B_TYPE
name = devsw_blk2name(B_TYPE(bootdev));
B_TYPE(bootdev), B_ADAPTOR(bootdev),
type = B_TYPE(bootdev);
dev = B_TYPE(bootdev);
bdev = B_TYPE(bootdev);
bdev = B_TYPE(bootdev);
for (q = pdc_devs[B_TYPE(dev)].name; (*p++ = *q++););
major = B_TYPE(bootdev);
B_TYPE(bootdev),
B_TYPE(bootdev),
switch (B_TYPE(bootdev)) {
majdev = B_TYPE(bootdev);
majdev = B_TYPE(bootdev);