rem: void dump_bios_id(int dev)
add: static void dump_bios_id(int dev)
context: void dump_bios_id(int dev){	uint8 id;	if (ioctl(dev, B_GET_BIOS_DRIVE_ID, &id, sizeof(id)) < 0) {		perror("ioctl(B_GET_BIOS_DRIVE_ID)");		return;	}	printf("bios id: %d, 0x%x\n", id, id);	puts("");}