break;
case CDRIOCREADSPEED:
error = acd_set_speed(cdp, 177 * (*(int *)addr), -1);
error = acd_set_speed(cdp, *(int *)addr, -1);
case CDRIOCWRITESPEED:
error = acd_set_speed(cdp, -1, 177 * (*(int *)addr));
error = acd_set_speed(cdp, -1, *(int *)addr);
case CDRIOCGETBLOCKSIZE: