pintrhand
struct pintrhand *pirq_establish(int, int, int (*)(void *), void *, int,
void pirq_disestablish(struct pintrhand *);
struct pintrhand *pih;
struct pintrhand *pih = (struct pintrhand *)ih;
struct pintrhand *
struct pintrhand *ih;
ih = kmem_zalloc(sizeof(struct pintrhand),
kmem_free(ih, sizeof(struct pintrhand));
pirq_disestablish(struct pintrhand *ih)
kmem_free(ih, sizeof(struct pintrhand));
struct pintrhand *ih = arg;