DF_ENABLED
dev->flags = DF_ENABLED;
dev->flags |= DF_ENABLED;
dev->flags &= ~DF_ENABLED;
return((dev->flags & DF_ENABLED) != 0);
if ((dev->flags & DF_ENABLED) == 0) {
if ((dev->flags & DF_ENABLED) == 0) {
(dev->flags&DF_ENABLED? "enabled,":"disabled,"),