Controller Compatibility
Required Runtime Flow
For each discovered device:
- Query version (
opcode 0x00). - Query capabilities (
BREAD_OP_GET_CAPS). - Gate optional commands by returned flags.
- Use baseline fallback if caps query is unavailable.
Baseline Fallback Policy
If GET_CAPS fails:
- map by type ID to baseline capability set,
- disable optional/advanced operations,
- continue only with safe baseline operations.
Compatibility Matrix (Current)
| Device Profile | Expected Cap Level |
|---|---|
| DCMT Gen1 on classic Nano | DCMT level 2 |
| DCMT Gen2 on classic Nano | DCMT level 2 |
| DCMT Gen1 on Nano Every | DCMT level 3 |
| DCMT Gen2 on Nano Every | DCMT level 3 |
| RLHT Gen1 firmware | RLHT level 1 |
| RLHT Gen2 firmware | RLHT level 1 |
Generation mapping is informational only; runtime caps remain authoritative.
Error Handling Expectations
Controllers should:
- report unsupported commands clearly,
- avoid sending commands behind missing capability flags,
- tolerate unknown capability flags.