Gil Kloepfer suggests this quick strlen fix for returning serial_modhex in ykinfo.c

[rgtx]

For these sample device serial number values, strlen() is hitting the null at the end of serial_hex and returning an incorrect length:

serial: 7123200 serial_hex: 6cb100 serial_modhex: hrnb ["cc" is truncated here]

strlen(ptr)/2 returns the correct length, regardless of content.

serial: 7123200 serial_hex: 6cb100 serial_modhex: hrnbcc

Credit to Gil Kloepfer for the fix.

[klali]

Yes, this looks like a proper quick-fix for this issue, merging.

Thanks!