search for: nutdrv_qx_fabula

Thanks for the log - apparently we always get valid (apart from 0.191312) but empty replies, not only for index 0x03, but also for the other queried index (0x0c). I've re-looked at the logs you posted on GitHub, but I don't see anything exotic going on there. Maybe we're missing some sort of handshaking or the like: can you post the whole captures/logs, right from when you plug the

Thanks again for the logs. Now... let's assume those interrupts are needed to get valid values... well, we can't do exactly the same thing, but let's start from this one: https://github.com/zykh/nut/tree/nutdrv_qx_fabula-zero Please, test nutdrv_qx (with subdriver 'fabula') from that branch and post the output of it running with debug-level of 5.