| Value | Meaning |
|---|---|
| LV2_OPTIONS_SUCCESS0 | < Completed successfully. |
| LV2_OPTIONS_ERR_UNKNOWN1 | < Unknown error. |
| LV2_OPTIONS_ERR_BAD_SUBJECT1 << 1 | < Invalid/unsupported subject. |
| LV2_OPTIONS_ERR_BAD_KEY1 << 2 | < Invalid/unsupported key. |
| LV2_OPTIONS_ERR_BAD_VALUE1 << 3 | < Invalid/unsupported value. |