HelenOS sources

fun_quiesce       440 uspace/app/devctl/devctl.c 		rc = fun_quiesce(argv[2]);
fun_quiesce       483 uspace/srv/devman/drv_conn.c 	rc = fun_quiesce(fun);
fun_quiesce        53 uspace/srv/devman/fun.h extern errno_t fun_quiesce(fun_node_t *);
HelenOS homepage, sources at GitHub