need documentation

[riz%NetBSD.org@localhost]

>Number:         44761
>Category:       kern
>Synopsis:       More autoconf(9) functions should be documented
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 23 19:05:01 +0000 2011
>Originator:     Jeff Rizzo
>Release:        NetBSD 5.99.48
>Organization:
        
>Environment:
        
        
System: NetBSD netbsd-i386 5.99.48 NetBSD 5.99.48 (TUTORIAL) #1: Tue Mar 22 
11:56:44 PDT 2011 riz@netbsd-i386:/usr/src/sys/arch/i386/compile/TUTORIAL i386
Architecture: i386
Machine: i386
>Description:
        Working with the driver tutorials in an effort to modernize them,
I came across some functions in vnd.c which should be documented somewhere
in section 9, probably autoconf(9).

Here are the functions I think should be documented:

config_cfdriver_attach
config_cfdriver_detach
config_cfdriver_lookup
config_cfattach_attach
config_cfattach_detach
config_cf_attach_lookup
config_cf_attach_lookup_cd
devsw_attach
devsw_detach
>How-To-Repeat:
        Try to learn about these functions without resorting to source code
and guesses about intent.

>Fix:
        Add documentation.  (sorry, none given yet)

>Unformatted: