K 10 svn:author V 3 imp K 8 svn:date V 27 2005-04-29T06:22:41.000000Z K 7 svn:log V 301 Add a detach for pci bridge and pci bus drivers. This allows one to theoretically unload pci bridges or pci drivers. It will also allow detach to work if one needed to detach a subtree. This is inspired by looking at the p4 commits from bms to his 5.4 tree, but I didn't look at the final results. END