156 	struct consdev *best_cn, *cn, **list;  in cninit()  local
183 		cn = *list;  in cninit()
184 		cnremove(cn);  in cninit()
186 		if (cn->cn_ops == NULL)  in cninit()
188 		cn->cn_ops->cn_probe(cn);  in cninit()
189 		if (cn->cn_pri == CN_DEAD)  in cninit()
191 		if (best_cn == NULL || cn->cn_pri > best_cn->cn_pri)  in cninit()
192 			best_cn = cn;  in cninit()
197 			cn->cn_ops->cn_init(cn);  in cninit()
198 			cnadd(cn);  in cninit()
231 cnadd(struct consdev *cn)  in cnadd()  argument
237 		if (cnd->cnd_cn == cn)  in cnadd()
246 	cnd->cnd_cn = cn;  in cnadd()
247 	if (cn->cn_name[0] == '\0') {  in cnadd()
249 		printf("WARNING: console at %p has no name\n", cn);  in cnadd()
256 	cnavailable(cn, (cn->cn_flags & CN_FLAG_NOAVAIL) == 0);  in cnadd()
262 cnremove(struct consdev *cn)  in cnremove()  argument
268 		if (cnd->cnd_cn != cn)  in cnremove()
287 		if (cn->cn_term != NULL)  in cnremove()
288 			cn->cn_ops->cn_term(cn);  in cnremove()
295 cnselect(struct consdev *cn)  in cnselect()  argument
300 		if (cnd->cnd_cn != cn)  in cnselect()
312 cnavailable(struct consdev *cn, int available)  in cnavailable()  argument
317 		if (cn_devtab[i].cnd_cn == cn)  in cnavailable()
323 		cn->cn_flags &= ~CN_FLAG_NOAVAIL;  in cnavailable()
327 		cn->cn_flags |= CN_FLAG_NOAVAIL;  in cnavailable()
402 	struct consdev *cn;  in cngrab()  local
405 		cn = cnd->cnd_cn;  in cngrab()
406 		if (!kdb_active || !(cn->cn_flags & CN_FLAG_NODEBUG))  in cngrab()
407 			cn->cn_ops->cn_grab(cn);  in cngrab()
415 	struct consdev *cn;  in cnungrab()  local
418 		cn = cnd->cnd_cn;  in cnungrab()
419 		if (!kdb_active || !(cn->cn_flags & CN_FLAG_NODEBUG))  in cnungrab()
420 			cn->cn_ops->cn_ungrab(cn);  in cnungrab()
428 	struct consdev *cn;  in cnresume()  local
431 		cn = cnd->cnd_cn;  in cnresume()
432 		if (cn->cn_ops->cn_resume != NULL)  in cnresume()
433 			cn->cn_ops->cn_resume(cn);  in cnresume()
458 	struct consdev *cn;  in cncheckc()  local
464 		cn = cnd->cnd_cn;  in cncheckc()
465 		if (!kdb_active || !(cn->cn_flags & CN_FLAG_NODEBUG)) {  in cncheckc()
466 			c = cn->cn_ops->cn_getc(cn);  in cncheckc()
525 	struct consdev *cn;  in cnputc()  local
541 		cn = cnd->cnd_cn;  in cnputc()
542 		if (!kdb_active || !(cn->cn_flags & CN_FLAG_NODEBUG)) {  in cnputc()
544 				cn->cn_ops->cn_putc(cn, '\r');  in cnputc()
545 			cn->cn_ops->cn_putc(cn, c);  in cnputc()