BIOC_SDUNUSED
case BIOC_SDUNUSED:
bd->bd_status = BIOC_SDUNUSED;
bd->bd_status = BIOC_SDUNUSED;
bd->bd_status = BIOC_SDUNUSED;
bd->bd_status = BIOC_SDUNUSED;
bd->bd_status = BIOC_SDUNUSED;
bd->bd_status = BIOC_SDUNUSED;