K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2009-09-22T15:43:03.728477Z
K 7
svn:log
V 372
Don't reread the command register to see if enabling I/O or memory
decoding "took".  Other OS's that I checked do not do this and it breaks
some amdpm(4) devices.  Prior to 7.2 we did not honor the error returned
when this failed anyway, so this in effect restores previous behavior.

PR:		kern/137668
Tested by:	Aurelien Mere  aurelien.mere  amc-os.com
MFC after:	3 days

END