unknown1           37 core/ptp_chdk.h     int unknown1; // ???
unknown1           24 include/dryos23.h     unsigned int unknown1[2];
unknown1           25 include/dryos31.h     unsigned int unknown1[2];
unknown1           26 include/vxworks.h     unsigned int    unknown1[13];
unknown1          113 tools/ghidra_scripts/datatypes/fw_types.h     int unknown1; // ???