US_BULK_MAX_LUN_LIMIT
if (luns > US_BULK_MAX_LUN_LIMIT) {
luns = US_BULK_MAX_LUN_LIMIT;
#define FSG_MAX_LUNS (US_BULK_MAX_LUN_LIMIT + 1)
if (us->iobuf[0] <= US_BULK_MAX_LUN_LIMIT) {