ray_update_params
wakeup(ray_update_params);
rv = tsleep(ray_update_params, 0|PCATCH, "cmd in use", 0);
(void)tsleep(ray_update_params, 0, "waiting cmd", 0);
wakeup(ray_update_params);
static void ray_update_params(struct ray_softc *);
ray_update_params /* SCP_UPD_UPDATEPARAMS */
wakeup(ray_update_params);