K 10 svn:author V 7 weongyo K 8 svn:date V 27 2010-09-11T23:03:40.343095Z K 7 svn:log V 358 Changes the purpose of usb_bus_mem_alloc_all() that did initialize DMA/PIO mode, the tailq and callouts. Just looking the function name it looks it's doing jobs related with memory initialization but it's doing more than it that it's really confusing. So cleans up its meaning and adds a wrapper, usb_bus_struct_init, to initialize the usb_bus structure. END