SUN_IDENTSIZE
kmem_alloc(SUN_IDENTSIZE, ((callback == SLEEP_FUNC)?
(uint_t)SUN_IDENTSIZE, B_READ, cb_flag, NULL);
bzero((caddr_t)devp->dcd_ident, SUN_IDENTSIZE);
SUN_IDENTSIZE, DATA_READ, 0);
(caddr_t)devp->dcd_ident, SUN_IDENTSIZE);
kmem_free((caddr_t)devp->dcd_ident, SUN_IDENTSIZE);