kern/40448: machdep.powersave not documented and can't change

[reed%reedmedia.net@localhost]

>Number:         40448
>Category:       kern
>Synopsis:       machdep.powersave not documented and can't change
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jan 21 16:15:01 +0000 2009
>Originator:     reed%reedmedia.net@localhost
>Release:        NetBSD 4.0
>Organization:
  Jeremy C. Reed
>Environment:
        
        
Architecture: arm
Machine: cats
>Description:
Can't find machdep.powersave documented.

Found it in the arm32 source.

It appears it can be changed, but when I try to set to 1 (from 0)
it says failed with Operation not permitted.

It appears it can not be changed if (cpufuncs.cf_sleep == (void *)
cpufunc_nullop) but I don't know what that means.
>How-To-Repeat:
        
>Fix:
Document it. What is it for?

Can it be changed or not?

>Unformatted: