BASE_PCKBC
tag = elb_get_bus_space_tag(BASE_PCKBC);
pckbc_cnattach(tag, _BUS_SPACE_UNSTRIDE(tag, BASE_PCKBC),
_BUS_SPACE_UNSTRIDE(tag, BASE_PCKBC2-BASE_PCKBC), PCKBC_KBD_SLOT,
{ "pckbc", BASE_PCKBC, BASE_PCKBC2, 31, &elb_tag },
BASE_PCKBC,
BASE_PCKBC + 0x6ff