Having a quick look at extras/ata_id.c i'd guess it has to do something with line 85: cdb[0] = 0xa1; /* OPERATION CODE: 12 byte pass through */ since 0xa1 is the command for blanking aswell. Smells fishy. -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html